Water Mist System (Hi-Fog)

medium 123 models total

A water mist system protects an engine room or similar space by discharging fine, high-pressure water droplets that cool the fire and displace oxygen at the seat of the flame, using a fraction of the water volume a conventional sprinkler or deluge system needs for the same space.

Read more — Water Mist System (Hi-Fog) explained ▾

What makes this type distinct

A water mist system fights fire with very fine, high-pressure water droplets rather than the coarse spray of a sprinkler or deluge system. The small droplet size gives a large surface area for the water volume discharged, so the mist absorbs heat fast, partially vaporises into steam that displaces oxygen locally, and cools the surrounding gases enough to slow re-ignition - all with a fraction of the water a conventional system needs for the same enclosure. That matters on a ship, where flooding an engine room with deluge quantities of water raises stability concerns and can damage machinery that a fire itself might have spared. Hi-Fog is the best-known proprietary system in this category, but several manufacturers build comparable high-pressure mist installations.

Water mist fire system flow — Flow diagram of a high-pressure water mist system showing the pump unit charging an accumulator, a section valve controlled by the detection and control panel, and the distribution piping feeding mist nozzles that discharge fine water mist into the protected engine room.

Main components

Pump unit

High-pressure pump set, often driven by an electric motor with a diesel-driven standby pump, building working pressures far above a conventional sprinkler system.

Nozzles

Precision nozzles that atomise water into fine droplets at the design pressure; nozzle spacing and orientation are engineered per protected space, not spread on a generic grid.

Section valves and piping

Stainless steel piping able to hold the working pressure, with section valves that isolate and release water only to the zone where fire is detected, limiting water damage to spaces not on fire.

Detection and release panel

Fire detectors linked to a release panel that opens the correct section valve automatically or on manual release, with local and bridge alarms and a means to record activation.

Water supply and tank

Dedicated fresh or treated water tank sized for the discharge duration required by the protected space, kept isolated from other domestic water systems.

Selection and sizing

System design is driven by the protected space's volume, ventilation arrangement, and fire risk category - a machinery space with open engines is treated differently from an enclosed cargo pump room. Discharge duration and water demand come from the approved system design for that space type, tested and certified rather than calculated from first principles by the installer. Pump capacity and tank volume must cover the largest single protected zone likely to discharge at once, plus the standby pump's ability to take over without interrupting protection.

Protected space volume, layout, and ventilation openings
Required discharge duration for the space's fire risk category
Pump redundancy - electric plus diesel-driven standby is standard on larger installations
Zone isolation, so a discharge in one space does not empty the system for another
Compatibility of piping material with the water supply, avoiding scale or corrosion blocking nozzles

Regulations and class

Fixed water-based fire suppression for machinery spaces falls under SOLAS Ch. II-2, and equivalent water mist systems must be tested and approved against the IMO's guidelines for equivalent fixed fire-fighting systems in machinery spaces, since water mist is accepted as an alternative to CO2 or foam flooding only where it has passed the relevant full-scale fire tests for that space type. Class societies survey the system at defined intervals - pump performance test, valve operation, and a check of nozzle condition - and any modification to the protected space's layout requires the system's approval to be reviewed.

Typical faults

Fault	Consequence
Nozzles partially blocked by scale or debris	Reduced or uneven discharge pattern, weak spots in fire coverage
Section valve stuck or wrongly labelled	Water discharges to the wrong zone or not at all on activation
Standby diesel pump not exercised	Fails to start when the electric pump is unavailable during a real fire
Water tank level low or contaminated	Insufficient discharge duration, or nozzle fouling from sediment
Detection panel not linked to the correct zone	Alarm and release triggered in the wrong section

What to look for in a supplier

Full-scale fire test approval covering the specific protected space types on the vessel
Documented zone and nozzle layout matched to the actual machinery arrangement, not a template
Access to spare nozzles and valves without long lead times, since a blocked nozzle should not wait months
Commissioning test records including pump pressure and flow at the design point
Service technicians trained on the specific proprietary system installed, Hi-Fog or otherwise

Log every partial or test discharge and check nozzles in the affected zone afterwards - a nozzle that mists cleanly on commissioning can silt up over years of standing water in the pipework and nobody notices until the one time it has to work.

Inspector Mode Show All 123 total

9 manufacturers · 123 models

Tyco / Johnson Controls

21 ✓ 21 verified

AquaMist ULF AM27 ✓ verified

Application

Ultra Low Flow (Low-pressure) water mist for Class A fire suppression; banks, offices, hotel rooms (LH/OH1/HC1 risks)

Common Failures & Inspection Points

Area: Nozzle obstruction or blockage
Check: Visual inspection of all nozzles to confirm no obstructions, corrosion deposits, or mineral buildup affecting spray pattern; check for physical damage to diffusers
Area: System pressure compliance and pump operation
Check: Monthly verification that water pressure complies with pump specification and operational characteristic curve; confirm pump operates without abnormal noise or leakage; monthly pump testing
Area: Piping integrity and water quality
Check: Hydraulic testing of all pipework at 1.5 times normal working pressure for minimum 2 hours during commissioning; ongoing monitoring of water supply filtration systems to prevent nozzle clogging
Area: Component condition and valve operation
Check: Inspection of valves, control stations, detection devices, batteries, and alarms for functionality; verification of check valve operation and sectional control valve response; testing every 6 months with monitoring service
Area: System readiness documentation and certification
Check: Verification of current Certificate of Compliance from installation contractor; confirmation that Design, Installation, Operation and Maintenance (DIOM) handbook is on-site; validation of FM/VdS/UL/IMO certification compliance for system configuration

Typ-universelle Inspektionspunkte fuer Fixed Fire Suppression (verifiziert, 2026-06).

Manufacturer Datasheet

Datasheet

AquaMist ULF AM28 ✓ verified

Application

Ultra Low Flow (Low-pressure) for Class A fires; offices, banks, schools (LH/OH1/HC1); VdS approved

Common Failures & Inspection Points

Area: Nozzle obstruction or blockage
Check: Visual inspection of all nozzles to confirm no obstructions, corrosion deposits, or mineral buildup affecting spray pattern; check for physical damage to diffusers
Area: System pressure compliance and pump operation
Check: Monthly verification that water pressure complies with pump specification and operational characteristic curve; confirm pump operates without abnormal noise or leakage; monthly pump testing
Area: Piping integrity and water quality
Check: Hydraulic testing of all pipework at 1.5 times normal working pressure for minimum 2 hours during commissioning; ongoing monitoring of water supply filtration systems to prevent nozzle clogging
Area: Component condition and valve operation
Check: Inspection of valves, control stations, detection devices, batteries, and alarms for functionality; verification of check valve operation and sectional control valve response; testing every 6 months with monitoring service
Area: System readiness documentation and certification
Check: Verification of current Certificate of Compliance from installation contractor; confirmation that Design, Installation, Operation and Maintenance (DIOM) handbook is on-site; validation of FM/VdS/UL/IMO certification compliance for system configuration

Typ-universelle Inspektionspunkte fuer Fixed Fire Suppression (verifiziert, 2026-06).

Manufacturer Datasheet

Datasheet

AquaMist ULF AM29 ✓ verified

Application

Ultra Low Flow (Low-pressure) for Class A fire suppression; data protection, offices (LH/OH1/HC1 risks)

Common Failures & Inspection Points

Area: Nozzle obstruction or blockage
Check: Visual inspection of all nozzles to confirm no obstructions, corrosion deposits, or mineral buildup affecting spray pattern; check for physical damage to diffusers
Area: System pressure compliance and pump operation
Check: Monthly verification that water pressure complies with pump specification and operational characteristic curve; confirm pump operates without abnormal noise or leakage; monthly pump testing
Area: Piping integrity and water quality
Check: Hydraulic testing of all pipework at 1.5 times normal working pressure for minimum 2 hours during commissioning; ongoing monitoring of water supply filtration systems to prevent nozzle clogging
Area: Component condition and valve operation
Check: Inspection of valves, control stations, detection devices, batteries, and alarms for functionality; verification of check valve operation and sectional control valve response; testing every 6 months with monitoring service
Area: System readiness documentation and certification
Check: Verification of current Certificate of Compliance from installation contractor; confirmation that Design, Installation, Operation and Maintenance (DIOM) handbook is on-site; validation of FM/VdS/UL/IMO certification compliance for system configuration

Typ-universelle Inspektionspunkte fuer Fixed Fire Suppression (verifiziert, 2026-06).

Manufacturer Datasheet

Datasheet

AquaMist ULF AM30 ✓ verified

Application

Ultra Low Flow (Low-pressure) upright nozzle for Class A fires; spaces with false floors/ceilings (LH/OH1/HC1)

Common Failures & Inspection Points

Area: Nozzle obstruction or blockage
Check: Visual inspection of all nozzles to confirm no obstructions, corrosion deposits, or mineral buildup affecting spray pattern; check for physical damage to diffusers
Area: System pressure compliance and pump operation
Check: Monthly verification that water pressure complies with pump specification and operational characteristic curve; confirm pump operates without abnormal noise or leakage; monthly pump testing
Area: Piping integrity and water quality
Check: Hydraulic testing of all pipework at 1.5 times normal working pressure for minimum 2 hours during commissioning; ongoing monitoring of water supply filtration systems to prevent nozzle clogging
Area: Component condition and valve operation
Check: Inspection of valves, control stations, detection devices, batteries, and alarms for functionality; verification of check valve operation and sectional control valve response; testing every 6 months with monitoring service
Area: System readiness documentation and certification
Check: Verification of current Certificate of Compliance from installation contractor; confirmation that Design, Installation, Operation and Maintenance (DIOM) handbook is on-site; validation of FM/VdS/UL/IMO certification compliance for system configuration

Typ-universelle Inspektionspunkte fuer Fixed Fire Suppression (verifiziert, 2026-06).

Manufacturer Datasheet

Datasheet

AquaMist ULF AM31 ✓ verified

Application

Ultra Low Flow (Low-pressure) open (non-automatic) pendant nozzle for engineered water mist deluge systems

Common Failures & Inspection Points

Area: Nozzle obstruction or blockage
Check: Visual inspection of all nozzles to confirm no obstructions, corrosion deposits, or mineral buildup affecting spray pattern; check for physical damage to diffusers
Area: System pressure compliance and pump operation
Check: Monthly verification that water pressure complies with pump specification and operational characteristic curve; confirm pump operates without abnormal noise or leakage; monthly pump testing
Area: Piping integrity and water quality
Check: Hydraulic testing of all pipework at 1.5 times normal working pressure for minimum 2 hours during commissioning; ongoing monitoring of water supply filtration systems to prevent nozzle clogging
Area: Component condition and valve operation
Check: Inspection of valves, control stations, detection devices, batteries, and alarms for functionality; verification of check valve operation and sectional control valve response; testing every 6 months with monitoring service
Area: System readiness documentation and certification
Check: Verification of current Certificate of Compliance from installation contractor; confirmation that Design, Installation, Operation and Maintenance (DIOM) handbook is on-site; validation of FM/VdS/UL/IMO certification compliance for system configuration

Typ-universelle Inspektionspunkte fuer Fixed Fire Suppression (verifiziert, 2026-06).

Manufacturer Datasheet

Datasheet

AquaMist ULF AM33 ✓ verified

Application

Ultra Low Flow (Low-pressure) horizontal sidewall nozzle for Class A fire protection (LH/OH1/HC1 risks)

Common Failures & Inspection Points

Area: Nozzle obstruction or blockage
Check: Visual inspection of all nozzles to confirm no obstructions, corrosion deposits, or mineral buildup affecting spray pattern; check for physical damage to diffusers
Area: System pressure compliance and pump operation
Check: Monthly verification that water pressure complies with pump specification and operational characteristic curve; confirm pump operates without abnormal noise or leakage; monthly pump testing
Area: Piping integrity and water quality
Check: Hydraulic testing of all pipework at 1.5 times normal working pressure for minimum 2 hours during commissioning; ongoing monitoring of water supply filtration systems to prevent nozzle clogging
Area: Component condition and valve operation
Check: Inspection of valves, control stations, detection devices, batteries, and alarms for functionality; verification of check valve operation and sectional control valve response; testing every 6 months with monitoring service
Area: System readiness documentation and certification
Check: Verification of current Certificate of Compliance from installation contractor; confirmation that Design, Installation, Operation and Maintenance (DIOM) handbook is on-site; validation of FM/VdS/UL/IMO certification compliance for system configuration

Typ-universelle Inspektionspunkte fuer Fixed Fire Suppression (verifiziert, 2026-06).

Manufacturer Datasheet

Datasheet

AquaMist ULF AM34 ✓ verified

Application

Ultra Low Flow (Low-pressure) horizontal sidewall nozzle for Class A fires; accommodation areas, lobbies, care homes (LH/OH1/HC1)

Common Failures & Inspection Points

Area: Nozzle obstruction or blockage
Check: Visual inspection of all nozzles to confirm no obstructions, corrosion deposits, or mineral buildup affecting spray pattern; check for physical damage to diffusers
Area: System pressure compliance and pump operation
Check: Monthly verification that water pressure complies with pump specification and operational characteristic curve; confirm pump operates without abnormal noise or leakage; monthly pump testing
Area: Piping integrity and water quality
Check: Hydraulic testing of all pipework at 1.5 times normal working pressure for minimum 2 hours during commissioning; ongoing monitoring of water supply filtration systems to prevent nozzle clogging
Area: Component condition and valve operation
Check: Inspection of valves, control stations, detection devices, batteries, and alarms for functionality; verification of check valve operation and sectional control valve response; testing every 6 months with monitoring service
Area: System readiness documentation and certification
Check: Verification of current Certificate of Compliance from installation contractor; confirmation that Design, Installation, Operation and Maintenance (DIOM) handbook is on-site; validation of FM/VdS/UL/IMO certification compliance for system configuration

Typ-universelle Inspektionspunkte fuer Fixed Fire Suppression (verifiziert, 2026-06).

Manufacturer Datasheet

Datasheet

AquaMist ULF AM35 ✓ verified

Application

Ultra Low Flow (Low-pressure) pendant nozzle for Class A fires; labs, libraries/archives, shopping areas (OH2/OH3 risks)

Common Failures & Inspection Points

Area: Nozzle obstruction or blockage
Check: Visual inspection of all nozzles to confirm no obstructions, corrosion deposits, or mineral buildup affecting spray pattern; check for physical damage to diffusers
Area: System pressure compliance and pump operation
Check: Monthly verification that water pressure complies with pump specification and operational characteristic curve; confirm pump operates without abnormal noise or leakage; monthly pump testing
Area: Piping integrity and water quality
Check: Hydraulic testing of all pipework at 1.5 times normal working pressure for minimum 2 hours during commissioning; ongoing monitoring of water supply filtration systems to prevent nozzle clogging
Area: Component condition and valve operation
Check: Inspection of valves, control stations, detection devices, batteries, and alarms for functionality; verification of check valve operation and sectional control valve response; testing every 6 months with monitoring service
Area: System readiness documentation and certification
Check: Verification of current Certificate of Compliance from installation contractor; confirmation that Design, Installation, Operation and Maintenance (DIOM) handbook is on-site; validation of FM/VdS/UL/IMO certification compliance for system configuration

Typ-universelle Inspektionspunkte fuer Fixed Fire Suppression (verifiziert, 2026-06).

Manufacturer Datasheet

Datasheet

AquaMist ULF AM6 ✓ verified

Application

Ultra Low Flow (Low-pressure) closed (automatic) nozzle for Class A fire suppression in engineered water mist systems

Common Failures & Inspection Points

Area: Nozzle obstruction or blockage
Check: Visual inspection of all nozzles to confirm no obstructions, corrosion deposits, or mineral buildup affecting spray pattern; check for physical damage to diffusers
Area: System pressure compliance and pump operation
Check: Monthly verification that water pressure complies with pump specification and operational characteristic curve; confirm pump operates without abnormal noise or leakage; monthly pump testing
Area: Piping integrity and water quality
Check: Hydraulic testing of all pipework at 1.5 times normal working pressure for minimum 2 hours during commissioning; ongoing monitoring of water supply filtration systems to prevent nozzle clogging
Area: Component condition and valve operation
Check: Inspection of valves, control stations, detection devices, batteries, and alarms for functionality; verification of check valve operation and sectional control valve response; testing every 6 months with monitoring service
Area: System readiness documentation and certification
Check: Verification of current Certificate of Compliance from installation contractor; confirmation that Design, Installation, Operation and Maintenance (DIOM) handbook is on-site; validation of FM/VdS/UL/IMO certification compliance for system configuration

Typ-universelle Inspektionspunkte fuer Fixed Fire Suppression (verifiziert, 2026-06).

Manufacturer Datasheet

Datasheet

AquaMist ULF AM11 ✓ verified

Application

Ultra Low Flow (Low-pressure) closed (automatic) nozzle for Class A fire suppression in engineered water mist systems

Common Failures & Inspection Points

Area: Nozzle obstruction or blockage
Check: Visual inspection of all nozzles to confirm no obstructions, corrosion deposits, or mineral buildup affecting spray pattern; check for physical damage to diffusers
Area: System pressure compliance and pump operation
Check: Monthly verification that water pressure complies with pump specification and operational characteristic curve; confirm pump operates without abnormal noise or leakage; monthly pump testing
Area: Piping integrity and water quality
Check: Hydraulic testing of all pipework at 1.5 times normal working pressure for minimum 2 hours during commissioning; ongoing monitoring of water supply filtration systems to prevent nozzle clogging
Area: Component condition and valve operation
Check: Inspection of valves, control stations, detection devices, batteries, and alarms for functionality; verification of check valve operation and sectional control valve response; testing every 6 months with monitoring service
Area: System readiness documentation and certification
Check: Verification of current Certificate of Compliance from installation contractor; confirmation that Design, Installation, Operation and Maintenance (DIOM) handbook is on-site; validation of FM/VdS/UL/IMO certification compliance for system configuration

Typ-universelle Inspektionspunkte fuer Fixed Fire Suppression (verifiziert, 2026-06).

Manufacturer Datasheet

Datasheet

AquaMist ULF AM15 ✓ verified

Application

Ultra Low Flow (Low-pressure) upright non-automatic (open) intermediate pressure nozzle for engineered water mist systems

Common Failures & Inspection Points

Area: Nozzle obstruction or blockage
Check: Visual inspection of all nozzles to confirm no obstructions, corrosion deposits, or mineral buildup affecting spray pattern; check for physical damage to diffusers
Area: System pressure compliance and pump operation
Check: Monthly verification that water pressure complies with pump specification and operational characteristic curve; confirm pump operates without abnormal noise or leakage; monthly pump testing
Area: Piping integrity and water quality
Check: Hydraulic testing of all pipework at 1.5 times normal working pressure for minimum 2 hours during commissioning; ongoing monitoring of water supply filtration systems to prevent nozzle clogging
Area: Component condition and valve operation
Check: Inspection of valves, control stations, detection devices, batteries, and alarms for functionality; verification of check valve operation and sectional control valve response; testing every 6 months with monitoring service
Area: System readiness documentation and certification
Check: Verification of current Certificate of Compliance from installation contractor; confirmation that Design, Installation, Operation and Maintenance (DIOM) handbook is on-site; validation of FM/VdS/UL/IMO certification compliance for system configuration

Typ-universelle Inspektionspunkte fuer Fixed Fire Suppression (verifiziert, 2026-06).

Manufacturer Datasheet

Datasheet

AquaMist ULF AM22 ✓ verified

Application

Ultra Low Flow (Low-pressure) automatic closed nozzle for Class A fires; IMO marine system shipboard applications (cabin, corridor, spaces)

Common Failures & Inspection Points

Area: Nozzle obstruction or blockage
Check: Visual inspection of all nozzles to confirm no obstructions, corrosion deposits, or mineral buildup affecting spray pattern; check for physical damage to diffusers
Area: System pressure compliance and pump operation
Check: Monthly verification that water pressure complies with pump specification and operational characteristic curve; confirm pump operates without abnormal noise or leakage; monthly pump testing
Area: Piping integrity and water quality
Check: Hydraulic testing of all pipework at 1.5 times normal working pressure for minimum 2 hours during commissioning; ongoing monitoring of water supply filtration systems to prevent nozzle clogging
Area: Component condition and valve operation
Check: Inspection of valves, control stations, detection devices, batteries, and alarms for functionality; verification of check valve operation and sectional control valve response; testing every 6 months with monitoring service
Area: System readiness documentation and certification
Check: Verification of current Certificate of Compliance from installation contractor; confirmation that Design, Installation, Operation and Maintenance (DIOM) handbook is on-site; validation of FM/VdS/UL/IMO certification compliance for system configuration

Typ-universelle Inspektionspunkte fuer Fixed Fire Suppression (verifiziert, 2026-06).

Manufacturer Datasheet

Datasheet

AquaMist ULF AM24 ✓ verified

Application

Ultra Low Flow (Low-pressure) automatic closed nozzle for Class A fires; IMO marine system, light/ordinary hazard occupancies

Common Failures & Inspection Points

Area: Nozzle obstruction or blockage
Check: Visual inspection of all nozzles to confirm no obstructions, corrosion deposits, or mineral buildup affecting spray pattern; check for physical damage to diffusers
Area: System pressure compliance and pump operation
Check: Monthly verification that water pressure complies with pump specification and operational characteristic curve; confirm pump operates without abnormal noise or leakage; monthly pump testing
Area: Piping integrity and water quality
Check: Hydraulic testing of all pipework at 1.5 times normal working pressure for minimum 2 hours during commissioning; ongoing monitoring of water supply filtration systems to prevent nozzle clogging
Area: Component condition and valve operation
Check: Inspection of valves, control stations, detection devices, batteries, and alarms for functionality; verification of check valve operation and sectional control valve response; testing every 6 months with monitoring service
Area: System readiness documentation and certification
Check: Verification of current Certificate of Compliance from installation contractor; confirmation that Design, Installation, Operation and Maintenance (DIOM) handbook is on-site; validation of FM/VdS/UL/IMO certification compliance for system configuration

Typ-universelle Inspektionspunkte fuer Fixed Fire Suppression (verifiziert, 2026-06).

Manufacturer Datasheet

Datasheet

AquaMist Type AM4 ✓ verified

Application

Non-automatic (open) stainless steel nozzle for total compartment engineered water mist deluge systems; Class B fires + incidental Class A

Common Failures & Inspection Points

Area: Nozzle obstruction or blockage
Check: Visual inspection of all nozzles to confirm no obstructions, corrosion deposits, or mineral buildup affecting spray pattern; check for physical damage to diffusers
Area: System pressure compliance and pump operation
Check: Monthly verification that water pressure complies with pump specification and operational characteristic curve; confirm pump operates without abnormal noise or leakage; monthly pump testing
Area: Piping integrity and water quality
Check: Hydraulic testing of all pipework at 1.5 times normal working pressure for minimum 2 hours during commissioning; ongoing monitoring of water supply filtration systems to prevent nozzle clogging
Area: Component condition and valve operation
Check: Inspection of valves, control stations, detection devices, batteries, and alarms for functionality; verification of check valve operation and sectional control valve response; testing every 6 months with monitoring service
Area: System readiness documentation and certification
Check: Verification of current Certificate of Compliance from installation contractor; confirmation that Design, Installation, Operation and Maintenance (DIOM) handbook is on-site; validation of FM/VdS/UL/IMO certification compliance for system configuration

Typ-universelle Inspektionspunkte fuer Fixed Fire Suppression (verifiziert, 2026-06).

Manufacturer Datasheet

Datasheet

AquaMist Type AM10/AM10B ✓ verified

Application

Non-automatic (open) stainless steel nozzles for total compartment engineered water mist deluge systems; Class B fires + incidental Class A

Common Failures & Inspection Points

Area: Nozzle obstruction or blockage
Check: Visual inspection of all nozzles to confirm no obstructions, corrosion deposits, or mineral buildup affecting spray pattern; check for physical damage to diffusers
Area: System pressure compliance and pump operation
Check: Monthly verification that water pressure complies with pump specification and operational characteristic curve; confirm pump operates without abnormal noise or leakage; monthly pump testing
Area: Piping integrity and water quality
Check: Hydraulic testing of all pipework at 1.5 times normal working pressure for minimum 2 hours during commissioning; ongoing monitoring of water supply filtration systems to prevent nozzle clogging
Area: Component condition and valve operation
Check: Inspection of valves, control stations, detection devices, batteries, and alarms for functionality; verification of check valve operation and sectional control valve response; testing every 6 months with monitoring service
Area: System readiness documentation and certification
Check: Verification of current Certificate of Compliance from installation contractor; confirmation that Design, Installation, Operation and Maintenance (DIOM) handbook is on-site; validation of FM/VdS/UL/IMO certification compliance for system configuration

Typ-universelle Inspektionspunkte fuer Fixed Fire Suppression (verifiziert, 2026-06).

Manufacturer Datasheet

Datasheet

AquaMist Type AN10 ✓ verified

Application

Non-automatic (open) water mist nozzle for engineered deluge systems

Common Failures & Inspection Points

Area: Nozzle obstruction or blockage
Check: Visual inspection of all nozzles to confirm no obstructions, corrosion deposits, or mineral buildup affecting spray pattern; check for physical damage to diffusers
Area: System pressure compliance and pump operation
Check: Monthly verification that water pressure complies with pump specification and operational characteristic curve; confirm pump operates without abnormal noise or leakage; monthly pump testing
Area: Piping integrity and water quality
Check: Hydraulic testing of all pipework at 1.5 times normal working pressure for minimum 2 hours during commissioning; ongoing monitoring of water supply filtration systems to prevent nozzle clogging
Area: Component condition and valve operation
Check: Inspection of valves, control stations, detection devices, batteries, and alarms for functionality; verification of check valve operation and sectional control valve response; testing every 6 months with monitoring service
Area: System readiness documentation and certification
Check: Verification of current Certificate of Compliance from installation contractor; confirmation that Design, Installation, Operation and Maintenance (DIOM) handbook is on-site; validation of FM/VdS/UL/IMO certification compliance for system configuration

Typ-universelle Inspektionspunkte fuer Fixed Fire Suppression (verifiziert, 2026-06).

Manufacturer Datasheet

Datasheet

AquaMist SONIC System ✓ verified

Application

Hybrid water mist + nitrogen gas fire suppression; rapid fire suppression for non-toxic, residue-free protection

Common Failures & Inspection Points

Area: Nozzle obstruction or blockage
Check: Visual inspection of all nozzles to confirm no obstructions, corrosion deposits, or mineral buildup affecting spray pattern; check for physical damage to diffusers
Area: System pressure compliance and pump operation
Check: Monthly verification that water pressure complies with pump specification and operational characteristic curve; confirm pump operates without abnormal noise or leakage; monthly pump testing
Area: Piping integrity and water quality
Check: Hydraulic testing of all pipework at 1.5 times normal working pressure for minimum 2 hours during commissioning; ongoing monitoring of water supply filtration systems to prevent nozzle clogging
Area: Component condition and valve operation
Check: Inspection of valves, control stations, detection devices, batteries, and alarms for functionality; verification of check valve operation and sectional control valve response; testing every 6 months with monitoring service
Area: System readiness documentation and certification
Check: Verification of current Certificate of Compliance from installation contractor; confirmation that Design, Installation, Operation and Maintenance (DIOM) handbook is on-site; validation of FM/VdS/UL/IMO certification compliance for system configuration

Typ-universelle Inspektionspunkte fuer Fixed Fire Suppression (verifiziert, 2026-06).

Manufacturer Datasheet

Datasheet

AquaMist FOG System ✓ verified

Application

High-pressure water mist fire suppression; Class A & B fires in turbine rooms, engine test cells, paint spray booths, machinery spaces

Common Failures & Inspection Points

Area: Nozzle obstruction or blockage
Check: Visual inspection of all nozzles to confirm no obstructions, corrosion deposits, or mineral buildup affecting spray pattern; check for physical damage to diffusers
Area: System pressure compliance and pump operation
Check: Monthly verification that water pressure complies with pump specification and operational characteristic curve; confirm pump operates without abnormal noise or leakage; monthly pump testing
Area: Piping integrity and water quality
Check: Hydraulic testing of all pipework at 1.5 times normal working pressure for minimum 2 hours during commissioning; ongoing monitoring of water supply filtration systems to prevent nozzle clogging
Area: Component condition and valve operation
Check: Inspection of valves, control stations, detection devices, batteries, and alarms for functionality; verification of check valve operation and sectional control valve response; testing every 6 months with monitoring service
Area: System readiness documentation and certification
Check: Verification of current Certificate of Compliance from installation contractor; confirmation that Design, Installation, Operation and Maintenance (DIOM) handbook is on-site; validation of FM/VdS/UL/IMO certification compliance for system configuration

Typ-universelle Inspektionspunkte fuer Fixed Fire Suppression (verifiziert, 2026-06).

Manufacturer Datasheet

Datasheet

AquaMist MicroDrop High-Pressure Systems ✓ verified

Application

High-pressure water mist for large spaces and ordinary combustibles; dry pipe (open nozzle) and wet pipe (sealed glass bulb) systems

Common Failures & Inspection Points

Area: Nozzle obstruction or blockage
Check: Visual inspection of all nozzles to confirm no obstructions, corrosion deposits, or mineral buildup affecting spray pattern; check for physical damage to diffusers
Area: System pressure compliance and pump operation
Check: Monthly verification that water pressure complies with pump specification and operational characteristic curve; confirm pump operates without abnormal noise or leakage; monthly pump testing
Area: Piping integrity and water quality
Check: Hydraulic testing of all pipework at 1.5 times normal working pressure for minimum 2 hours during commissioning; ongoing monitoring of water supply filtration systems to prevent nozzle clogging
Area: Component condition and valve operation
Check: Inspection of valves, control stations, detection devices, batteries, and alarms for functionality; verification of check valve operation and sectional control valve response; testing every 6 months with monitoring service
Area: System readiness documentation and certification
Check: Verification of current Certificate of Compliance from installation contractor; confirmation that Design, Installation, Operation and Maintenance (DIOM) handbook is on-site; validation of FM/VdS/UL/IMO certification compliance for system configuration

Typ-universelle Inspektionspunkte fuer Fixed Fire Suppression (verifiziert, 2026-06).

[08.08.2026] Datenblattlink entfernt (fehler 503): http://www.tyco.no/products/WaterMist/microdrop-pump-systems

Datasheet

AquaMist Mist Control Center (MCC) Pump Skid Unit ✓ verified

Application

Preassembled pump/control skid for AquaMist ULF systems; includes motor, positive displacement pump, valve cabinet (Red-E Cabinet)

Common Failures & Inspection Points

Area: Nozzle obstruction or blockage
Check: Visual inspection of all nozzles to confirm no obstructions, corrosion deposits, or mineral buildup affecting spray pattern; check for physical damage to diffusers
Area: System pressure compliance and pump operation
Check: Monthly verification that water pressure complies with pump specification and operational characteristic curve; confirm pump operates without abnormal noise or leakage; monthly pump testing
Area: Piping integrity and water quality
Check: Hydraulic testing of all pipework at 1.5 times normal working pressure for minimum 2 hours during commissioning; ongoing monitoring of water supply filtration systems to prevent nozzle clogging
Area: Component condition and valve operation
Check: Inspection of valves, control stations, detection devices, batteries, and alarms for functionality; verification of check valve operation and sectional control valve response; testing every 6 months with monitoring service
Area: System readiness documentation and certification
Check: Verification of current Certificate of Compliance from installation contractor; confirmation that Design, Installation, Operation and Maintenance (DIOM) handbook is on-site; validation of FM/VdS/UL/IMO certification compliance for system configuration

Typ-universelle Inspektionspunkte fuer Fixed Fire Suppression (verifiziert, 2026-06).

Manufacturer Datasheet

Datasheet

AquaMist Type IFP Zone Control Valve Cabinet ✓ verified

Application

Industrial Fryer Protection (IFP) application-specific zone control valve system for coordinating water mist discharge zones

Common Failures & Inspection Points

Area: Nozzle obstruction or blockage
Check: Visual inspection of all nozzles to confirm no obstructions, corrosion deposits, or mineral buildup affecting spray pattern; check for physical damage to diffusers
Area: System pressure compliance and pump operation
Check: Monthly verification that water pressure complies with pump specification and operational characteristic curve; confirm pump operates without abnormal noise or leakage; monthly pump testing
Area: Piping integrity and water quality
Check: Hydraulic testing of all pipework at 1.5 times normal working pressure for minimum 2 hours during commissioning; ongoing monitoring of water supply filtration systems to prevent nozzle clogging
Area: Component condition and valve operation
Check: Inspection of valves, control stations, detection devices, batteries, and alarms for functionality; verification of check valve operation and sectional control valve response; testing every 6 months with monitoring service
Area: System readiness documentation and certification
Check: Verification of current Certificate of Compliance from installation contractor; confirmation that Design, Installation, Operation and Maintenance (DIOM) handbook is on-site; validation of FM/VdS/UL/IMO certification compliance for system configuration

Typ-universelle Inspektionspunkte fuer Fixed Fire Suppression (verifiziert, 2026-06).

Manufacturer Datasheet

Datasheet

Marioff Hi-Fog

17 ✓ 17 verified

HI-FOG 1000 Sprinkler ✓ verified

Application

Marine accommodation and service spaces

Common Failures & Inspection Points

Area: Nozzle and spray head obstruction/clogging from water impurities or mineral deposits
Check: Monthly visual inspection for visible blockages; annual cleaning and flushing of nozzles through strainer validation. Check strainer condition (typically 300 µm micron filters). Water quality testing per EN 14972 standards.
Area: System pressure loss or inadequate discharge pressure (target: ~1,050 psi sprinkler, 2,300 psi discharge)
Check: Quarterly pressure testing via pressure gauges. Verify pump discharge pressure (2,300 psi target). Check accumulator pre-charge pressure (nitrogen/compressed air). Validate integrity of high-pressure tubing for micro-cracks or corrosion.
Area: Heat-sensitive bulb degradation, glass micro-cracks, or bulb failure in sprinklers (57°C to 141°C ratings)
Check: Annual visual inspection of bulbs in sample sprinklers from each temperature rating. Replace bulbs showing discoloration, cloudiness, or micro-cracks. Validate bulb response through functional testing per EN 14972. Thermographic scanning of ceiling areas.
Area: Water supply contamination, corrosion of stainless steel components (AISI 316L), or scale buildup in piping
Check: Annual water quality analysis (potable water standard per EN 14972). Visual inspection of interior tubing sections for corrosion via test ports. Flush system at min. 5-year intervals. Inspect stainless steel tubing for surface oxidation or pitting.
Area: Control system, PLC logic, or activation mechanism failure in LPU/EPU/GPU units
Check: Annual functional system activation test (dry discharge test) to verify pump start, pressure rise, and valve actuation. Battery backup verification. Software/firmware version check on PLC controllers. Validate touch-screen interface display on LPU. Simulate fire signal activation.

Typ-universelle Inspektionspunkte fuer Fixed Fire Suppression (verifiziert, 2026-06).

Manufacturer Datasheet

Datasheet

HI-FOG 1900 Sprinkler ✓ verified

Application

Marine accommodation and service spaces (replacement for HI-FOG 1000)

Common Failures & Inspection Points

Area: Nozzle and spray head obstruction/clogging from water impurities or mineral deposits
Check: Monthly visual inspection for visible blockages; annual cleaning and flushing of nozzles through strainer validation. Check strainer condition (typically 300 µm micron filters). Water quality testing per EN 14972 standards.
Area: System pressure loss or inadequate discharge pressure (target: ~1,050 psi sprinkler, 2,300 psi discharge)
Check: Quarterly pressure testing via pressure gauges. Verify pump discharge pressure (2,300 psi target). Check accumulator pre-charge pressure (nitrogen/compressed air). Validate integrity of high-pressure tubing for micro-cracks or corrosion.
Area: Heat-sensitive bulb degradation, glass micro-cracks, or bulb failure in sprinklers (57°C to 141°C ratings)
Check: Annual visual inspection of bulbs in sample sprinklers from each temperature rating. Replace bulbs showing discoloration, cloudiness, or micro-cracks. Validate bulb response through functional testing per EN 14972. Thermographic scanning of ceiling areas.
Area: Water supply contamination, corrosion of stainless steel components (AISI 316L), or scale buildup in piping
Check: Annual water quality analysis (potable water standard per EN 14972). Visual inspection of interior tubing sections for corrosion via test ports. Flush system at min. 5-year intervals. Inspect stainless steel tubing for surface oxidation or pitting.
Area: Control system, PLC logic, or activation mechanism failure in LPU/EPU/GPU units
Check: Annual functional system activation test (dry discharge test) to verify pump start, pressure rise, and valve actuation. Battery backup verification. Software/firmware version check on PLC controllers. Validate touch-screen interface display on LPU. Simulate fire signal activation.

Typ-universelle Inspektionspunkte fuer Fixed Fire Suppression (verifiziert, 2026-06).

Manufacturer Datasheet

Datasheet

HI-FOG 2000 Sprinkler - Type S10-57C/0 ✓ verified

Application

Marine accommodation, public and service spaces

Common Failures & Inspection Points

Area: Nozzle and spray head obstruction/clogging from water impurities or mineral deposits
Check: Monthly visual inspection for visible blockages; annual cleaning and flushing of nozzles through strainer validation. Check strainer condition (typically 300 µm micron filters). Water quality testing per EN 14972 standards.
Area: System pressure loss or inadequate discharge pressure (target: ~1,050 psi sprinkler, 2,300 psi discharge)
Check: Quarterly pressure testing via pressure gauges. Verify pump discharge pressure (2,300 psi target). Check accumulator pre-charge pressure (nitrogen/compressed air). Validate integrity of high-pressure tubing for micro-cracks or corrosion.
Area: Heat-sensitive bulb degradation, glass micro-cracks, or bulb failure in sprinklers (57°C to 141°C ratings)
Check: Annual visual inspection of bulbs in sample sprinklers from each temperature rating. Replace bulbs showing discoloration, cloudiness, or micro-cracks. Validate bulb response through functional testing per EN 14972. Thermographic scanning of ceiling areas.
Area: Water supply contamination, corrosion of stainless steel components (AISI 316L), or scale buildup in piping
Check: Annual water quality analysis (potable water standard per EN 14972). Visual inspection of interior tubing sections for corrosion via test ports. Flush system at min. 5-year intervals. Inspect stainless steel tubing for surface oxidation or pitting.
Area: Control system, PLC logic, or activation mechanism failure in LPU/EPU/GPU units
Check: Annual functional system activation test (dry discharge test) to verify pump start, pressure rise, and valve actuation. Battery backup verification. Software/firmware version check on PLC controllers. Validate touch-screen interface display on LPU. Simulate fire signal activation.

Typ-universelle Inspektionspunkte fuer Fixed Fire Suppression (verifiziert, 2026-06).

Manufacturer Datasheet

Datasheet

HI-FOG 3000 Sprinkler ✓ verified

Application

Marine accommodation, public and service spaces; high-rise building atriums

Common Failures & Inspection Points

Area: Nozzle and spray head obstruction/clogging from water impurities or mineral deposits
Check: Monthly visual inspection for visible blockages; annual cleaning and flushing of nozzles through strainer validation. Check strainer condition (typically 300 µm micron filters). Water quality testing per EN 14972 standards.
Area: System pressure loss or inadequate discharge pressure (target: ~1,050 psi sprinkler, 2,300 psi discharge)
Check: Quarterly pressure testing via pressure gauges. Verify pump discharge pressure (2,300 psi target). Check accumulator pre-charge pressure (nitrogen/compressed air). Validate integrity of high-pressure tubing for micro-cracks or corrosion.
Area: Heat-sensitive bulb degradation, glass micro-cracks, or bulb failure in sprinklers (57°C to 141°C ratings)
Check: Annual visual inspection of bulbs in sample sprinklers from each temperature rating. Replace bulbs showing discoloration, cloudiness, or micro-cracks. Validate bulb response through functional testing per EN 14972. Thermographic scanning of ceiling areas.
Area: Water supply contamination, corrosion of stainless steel components (AISI 316L), or scale buildup in piping
Check: Annual water quality analysis (potable water standard per EN 14972). Visual inspection of interior tubing sections for corrosion via test ports. Flush system at min. 5-year intervals. Inspect stainless steel tubing for surface oxidation or pitting.
Area: Control system, PLC logic, or activation mechanism failure in LPU/EPU/GPU units
Check: Annual functional system activation test (dry discharge test) to verify pump start, pressure rise, and valve actuation. Battery backup verification. Software/firmware version check on PLC controllers. Validate touch-screen interface display on LPU. Simulate fire signal activation.

Typ-universelle Inspektionspunkte fuer Fixed Fire Suppression (verifiziert, 2026-06).

Manufacturer Datasheet

Datasheet

HI-FOG 3000 Atrium Sprinkler (Ceiling system) ✓ verified

Application

High-rise buildings and atriums

Common Failures & Inspection Points

Area: Nozzle and spray head obstruction/clogging from water impurities or mineral deposits
Check: Monthly visual inspection for visible blockages; annual cleaning and flushing of nozzles through strainer validation. Check strainer condition (typically 300 µm micron filters). Water quality testing per EN 14972 standards.
Area: System pressure loss or inadequate discharge pressure (target: ~1,050 psi sprinkler, 2,300 psi discharge)
Check: Quarterly pressure testing via pressure gauges. Verify pump discharge pressure (2,300 psi target). Check accumulator pre-charge pressure (nitrogen/compressed air). Validate integrity of high-pressure tubing for micro-cracks or corrosion.
Area: Heat-sensitive bulb degradation, glass micro-cracks, or bulb failure in sprinklers (57°C to 141°C ratings)
Check: Annual visual inspection of bulbs in sample sprinklers from each temperature rating. Replace bulbs showing discoloration, cloudiness, or micro-cracks. Validate bulb response through functional testing per EN 14972. Thermographic scanning of ceiling areas.
Area: Water supply contamination, corrosion of stainless steel components (AISI 316L), or scale buildup in piping
Check: Annual water quality analysis (potable water standard per EN 14972). Visual inspection of interior tubing sections for corrosion via test ports. Flush system at min. 5-year intervals. Inspect stainless steel tubing for surface oxidation or pitting.
Area: Control system, PLC logic, or activation mechanism failure in LPU/EPU/GPU units
Check: Annual functional system activation test (dry discharge test) to verify pump start, pressure rise, and valve actuation. Battery backup verification. Software/firmware version check on PLC controllers. Validate touch-screen interface display on LPU. Simulate fire signal activation.

Typ-universelle Inspektionspunkte fuer Fixed Fire Suppression (verifiziert, 2026-06).

Manufacturer Datasheet

Datasheet

HI-FOG 3000 Spray Head (Atrium sidewall deluge) ✓ verified

Application

Atrium and high-space protection when ceiling installation not possible

Common Failures & Inspection Points

Area: Nozzle and spray head obstruction/clogging from water impurities or mineral deposits
Check: Monthly visual inspection for visible blockages; annual cleaning and flushing of nozzles through strainer validation. Check strainer condition (typically 300 µm micron filters). Water quality testing per EN 14972 standards.
Area: System pressure loss or inadequate discharge pressure (target: ~1,050 psi sprinkler, 2,300 psi discharge)
Check: Quarterly pressure testing via pressure gauges. Verify pump discharge pressure (2,300 psi target). Check accumulator pre-charge pressure (nitrogen/compressed air). Validate integrity of high-pressure tubing for micro-cracks or corrosion.
Area: Heat-sensitive bulb degradation, glass micro-cracks, or bulb failure in sprinklers (57°C to 141°C ratings)
Check: Annual visual inspection of bulbs in sample sprinklers from each temperature rating. Replace bulbs showing discoloration, cloudiness, or micro-cracks. Validate bulb response through functional testing per EN 14972. Thermographic scanning of ceiling areas.
Area: Water supply contamination, corrosion of stainless steel components (AISI 316L), or scale buildup in piping
Check: Annual water quality analysis (potable water standard per EN 14972). Visual inspection of interior tubing sections for corrosion via test ports. Flush system at min. 5-year intervals. Inspect stainless steel tubing for surface oxidation or pitting.
Area: Control system, PLC logic, or activation mechanism failure in LPU/EPU/GPU units
Check: Annual functional system activation test (dry discharge test) to verify pump start, pressure rise, and valve actuation. Battery backup verification. Software/firmware version check on PLC controllers. Validate touch-screen interface display on LPU. Simulate fire signal activation.

Typ-universelle Inspektionspunkte fuer Fixed Fire Suppression (verifiziert, 2026-06).

Manufacturer Datasheet

Datasheet

HI-FOG Pop-Out Spray Head ✓ verified

Application

Passenger train compartments and enclosed spaces

Common Failures & Inspection Points

Area: Nozzle and spray head obstruction/clogging from water impurities or mineral deposits
Check: Monthly visual inspection for visible blockages; annual cleaning and flushing of nozzles through strainer validation. Check strainer condition (typically 300 µm micron filters). Water quality testing per EN 14972 standards.
Area: System pressure loss or inadequate discharge pressure (target: ~1,050 psi sprinkler, 2,300 psi discharge)
Check: Quarterly pressure testing via pressure gauges. Verify pump discharge pressure (2,300 psi target). Check accumulator pre-charge pressure (nitrogen/compressed air). Validate integrity of high-pressure tubing for micro-cracks or corrosion.
Area: Heat-sensitive bulb degradation, glass micro-cracks, or bulb failure in sprinklers (57°C to 141°C ratings)
Check: Annual visual inspection of bulbs in sample sprinklers from each temperature rating. Replace bulbs showing discoloration, cloudiness, or micro-cracks. Validate bulb response through functional testing per EN 14972. Thermographic scanning of ceiling areas.
Area: Water supply contamination, corrosion of stainless steel components (AISI 316L), or scale buildup in piping
Check: Annual water quality analysis (potable water standard per EN 14972). Visual inspection of interior tubing sections for corrosion via test ports. Flush system at min. 5-year intervals. Inspect stainless steel tubing for surface oxidation or pitting.
Area: Control system, PLC logic, or activation mechanism failure in LPU/EPU/GPU units
Check: Annual functional system activation test (dry discharge test) to verify pump start, pressure rise, and valve actuation. Battery backup verification. Software/firmware version check on PLC controllers. Validate touch-screen interface display on LPU. Simulate fire signal activation.

Typ-universelle Inspektionspunkte fuer Fixed Fire Suppression (verifiziert, 2026-06).

Manufacturer Datasheet

Datasheet

HI-FOG Open Spray Head (General machinery/deluge) ✓ verified

Application

Machinery spaces, gas turbine enclosures, local and total flood applications

Common Failures & Inspection Points

Area: Nozzle and spray head obstruction/clogging from water impurities or mineral deposits
Check: Monthly visual inspection for visible blockages; annual cleaning and flushing of nozzles through strainer validation. Check strainer condition (typically 300 µm micron filters). Water quality testing per EN 14972 standards.
Area: System pressure loss or inadequate discharge pressure (target: ~1,050 psi sprinkler, 2,300 psi discharge)
Check: Quarterly pressure testing via pressure gauges. Verify pump discharge pressure (2,300 psi target). Check accumulator pre-charge pressure (nitrogen/compressed air). Validate integrity of high-pressure tubing for micro-cracks or corrosion.
Area: Heat-sensitive bulb degradation, glass micro-cracks, or bulb failure in sprinklers (57°C to 141°C ratings)
Check: Annual visual inspection of bulbs in sample sprinklers from each temperature rating. Replace bulbs showing discoloration, cloudiness, or micro-cracks. Validate bulb response through functional testing per EN 14972. Thermographic scanning of ceiling areas.
Area: Water supply contamination, corrosion of stainless steel components (AISI 316L), or scale buildup in piping
Check: Annual water quality analysis (potable water standard per EN 14972). Visual inspection of interior tubing sections for corrosion via test ports. Flush system at min. 5-year intervals. Inspect stainless steel tubing for surface oxidation or pitting.
Area: Control system, PLC logic, or activation mechanism failure in LPU/EPU/GPU units
Check: Annual functional system activation test (dry discharge test) to verify pump start, pressure rise, and valve actuation. Battery backup verification. Software/firmware version check on PLC controllers. Validate touch-screen interface display on LPU. Simulate fire signal activation.

Typ-universelle Inspektionspunkte fuer Fixed Fire Suppression (verifiziert, 2026-06).

Manufacturer Datasheet

Datasheet

LPU (Land Pump Unit) ✓ verified

Application

Land-based fire protection systems for data centers, high-rise buildings, industrial facilities

Common Failures & Inspection Points

Area: Nozzle and spray head obstruction/clogging from water impurities or mineral deposits
Check: Monthly visual inspection for visible blockages; annual cleaning and flushing of nozzles through strainer validation. Check strainer condition (typically 300 µm micron filters). Water quality testing per EN 14972 standards.
Area: System pressure loss or inadequate discharge pressure (target: ~1,050 psi sprinkler, 2,300 psi discharge)
Check: Quarterly pressure testing via pressure gauges. Verify pump discharge pressure (2,300 psi target). Check accumulator pre-charge pressure (nitrogen/compressed air). Validate integrity of high-pressure tubing for micro-cracks or corrosion.
Area: Heat-sensitive bulb degradation, glass micro-cracks, or bulb failure in sprinklers (57°C to 141°C ratings)
Check: Annual visual inspection of bulbs in sample sprinklers from each temperature rating. Replace bulbs showing discoloration, cloudiness, or micro-cracks. Validate bulb response through functional testing per EN 14972. Thermographic scanning of ceiling areas.
Area: Water supply contamination, corrosion of stainless steel components (AISI 316L), or scale buildup in piping
Check: Annual water quality analysis (potable water standard per EN 14972). Visual inspection of interior tubing sections for corrosion via test ports. Flush system at min. 5-year intervals. Inspect stainless steel tubing for surface oxidation or pitting.
Area: Control system, PLC logic, or activation mechanism failure in LPU/EPU/GPU units
Check: Annual functional system activation test (dry discharge test) to verify pump start, pressure rise, and valve actuation. Battery backup verification. Software/firmware version check on PLC controllers. Validate touch-screen interface display on LPU. Simulate fire signal activation.

Typ-universelle Inspektionspunkte fuer Fixed Fire Suppression (verifiziert, 2026-06).

Manufacturer Datasheet

Datasheet

EPU (Electric Pump Unit) ✓ verified

Application

Marine and industrial applications requiring larger flow capacities

Common Failures & Inspection Points

Area: Nozzle and spray head obstruction/clogging from water impurities or mineral deposits
Check: Monthly visual inspection for visible blockages; annual cleaning and flushing of nozzles through strainer validation. Check strainer condition (typically 300 µm micron filters). Water quality testing per EN 14972 standards.
Area: System pressure loss or inadequate discharge pressure (target: ~1,050 psi sprinkler, 2,300 psi discharge)
Check: Quarterly pressure testing via pressure gauges. Verify pump discharge pressure (2,300 psi target). Check accumulator pre-charge pressure (nitrogen/compressed air). Validate integrity of high-pressure tubing for micro-cracks or corrosion.
Area: Heat-sensitive bulb degradation, glass micro-cracks, or bulb failure in sprinklers (57°C to 141°C ratings)
Check: Annual visual inspection of bulbs in sample sprinklers from each temperature rating. Replace bulbs showing discoloration, cloudiness, or micro-cracks. Validate bulb response through functional testing per EN 14972. Thermographic scanning of ceiling areas.
Area: Water supply contamination, corrosion of stainless steel components (AISI 316L), or scale buildup in piping
Check: Annual water quality analysis (potable water standard per EN 14972). Visual inspection of interior tubing sections for corrosion via test ports. Flush system at min. 5-year intervals. Inspect stainless steel tubing for surface oxidation or pitting.
Area: Control system, PLC logic, or activation mechanism failure in LPU/EPU/GPU units
Check: Annual functional system activation test (dry discharge test) to verify pump start, pressure rise, and valve actuation. Battery backup verification. Software/firmware version check on PLC controllers. Validate touch-screen interface display on LPU. Simulate fire signal activation.

Typ-universelle Inspektionspunkte fuer Fixed Fire Suppression (verifiziert, 2026-06).

[08.08.2026] Datenblattlink entfernt (fehler 522): http://www.hifog-epu.com/

Datasheet

GPU (Gas-driven Pump Unit) ✓ verified

Application

Machinery spaces, gas turbine enclosures, rotating equipment protection

Common Failures & Inspection Points

Area: Nozzle and spray head obstruction/clogging from water impurities or mineral deposits
Check: Monthly visual inspection for visible blockages; annual cleaning and flushing of nozzles through strainer validation. Check strainer condition (typically 300 µm micron filters). Water quality testing per EN 14972 standards.
Area: System pressure loss or inadequate discharge pressure (target: ~1,050 psi sprinkler, 2,300 psi discharge)
Check: Quarterly pressure testing via pressure gauges. Verify pump discharge pressure (2,300 psi target). Check accumulator pre-charge pressure (nitrogen/compressed air). Validate integrity of high-pressure tubing for micro-cracks or corrosion.
Area: Heat-sensitive bulb degradation, glass micro-cracks, or bulb failure in sprinklers (57°C to 141°C ratings)
Check: Annual visual inspection of bulbs in sample sprinklers from each temperature rating. Replace bulbs showing discoloration, cloudiness, or micro-cracks. Validate bulb response through functional testing per EN 14972. Thermographic scanning of ceiling areas.
Area: Water supply contamination, corrosion of stainless steel components (AISI 316L), or scale buildup in piping
Check: Annual water quality analysis (potable water standard per EN 14972). Visual inspection of interior tubing sections for corrosion via test ports. Flush system at min. 5-year intervals. Inspect stainless steel tubing for surface oxidation or pitting.
Area: Control system, PLC logic, or activation mechanism failure in LPU/EPU/GPU units
Check: Annual functional system activation test (dry discharge test) to verify pump start, pressure rise, and valve actuation. Battery backup verification. Software/firmware version check on PLC controllers. Validate touch-screen interface display on LPU. Simulate fire signal activation.

Typ-universelle Inspektionspunkte fuer Fixed Fire Suppression (verifiziert, 2026-06).

Manufacturer Datasheet

Datasheet

MAU (Machinery Space Accumulator Unit) ✓ verified

Application

Small machinery spaces, gas turbine enclosures, rotating equipment

Common Failures & Inspection Points

Area: Nozzle and spray head obstruction/clogging from water impurities or mineral deposits
Check: Monthly visual inspection for visible blockages; annual cleaning and flushing of nozzles through strainer validation. Check strainer condition (typically 300 µm micron filters). Water quality testing per EN 14972 standards.
Area: System pressure loss or inadequate discharge pressure (target: ~1,050 psi sprinkler, 2,300 psi discharge)
Check: Quarterly pressure testing via pressure gauges. Verify pump discharge pressure (2,300 psi target). Check accumulator pre-charge pressure (nitrogen/compressed air). Validate integrity of high-pressure tubing for micro-cracks or corrosion.
Area: Heat-sensitive bulb degradation, glass micro-cracks, or bulb failure in sprinklers (57°C to 141°C ratings)
Check: Annual visual inspection of bulbs in sample sprinklers from each temperature rating. Replace bulbs showing discoloration, cloudiness, or micro-cracks. Validate bulb response through functional testing per EN 14972. Thermographic scanning of ceiling areas.
Area: Water supply contamination, corrosion of stainless steel components (AISI 316L), or scale buildup in piping
Check: Annual water quality analysis (potable water standard per EN 14972). Visual inspection of interior tubing sections for corrosion via test ports. Flush system at min. 5-year intervals. Inspect stainless steel tubing for surface oxidation or pitting.
Area: Control system, PLC logic, or activation mechanism failure in LPU/EPU/GPU units
Check: Annual functional system activation test (dry discharge test) to verify pump start, pressure rise, and valve actuation. Battery backup verification. Software/firmware version check on PLC controllers. Validate touch-screen interface display on LPU. Simulate fire signal activation.

Typ-universelle Inspektionspunkte fuer Fixed Fire Suppression (verifiziert, 2026-06).

Manufacturer Datasheet

Datasheet

KAU (Kitchen Accumulator Unit) ✓ verified

Application

Deep fat fryer and galley fire protection in marine and land food facilities

Common Failures & Inspection Points

Area: Nozzle and spray head obstruction/clogging from water impurities or mineral deposits
Check: Monthly visual inspection for visible blockages; annual cleaning and flushing of nozzles through strainer validation. Check strainer condition (typically 300 µm micron filters). Water quality testing per EN 14972 standards.
Area: System pressure loss or inadequate discharge pressure (target: ~1,050 psi sprinkler, 2,300 psi discharge)
Check: Quarterly pressure testing via pressure gauges. Verify pump discharge pressure (2,300 psi target). Check accumulator pre-charge pressure (nitrogen/compressed air). Validate integrity of high-pressure tubing for micro-cracks or corrosion.
Area: Heat-sensitive bulb degradation, glass micro-cracks, or bulb failure in sprinklers (57°C to 141°C ratings)
Check: Annual visual inspection of bulbs in sample sprinklers from each temperature rating. Replace bulbs showing discoloration, cloudiness, or micro-cracks. Validate bulb response through functional testing per EN 14972. Thermographic scanning of ceiling areas.
Area: Water supply contamination, corrosion of stainless steel components (AISI 316L), or scale buildup in piping
Check: Annual water quality analysis (potable water standard per EN 14972). Visual inspection of interior tubing sections for corrosion via test ports. Flush system at min. 5-year intervals. Inspect stainless steel tubing for surface oxidation or pitting.
Area: Control system, PLC logic, or activation mechanism failure in LPU/EPU/GPU units
Check: Annual functional system activation test (dry discharge test) to verify pump start, pressure rise, and valve actuation. Battery backup verification. Software/firmware version check on PLC controllers. Validate touch-screen interface display on LPU. Simulate fire signal activation.

Typ-universelle Inspektionspunkte fuer Fixed Fire Suppression (verifiziert, 2026-06).

Manufacturer Datasheet

Datasheet

ACU (Accumulator Backup Unit) ✓ verified

Application

Marine sprinkler system backup and enhanced safety

Common Failures & Inspection Points

Area: Nozzle and spray head obstruction/clogging from water impurities or mineral deposits
Check: Monthly visual inspection for visible blockages; annual cleaning and flushing of nozzles through strainer validation. Check strainer condition (typically 300 µm micron filters). Water quality testing per EN 14972 standards.
Area: System pressure loss or inadequate discharge pressure (target: ~1,050 psi sprinkler, 2,300 psi discharge)
Check: Quarterly pressure testing via pressure gauges. Verify pump discharge pressure (2,300 psi target). Check accumulator pre-charge pressure (nitrogen/compressed air). Validate integrity of high-pressure tubing for micro-cracks or corrosion.
Area: Heat-sensitive bulb degradation, glass micro-cracks, or bulb failure in sprinklers (57°C to 141°C ratings)
Check: Annual visual inspection of bulbs in sample sprinklers from each temperature rating. Replace bulbs showing discoloration, cloudiness, or micro-cracks. Validate bulb response through functional testing per EN 14972. Thermographic scanning of ceiling areas.
Area: Water supply contamination, corrosion of stainless steel components (AISI 316L), or scale buildup in piping
Check: Annual water quality analysis (potable water standard per EN 14972). Visual inspection of interior tubing sections for corrosion via test ports. Flush system at min. 5-year intervals. Inspect stainless steel tubing for surface oxidation or pitting.
Area: Control system, PLC logic, or activation mechanism failure in LPU/EPU/GPU units
Check: Annual functional system activation test (dry discharge test) to verify pump start, pressure rise, and valve actuation. Battery backup verification. Software/firmware version check on PLC controllers. Validate touch-screen interface display on LPU. Simulate fire signal activation.

Typ-universelle Inspektionspunkte fuer Fixed Fire Suppression (verifiziert, 2026-06).

Manufacturer Datasheet

Datasheet

WAU (Water Accumulator Unit) ✓ verified

Application

Marine sprinkler system backup and water reserve

Common Failures & Inspection Points

Area: Nozzle and spray head obstruction/clogging from water impurities or mineral deposits
Check: Monthly visual inspection for visible blockages; annual cleaning and flushing of nozzles through strainer validation. Check strainer condition (typically 300 µm micron filters). Water quality testing per EN 14972 standards.
Area: System pressure loss or inadequate discharge pressure (target: ~1,050 psi sprinkler, 2,300 psi discharge)
Check: Quarterly pressure testing via pressure gauges. Verify pump discharge pressure (2,300 psi target). Check accumulator pre-charge pressure (nitrogen/compressed air). Validate integrity of high-pressure tubing for micro-cracks or corrosion.
Area: Heat-sensitive bulb degradation, glass micro-cracks, or bulb failure in sprinklers (57°C to 141°C ratings)
Check: Annual visual inspection of bulbs in sample sprinklers from each temperature rating. Replace bulbs showing discoloration, cloudiness, or micro-cracks. Validate bulb response through functional testing per EN 14972. Thermographic scanning of ceiling areas.
Area: Water supply contamination, corrosion of stainless steel components (AISI 316L), or scale buildup in piping
Check: Annual water quality analysis (potable water standard per EN 14972). Visual inspection of interior tubing sections for corrosion via test ports. Flush system at min. 5-year intervals. Inspect stainless steel tubing for surface oxidation or pitting.
Area: Control system, PLC logic, or activation mechanism failure in LPU/EPU/GPU units
Check: Annual functional system activation test (dry discharge test) to verify pump start, pressure rise, and valve actuation. Battery backup verification. Software/firmware version check on PLC controllers. Validate touch-screen interface display on LPU. Simulate fire signal activation.

Typ-universelle Inspektionspunkte fuer Fixed Fire Suppression (verifiziert, 2026-06).

Manufacturer Datasheet

Datasheet

Stainless Steel High-Pressure Tubing ✓ verified

Application

System piping for all HI-FOG installations (land and marine)

Common Failures & Inspection Points

Area: Nozzle and spray head obstruction/clogging from water impurities or mineral deposits
Check: Monthly visual inspection for visible blockages; annual cleaning and flushing of nozzles through strainer validation. Check strainer condition (typically 300 µm micron filters). Water quality testing per EN 14972 standards.
Area: System pressure loss or inadequate discharge pressure (target: ~1,050 psi sprinkler, 2,300 psi discharge)
Check: Quarterly pressure testing via pressure gauges. Verify pump discharge pressure (2,300 psi target). Check accumulator pre-charge pressure (nitrogen/compressed air). Validate integrity of high-pressure tubing for micro-cracks or corrosion.
Area: Heat-sensitive bulb degradation, glass micro-cracks, or bulb failure in sprinklers (57°C to 141°C ratings)
Check: Annual visual inspection of bulbs in sample sprinklers from each temperature rating. Replace bulbs showing discoloration, cloudiness, or micro-cracks. Validate bulb response through functional testing per EN 14972. Thermographic scanning of ceiling areas.
Area: Water supply contamination, corrosion of stainless steel components (AISI 316L), or scale buildup in piping
Check: Annual water quality analysis (potable water standard per EN 14972). Visual inspection of interior tubing sections for corrosion via test ports. Flush system at min. 5-year intervals. Inspect stainless steel tubing for surface oxidation or pitting.
Area: Control system, PLC logic, or activation mechanism failure in LPU/EPU/GPU units
Check: Annual functional system activation test (dry discharge test) to verify pump start, pressure rise, and valve actuation. Battery backup verification. Software/firmware version check on PLC controllers. Validate touch-screen interface display on LPU. Simulate fire signal activation.

Typ-universelle Inspektionspunkte fuer Fixed Fire Suppression (verifiziert, 2026-06).

Manufacturer Datasheet

Datasheet

HI-FOG Fire Suppression Valves (Multiple types) ✓ verified

Application

System control and activation in all HI-FOG installations

Common Failures & Inspection Points

Area: Nozzle and spray head obstruction/clogging from water impurities or mineral deposits
Check: Monthly visual inspection for visible blockages; annual cleaning and flushing of nozzles through strainer validation. Check strainer condition (typically 300 µm micron filters). Water quality testing per EN 14972 standards.
Area: System pressure loss or inadequate discharge pressure (target: ~1,050 psi sprinkler, 2,300 psi discharge)
Check: Quarterly pressure testing via pressure gauges. Verify pump discharge pressure (2,300 psi target). Check accumulator pre-charge pressure (nitrogen/compressed air). Validate integrity of high-pressure tubing for micro-cracks or corrosion.
Area: Heat-sensitive bulb degradation, glass micro-cracks, or bulb failure in sprinklers (57°C to 141°C ratings)
Check: Annual visual inspection of bulbs in sample sprinklers from each temperature rating. Replace bulbs showing discoloration, cloudiness, or micro-cracks. Validate bulb response through functional testing per EN 14972. Thermographic scanning of ceiling areas.
Area: Water supply contamination, corrosion of stainless steel components (AISI 316L), or scale buildup in piping
Check: Annual water quality analysis (potable water standard per EN 14972). Visual inspection of interior tubing sections for corrosion via test ports. Flush system at min. 5-year intervals. Inspect stainless steel tubing for surface oxidation or pitting.
Area: Control system, PLC logic, or activation mechanism failure in LPU/EPU/GPU units
Check: Annual functional system activation test (dry discharge test) to verify pump start, pressure rise, and valve actuation. Battery backup verification. Software/firmware version check on PLC controllers. Validate touch-screen interface display on LPU. Simulate fire signal activation.

Typ-universelle Inspektionspunkte fuer Fixed Fire Suppression (verifiziert, 2026-06).

Manufacturer Datasheet

Datasheet

Ultra Fog

14 ✓ 14 verified

603 Bulb Nozzle ✓ verified

Application

Fire suppression with conventional activation in public areas and accommodations

Common Failures & Inspection Points

Area: Nozzle clogging and blockade from mineral deposits, biofilm, or sediment accumulation preventing proper water mist generation
Check: Visually inspect nozzles for blockages; use patented Ultra Fog Nozzle Test Tool to verify piston function without breaking glass bulbs; conduct laboratory testing of nozzles after 10 years service and every 5 years thereafter
Area: Pump performance degradation including abnormal noise, vibration, and reduced flow capacity indicating internal wear or cavitation damage
Check: Measure discharge pressure against pump characteristic curve; check for unusual operating noise or vibration; verify flow rate capacity (35-50 L/min for P35 model); monitor motor current draw for erratic startup cycles indicating filter blockage
Area: Nitrogen pre-charge loss in accumulator unit reducing system pressure stability and emergency discharge capability during fire event
Check: Verify nitrogen pre-pressure setting (typically 90% of operating pressure for 100 bar systems); test accumulator pressure switch alarm function; inspect for visible corrosion, cracks, or leakage in accumulator body; calibrate all pressure gauges annually
Area: Filter clogging at inlet (25µm stage) or discharge (100µm stage) causing pump short-cycling, pressure loss, or nozzle blockade formation
Check: Document filter cleanliness condition; measure pressure differential across filters (high differential indicates clogging); perform visual inspection of inlet and outlet filter elements; clean or replace filters after system operation or annually minimum; verify dual 25µm tank filters are present and functional
Area: Piping corrosion, sediment deposits, and internal rust scale generating blockages in distribution network or damaging pressure seals
Check: Pressure test entire piping network at 1.5x maximum working pressure (150 bar minimum for 100 bar systems); inspect water supply tank interior annually for sediment/rust accumulation; flush system annually; drain and refill water tank yearly; verify air passage from nozzles is unobstructed

Typ-universelle Inspektionspunkte fuer Fixed Fire Suppression (verifiziert, 2026-06).

Manufacturer Datasheet

Datasheet

202 Open Nozzle ✓ verified

Application

Fire suppression with intelligent activation in machinery spaces and engine rooms

Common Failures & Inspection Points

Area: Nozzle clogging and blockade from mineral deposits, biofilm, or sediment accumulation preventing proper water mist generation
Check: Visually inspect nozzles for blockages; use patented Ultra Fog Nozzle Test Tool to verify piston function without breaking glass bulbs; conduct laboratory testing of nozzles after 10 years service and every 5 years thereafter
Area: Pump performance degradation including abnormal noise, vibration, and reduced flow capacity indicating internal wear or cavitation damage
Check: Measure discharge pressure against pump characteristic curve; check for unusual operating noise or vibration; verify flow rate capacity (35-50 L/min for P35 model); monitor motor current draw for erratic startup cycles indicating filter blockage
Area: Nitrogen pre-charge loss in accumulator unit reducing system pressure stability and emergency discharge capability during fire event
Check: Verify nitrogen pre-pressure setting (typically 90% of operating pressure for 100 bar systems); test accumulator pressure switch alarm function; inspect for visible corrosion, cracks, or leakage in accumulator body; calibrate all pressure gauges annually
Area: Filter clogging at inlet (25µm stage) or discharge (100µm stage) causing pump short-cycling, pressure loss, or nozzle blockade formation
Check: Document filter cleanliness condition; measure pressure differential across filters (high differential indicates clogging); perform visual inspection of inlet and outlet filter elements; clean or replace filters after system operation or annually minimum; verify dual 25µm tank filters are present and functional
Area: Piping corrosion, sediment deposits, and internal rust scale generating blockages in distribution network or damaging pressure seals
Check: Pressure test entire piping network at 1.5x maximum working pressure (150 bar minimum for 100 bar systems); inspect water supply tank interior annually for sediment/rust accumulation; flush system annually; drain and refill water tank yearly; verify air passage from nozzles is unobstructed

Typ-universelle Inspektionspunkte fuer Fixed Fire Suppression (verifiziert, 2026-06).

Manufacturer Datasheet

Datasheet

950606-021 Nozzle 320 Open 0.8 ✓ verified

Application

High-pressure water mist suppression in marine and industrial applications

Common Failures & Inspection Points

Area: Nozzle clogging and blockade from mineral deposits, biofilm, or sediment accumulation preventing proper water mist generation
Check: Visually inspect nozzles for blockages; use patented Ultra Fog Nozzle Test Tool to verify piston function without breaking glass bulbs; conduct laboratory testing of nozzles after 10 years service and every 5 years thereafter
Area: Pump performance degradation including abnormal noise, vibration, and reduced flow capacity indicating internal wear or cavitation damage
Check: Measure discharge pressure against pump characteristic curve; check for unusual operating noise or vibration; verify flow rate capacity (35-50 L/min for P35 model); monitor motor current draw for erratic startup cycles indicating filter blockage
Area: Nitrogen pre-charge loss in accumulator unit reducing system pressure stability and emergency discharge capability during fire event
Check: Verify nitrogen pre-pressure setting (typically 90% of operating pressure for 100 bar systems); test accumulator pressure switch alarm function; inspect for visible corrosion, cracks, or leakage in accumulator body; calibrate all pressure gauges annually
Area: Filter clogging at inlet (25µm stage) or discharge (100µm stage) causing pump short-cycling, pressure loss, or nozzle blockade formation
Check: Document filter cleanliness condition; measure pressure differential across filters (high differential indicates clogging); perform visual inspection of inlet and outlet filter elements; clean or replace filters after system operation or annually minimum; verify dual 25µm tank filters are present and functional
Area: Piping corrosion, sediment deposits, and internal rust scale generating blockages in distribution network or damaging pressure seals
Check: Pressure test entire piping network at 1.5x maximum working pressure (150 bar minimum for 100 bar systems); inspect water supply tank interior annually for sediment/rust accumulation; flush system annually; drain and refill water tank yearly; verify air passage from nozzles is unobstructed

Typ-universelle Inspektionspunkte fuer Fixed Fire Suppression (verifiziert, 2026-06).

Manufacturer Datasheet

Datasheet

Deep Fat Fryer Nozzle ✓ verified

Application

Specialized fire suppression for commercial kitchen deep fat fryers and ducting

Common Failures & Inspection Points

Area: Nozzle clogging and blockade from mineral deposits, biofilm, or sediment accumulation preventing proper water mist generation
Check: Visually inspect nozzles for blockages; use patented Ultra Fog Nozzle Test Tool to verify piston function without breaking glass bulbs; conduct laboratory testing of nozzles after 10 years service and every 5 years thereafter
Area: Pump performance degradation including abnormal noise, vibration, and reduced flow capacity indicating internal wear or cavitation damage
Check: Measure discharge pressure against pump characteristic curve; check for unusual operating noise or vibration; verify flow rate capacity (35-50 L/min for P35 model); monitor motor current draw for erratic startup cycles indicating filter blockage
Area: Nitrogen pre-charge loss in accumulator unit reducing system pressure stability and emergency discharge capability during fire event
Check: Verify nitrogen pre-pressure setting (typically 90% of operating pressure for 100 bar systems); test accumulator pressure switch alarm function; inspect for visible corrosion, cracks, or leakage in accumulator body; calibrate all pressure gauges annually
Area: Filter clogging at inlet (25µm stage) or discharge (100µm stage) causing pump short-cycling, pressure loss, or nozzle blockade formation
Check: Document filter cleanliness condition; measure pressure differential across filters (high differential indicates clogging); perform visual inspection of inlet and outlet filter elements; clean or replace filters after system operation or annually minimum; verify dual 25µm tank filters are present and functional
Area: Piping corrosion, sediment deposits, and internal rust scale generating blockages in distribution network or damaging pressure seals
Check: Pressure test entire piping network at 1.5x maximum working pressure (150 bar minimum for 100 bar systems); inspect water supply tank interior annually for sediment/rust accumulation; flush system annually; drain and refill water tank yearly; verify air passage from nozzles is unobstructed

Typ-universelle Inspektionspunkte fuer Fixed Fire Suppression (verifiziert, 2026-06).

Manufacturer Datasheet

Datasheet

Nozzle Test Tool (Patented) ✓ verified

Application

Non-destructive testing of water mist nozzles without breaking glass bulbs during commissioning and maintenance

Common Failures & Inspection Points

Area: Nozzle clogging and blockade from mineral deposits, biofilm, or sediment accumulation preventing proper water mist generation
Check: Visually inspect nozzles for blockages; use patented Ultra Fog Nozzle Test Tool to verify piston function without breaking glass bulbs; conduct laboratory testing of nozzles after 10 years service and every 5 years thereafter
Area: Pump performance degradation including abnormal noise, vibration, and reduced flow capacity indicating internal wear or cavitation damage
Check: Measure discharge pressure against pump characteristic curve; check for unusual operating noise or vibration; verify flow rate capacity (35-50 L/min for P35 model); monitor motor current draw for erratic startup cycles indicating filter blockage
Area: Nitrogen pre-charge loss in accumulator unit reducing system pressure stability and emergency discharge capability during fire event
Check: Verify nitrogen pre-pressure setting (typically 90% of operating pressure for 100 bar systems); test accumulator pressure switch alarm function; inspect for visible corrosion, cracks, or leakage in accumulator body; calibrate all pressure gauges annually
Area: Filter clogging at inlet (25µm stage) or discharge (100µm stage) causing pump short-cycling, pressure loss, or nozzle blockade formation
Check: Document filter cleanliness condition; measure pressure differential across filters (high differential indicates clogging); perform visual inspection of inlet and outlet filter elements; clean or replace filters after system operation or annually minimum; verify dual 25µm tank filters are present and functional
Area: Piping corrosion, sediment deposits, and internal rust scale generating blockages in distribution network or damaging pressure seals
Check: Pressure test entire piping network at 1.5x maximum working pressure (150 bar minimum for 100 bar systems); inspect water supply tank interior annually for sediment/rust accumulation; flush system annually; drain and refill water tank yearly; verify air passage from nozzles is unobstructed

Typ-universelle Inspektionspunkte fuer Fixed Fire Suppression (verifiziert, 2026-06).

Manufacturer Datasheet

Datasheet

P35 Pump Station ✓ verified

Application

Single small-capacity high-pressure pump system for compact fire suppression installations

Common Failures & Inspection Points

Area: Nozzle clogging and blockade from mineral deposits, biofilm, or sediment accumulation preventing proper water mist generation
Check: Visually inspect nozzles for blockages; use patented Ultra Fog Nozzle Test Tool to verify piston function without breaking glass bulbs; conduct laboratory testing of nozzles after 10 years service and every 5 years thereafter
Area: Pump performance degradation including abnormal noise, vibration, and reduced flow capacity indicating internal wear or cavitation damage
Check: Measure discharge pressure against pump characteristic curve; check for unusual operating noise or vibration; verify flow rate capacity (35-50 L/min for P35 model); monitor motor current draw for erratic startup cycles indicating filter blockage
Area: Nitrogen pre-charge loss in accumulator unit reducing system pressure stability and emergency discharge capability during fire event
Check: Verify nitrogen pre-pressure setting (typically 90% of operating pressure for 100 bar systems); test accumulator pressure switch alarm function; inspect for visible corrosion, cracks, or leakage in accumulator body; calibrate all pressure gauges annually
Area: Filter clogging at inlet (25µm stage) or discharge (100µm stage) causing pump short-cycling, pressure loss, or nozzle blockade formation
Check: Document filter cleanliness condition; measure pressure differential across filters (high differential indicates clogging); perform visual inspection of inlet and outlet filter elements; clean or replace filters after system operation or annually minimum; verify dual 25µm tank filters are present and functional
Area: Piping corrosion, sediment deposits, and internal rust scale generating blockages in distribution network or damaging pressure seals
Check: Pressure test entire piping network at 1.5x maximum working pressure (150 bar minimum for 100 bar systems); inspect water supply tank interior annually for sediment/rust accumulation; flush system annually; drain and refill water tank yearly; verify air passage from nozzles is unobstructed

Typ-universelle Inspektionspunkte fuer Fixed Fire Suppression (verifiziert, 2026-06).

Manufacturer Datasheet

Datasheet

Micro Pump Station ✓ verified

Application

Compact modular pump unit for small-to-medium water mist fire suppression systems

Common Failures & Inspection Points

Area: Nozzle clogging and blockade from mineral deposits, biofilm, or sediment accumulation preventing proper water mist generation
Check: Visually inspect nozzles for blockages; use patented Ultra Fog Nozzle Test Tool to verify piston function without breaking glass bulbs; conduct laboratory testing of nozzles after 10 years service and every 5 years thereafter
Area: Pump performance degradation including abnormal noise, vibration, and reduced flow capacity indicating internal wear or cavitation damage
Check: Measure discharge pressure against pump characteristic curve; check for unusual operating noise or vibration; verify flow rate capacity (35-50 L/min for P35 model); monitor motor current draw for erratic startup cycles indicating filter blockage
Area: Nitrogen pre-charge loss in accumulator unit reducing system pressure stability and emergency discharge capability during fire event
Check: Verify nitrogen pre-pressure setting (typically 90% of operating pressure for 100 bar systems); test accumulator pressure switch alarm function; inspect for visible corrosion, cracks, or leakage in accumulator body; calibrate all pressure gauges annually
Area: Filter clogging at inlet (25µm stage) or discharge (100µm stage) causing pump short-cycling, pressure loss, or nozzle blockade formation
Check: Document filter cleanliness condition; measure pressure differential across filters (high differential indicates clogging); perform visual inspection of inlet and outlet filter elements; clean or replace filters after system operation or annually minimum; verify dual 25µm tank filters are present and functional
Area: Piping corrosion, sediment deposits, and internal rust scale generating blockages in distribution network or damaging pressure seals
Check: Pressure test entire piping network at 1.5x maximum working pressure (150 bar minimum for 100 bar systems); inspect water supply tank interior annually for sediment/rust accumulation; flush system annually; drain and refill water tank yearly; verify air passage from nozzles is unobstructed

Typ-universelle Inspektionspunkte fuer Fixed Fire Suppression (verifiziert, 2026-06).

Manufacturer Datasheet

Datasheet

Master Pump Station ✓ verified

Application

Large-scale flexible pump system for marine vessels and major industrial installations

Common Failures & Inspection Points

Area: Nozzle clogging and blockade from mineral deposits, biofilm, or sediment accumulation preventing proper water mist generation
Check: Visually inspect nozzles for blockages; use patented Ultra Fog Nozzle Test Tool to verify piston function without breaking glass bulbs; conduct laboratory testing of nozzles after 10 years service and every 5 years thereafter
Area: Pump performance degradation including abnormal noise, vibration, and reduced flow capacity indicating internal wear or cavitation damage
Check: Measure discharge pressure against pump characteristic curve; check for unusual operating noise or vibration; verify flow rate capacity (35-50 L/min for P35 model); monitor motor current draw for erratic startup cycles indicating filter blockage
Area: Nitrogen pre-charge loss in accumulator unit reducing system pressure stability and emergency discharge capability during fire event
Check: Verify nitrogen pre-pressure setting (typically 90% of operating pressure for 100 bar systems); test accumulator pressure switch alarm function; inspect for visible corrosion, cracks, or leakage in accumulator body; calibrate all pressure gauges annually
Area: Filter clogging at inlet (25µm stage) or discharge (100µm stage) causing pump short-cycling, pressure loss, or nozzle blockade formation
Check: Document filter cleanliness condition; measure pressure differential across filters (high differential indicates clogging); perform visual inspection of inlet and outlet filter elements; clean or replace filters after system operation or annually minimum; verify dual 25µm tank filters are present and functional
Area: Piping corrosion, sediment deposits, and internal rust scale generating blockages in distribution network or damaging pressure seals
Check: Pressure test entire piping network at 1.5x maximum working pressure (150 bar minimum for 100 bar systems); inspect water supply tank interior annually for sediment/rust accumulation; flush system annually; drain and refill water tank yearly; verify air passage from nozzles is unobstructed

Typ-universelle Inspektionspunkte fuer Fixed Fire Suppression (verifiziert, 2026-06).

Manufacturer Datasheet

Datasheet

Pump Station MPU235-MPU335 Series ✓ verified

Application

Modular pump station series for scalable water mist fire suppression system designs

Common Failures & Inspection Points

Area: Nozzle clogging and blockade from mineral deposits, biofilm, or sediment accumulation preventing proper water mist generation
Check: Visually inspect nozzles for blockages; use patented Ultra Fog Nozzle Test Tool to verify piston function without breaking glass bulbs; conduct laboratory testing of nozzles after 10 years service and every 5 years thereafter
Area: Pump performance degradation including abnormal noise, vibration, and reduced flow capacity indicating internal wear or cavitation damage
Check: Measure discharge pressure against pump characteristic curve; check for unusual operating noise or vibration; verify flow rate capacity (35-50 L/min for P35 model); monitor motor current draw for erratic startup cycles indicating filter blockage
Area: Nitrogen pre-charge loss in accumulator unit reducing system pressure stability and emergency discharge capability during fire event
Check: Verify nitrogen pre-pressure setting (typically 90% of operating pressure for 100 bar systems); test accumulator pressure switch alarm function; inspect for visible corrosion, cracks, or leakage in accumulator body; calibrate all pressure gauges annually
Area: Filter clogging at inlet (25µm stage) or discharge (100µm stage) causing pump short-cycling, pressure loss, or nozzle blockade formation
Check: Document filter cleanliness condition; measure pressure differential across filters (high differential indicates clogging); perform visual inspection of inlet and outlet filter elements; clean or replace filters after system operation or annually minimum; verify dual 25µm tank filters are present and functional
Area: Piping corrosion, sediment deposits, and internal rust scale generating blockages in distribution network or damaging pressure seals
Check: Pressure test entire piping network at 1.5x maximum working pressure (150 bar minimum for 100 bar systems); inspect water supply tank interior annually for sediment/rust accumulation; flush system annually; drain and refill water tank yearly; verify air passage from nozzles is unobstructed

Typ-universelle Inspektionspunkte fuer Fixed Fire Suppression (verifiziert, 2026-06).

Manufacturer Datasheet

Datasheet

Extension Pump Unit ✓ verified

Application

Expandable pump capacity module to increase system output for large marine and industrial fire suppression installations

Common Failures & Inspection Points

Area: Nozzle clogging and blockade from mineral deposits, biofilm, or sediment accumulation preventing proper water mist generation
Check: Visually inspect nozzles for blockages; use patented Ultra Fog Nozzle Test Tool to verify piston function without breaking glass bulbs; conduct laboratory testing of nozzles after 10 years service and every 5 years thereafter
Area: Pump performance degradation including abnormal noise, vibration, and reduced flow capacity indicating internal wear or cavitation damage
Check: Measure discharge pressure against pump characteristic curve; check for unusual operating noise or vibration; verify flow rate capacity (35-50 L/min for P35 model); monitor motor current draw for erratic startup cycles indicating filter blockage
Area: Nitrogen pre-charge loss in accumulator unit reducing system pressure stability and emergency discharge capability during fire event
Check: Verify nitrogen pre-pressure setting (typically 90% of operating pressure for 100 bar systems); test accumulator pressure switch alarm function; inspect for visible corrosion, cracks, or leakage in accumulator body; calibrate all pressure gauges annually
Area: Filter clogging at inlet (25µm stage) or discharge (100µm stage) causing pump short-cycling, pressure loss, or nozzle blockade formation
Check: Document filter cleanliness condition; measure pressure differential across filters (high differential indicates clogging); perform visual inspection of inlet and outlet filter elements; clean or replace filters after system operation or annually minimum; verify dual 25µm tank filters are present and functional
Area: Piping corrosion, sediment deposits, and internal rust scale generating blockages in distribution network or damaging pressure seals
Check: Pressure test entire piping network at 1.5x maximum working pressure (150 bar minimum for 100 bar systems); inspect water supply tank interior annually for sediment/rust accumulation; flush system annually; drain and refill water tank yearly; verify air passage from nozzles is unobstructed

Typ-universelle Inspektionspunkte fuer Fixed Fire Suppression (verifiziert, 2026-06).

Manufacturer Datasheet

Datasheet

Section Valve (Hydraulic) ✓ verified

Application

High-pressure hydraulic valve for sectionalizing and controlling water mist flow distribution in system piping

Common Failures & Inspection Points

Area: Nozzle clogging and blockade from mineral deposits, biofilm, or sediment accumulation preventing proper water mist generation
Check: Visually inspect nozzles for blockages; use patented Ultra Fog Nozzle Test Tool to verify piston function without breaking glass bulbs; conduct laboratory testing of nozzles after 10 years service and every 5 years thereafter
Area: Pump performance degradation including abnormal noise, vibration, and reduced flow capacity indicating internal wear or cavitation damage
Check: Measure discharge pressure against pump characteristic curve; check for unusual operating noise or vibration; verify flow rate capacity (35-50 L/min for P35 model); monitor motor current draw for erratic startup cycles indicating filter blockage
Area: Nitrogen pre-charge loss in accumulator unit reducing system pressure stability and emergency discharge capability during fire event
Check: Verify nitrogen pre-pressure setting (typically 90% of operating pressure for 100 bar systems); test accumulator pressure switch alarm function; inspect for visible corrosion, cracks, or leakage in accumulator body; calibrate all pressure gauges annually
Area: Filter clogging at inlet (25µm stage) or discharge (100µm stage) causing pump short-cycling, pressure loss, or nozzle blockade formation
Check: Document filter cleanliness condition; measure pressure differential across filters (high differential indicates clogging); perform visual inspection of inlet and outlet filter elements; clean or replace filters after system operation or annually minimum; verify dual 25µm tank filters are present and functional
Area: Piping corrosion, sediment deposits, and internal rust scale generating blockages in distribution network or damaging pressure seals
Check: Pressure test entire piping network at 1.5x maximum working pressure (150 bar minimum for 100 bar systems); inspect water supply tank interior annually for sediment/rust accumulation; flush system annually; drain and refill water tank yearly; verify air passage from nozzles is unobstructed

Typ-universelle Inspektionspunkte fuer Fixed Fire Suppression (verifiziert, 2026-06).

Manufacturer Datasheet

Datasheet

Accumulator Unit ✓ verified

Application

Pressure storage vessel for maintaining system pressure and supporting pump relief functions in water mist suppression systems

Common Failures & Inspection Points

Area: Nozzle clogging and blockade from mineral deposits, biofilm, or sediment accumulation preventing proper water mist generation
Check: Visually inspect nozzles for blockages; use patented Ultra Fog Nozzle Test Tool to verify piston function without breaking glass bulbs; conduct laboratory testing of nozzles after 10 years service and every 5 years thereafter
Area: Pump performance degradation including abnormal noise, vibration, and reduced flow capacity indicating internal wear or cavitation damage
Check: Measure discharge pressure against pump characteristic curve; check for unusual operating noise or vibration; verify flow rate capacity (35-50 L/min for P35 model); monitor motor current draw for erratic startup cycles indicating filter blockage
Area: Nitrogen pre-charge loss in accumulator unit reducing system pressure stability and emergency discharge capability during fire event
Check: Verify nitrogen pre-pressure setting (typically 90% of operating pressure for 100 bar systems); test accumulator pressure switch alarm function; inspect for visible corrosion, cracks, or leakage in accumulator body; calibrate all pressure gauges annually
Area: Filter clogging at inlet (25µm stage) or discharge (100µm stage) causing pump short-cycling, pressure loss, or nozzle blockade formation
Check: Document filter cleanliness condition; measure pressure differential across filters (high differential indicates clogging); perform visual inspection of inlet and outlet filter elements; clean or replace filters after system operation or annually minimum; verify dual 25µm tank filters are present and functional
Area: Piping corrosion, sediment deposits, and internal rust scale generating blockages in distribution network or damaging pressure seals
Check: Pressure test entire piping network at 1.5x maximum working pressure (150 bar minimum for 100 bar systems); inspect water supply tank interior annually for sediment/rust accumulation; flush system annually; drain and refill water tank yearly; verify air passage from nozzles is unobstructed

Typ-universelle Inspektionspunkte fuer Fixed Fire Suppression (verifiziert, 2026-06).

Manufacturer Datasheet

Datasheet

Water-Jet Drive Nozzle ✓ verified

Application

Specialized nozzle with water-jet propulsion for enhanced mist generation in specific marine and industrial applications

Common Failures & Inspection Points

Area: Nozzle clogging and blockade from mineral deposits, biofilm, or sediment accumulation preventing proper water mist generation
Check: Visually inspect nozzles for blockages; use patented Ultra Fog Nozzle Test Tool to verify piston function without breaking glass bulbs; conduct laboratory testing of nozzles after 10 years service and every 5 years thereafter
Area: Pump performance degradation including abnormal noise, vibration, and reduced flow capacity indicating internal wear or cavitation damage
Check: Measure discharge pressure against pump characteristic curve; check for unusual operating noise or vibration; verify flow rate capacity (35-50 L/min for P35 model); monitor motor current draw for erratic startup cycles indicating filter blockage
Area: Nitrogen pre-charge loss in accumulator unit reducing system pressure stability and emergency discharge capability during fire event
Check: Verify nitrogen pre-pressure setting (typically 90% of operating pressure for 100 bar systems); test accumulator pressure switch alarm function; inspect for visible corrosion, cracks, or leakage in accumulator body; calibrate all pressure gauges annually
Area: Filter clogging at inlet (25µm stage) or discharge (100µm stage) causing pump short-cycling, pressure loss, or nozzle blockade formation
Check: Document filter cleanliness condition; measure pressure differential across filters (high differential indicates clogging); perform visual inspection of inlet and outlet filter elements; clean or replace filters after system operation or annually minimum; verify dual 25µm tank filters are present and functional
Area: Piping corrosion, sediment deposits, and internal rust scale generating blockages in distribution network or damaging pressure seals
Check: Pressure test entire piping network at 1.5x maximum working pressure (150 bar minimum for 100 bar systems); inspect water supply tank interior annually for sediment/rust accumulation; flush system annually; drain and refill water tank yearly; verify air passage from nozzles is unobstructed

Typ-universelle Inspektionspunkte fuer Fixed Fire Suppression (verifiziert, 2026-06).

Manufacturer Datasheet

Datasheet

Foam Open Nozzle ✓ verified

Application

Specialized nozzle variant for applications requiring foam-compatible discharge or expanded coverage patterns

Common Failures & Inspection Points

Area: Nozzle clogging and blockade from mineral deposits, biofilm, or sediment accumulation preventing proper water mist generation
Check: Visually inspect nozzles for blockages; use patented Ultra Fog Nozzle Test Tool to verify piston function without breaking glass bulbs; conduct laboratory testing of nozzles after 10 years service and every 5 years thereafter
Area: Pump performance degradation including abnormal noise, vibration, and reduced flow capacity indicating internal wear or cavitation damage
Check: Measure discharge pressure against pump characteristic curve; check for unusual operating noise or vibration; verify flow rate capacity (35-50 L/min for P35 model); monitor motor current draw for erratic startup cycles indicating filter blockage
Area: Nitrogen pre-charge loss in accumulator unit reducing system pressure stability and emergency discharge capability during fire event
Check: Verify nitrogen pre-pressure setting (typically 90% of operating pressure for 100 bar systems); test accumulator pressure switch alarm function; inspect for visible corrosion, cracks, or leakage in accumulator body; calibrate all pressure gauges annually
Area: Filter clogging at inlet (25µm stage) or discharge (100µm stage) causing pump short-cycling, pressure loss, or nozzle blockade formation
Check: Document filter cleanliness condition; measure pressure differential across filters (high differential indicates clogging); perform visual inspection of inlet and outlet filter elements; clean or replace filters after system operation or annually minimum; verify dual 25µm tank filters are present and functional
Area: Piping corrosion, sediment deposits, and internal rust scale generating blockages in distribution network or damaging pressure seals
Check: Pressure test entire piping network at 1.5x maximum working pressure (150 bar minimum for 100 bar systems); inspect water supply tank interior annually for sediment/rust accumulation; flush system annually; drain and refill water tank yearly; verify air passage from nozzles is unobstructed

Typ-universelle Inspektionspunkte fuer Fixed Fire Suppression (verifiziert, 2026-06).

Manufacturer Datasheet

Datasheet

Danfoss SEM-SAFE

4 ✓ 4 verified

SEM-SAFE High-Pressure Water Mist Pump Unit ✓ verified

Application

Water mist fire suppression systems for buildings, marine, infrastructure

Common Failures & Inspection Points

Area: No public model designation numbering system
Check: Verify if Danfoss provides SKU/model codes for SEM-SAFE systems - manufacturer appears to use component-based naming only
Area: Limited component specifications publicly available
Check: Request complete technical datasheets from manufacturer - official PDFs frequently return access errors or are binary/encrypted
Area: Nozzle model variants not documented in public catalog
Check: Contact Danfoss Fire Safety Customer Center (firesafety.customer@danfoss.com) for comprehensive nozzle lineup with pressure/K-factor specifications
Area: System ownership transition (Siemens acquisition Dec 2024)
Check: Verify if product naming/numbering will change under Siemens ownership - legal merger into Siemens A/S planned for July 2025
Area: Design manual and user manuals not consistently accessible
Check: Obtain directly from manufacturer: Design Manual FM Data Center (2018 Rev 5), End User Manual Revision 4 - may require purchase or direct contact

Typ-universelle Inspektionspunkte fuer Fixed Fire Suppression (verifiziert, 2026-06).

[08.08.2026] Datenblattlink entfernt (nicht erreichbar): https://semsafe.danfoss.com/media/land-unit-4-pumps/

Datasheet

SEM-SAFE CEN Nozzle ✓ verified

Application

High-pressure water mist nozzles for general fire protection per CEN TS 14972

Common Failures & Inspection Points

Area: No public model designation numbering system
Check: Verify if Danfoss provides SKU/model codes for SEM-SAFE systems - manufacturer appears to use component-based naming only
Area: Limited component specifications publicly available
Check: Request complete technical datasheets from manufacturer - official PDFs frequently return access errors or are binary/encrypted
Area: Nozzle model variants not documented in public catalog
Check: Contact Danfoss Fire Safety Customer Center (firesafety.customer@danfoss.com) for comprehensive nozzle lineup with pressure/K-factor specifications
Area: System ownership transition (Siemens acquisition Dec 2024)
Check: Verify if product naming/numbering will change under Siemens ownership - legal merger into Siemens A/S planned for July 2025
Area: Design manual and user manuals not consistently accessible
Check: Obtain directly from manufacturer: Design Manual FM Data Center (2018 Rev 5), End User Manual Revision 4 - may require purchase or direct contact

Typ-universelle Inspektionspunkte fuer Fixed Fire Suppression (verifiziert, 2026-06).

[08.08.2026] Datenblattlink entfernt (nicht erreichbar): https://semsafe.danfoss.com/media/cen-nozzle-2/

Datasheet

SEM-SAFE Hotel Nozzle ✓ verified

Application

Application-specific water mist nozzle for hotel fire protection

Common Failures & Inspection Points

Area: No public model designation numbering system
Check: Verify if Danfoss provides SKU/model codes for SEM-SAFE systems - manufacturer appears to use component-based naming only
Area: Limited component specifications publicly available
Check: Request complete technical datasheets from manufacturer - official PDFs frequently return access errors or are binary/encrypted
Area: Nozzle model variants not documented in public catalog
Check: Contact Danfoss Fire Safety Customer Center (firesafety.customer@danfoss.com) for comprehensive nozzle lineup with pressure/K-factor specifications
Area: System ownership transition (Siemens acquisition Dec 2024)
Check: Verify if product naming/numbering will change under Siemens ownership - legal merger into Siemens A/S planned for July 2025
Area: Design manual and user manuals not consistently accessible
Check: Obtain directly from manufacturer: Design Manual FM Data Center (2018 Rev 5), End User Manual Revision 4 - may require purchase or direct contact

Typ-universelle Inspektionspunkte fuer Fixed Fire Suppression (verifiziert, 2026-06).

Manufacturer Datasheet

Datasheet

SEM-SAFE Car Park Nozzle (Upright) ✓ verified

Application

Upright water mist nozzle specifically designed for parking facility fire protection

Common Failures & Inspection Points

Area: No public model designation numbering system
Check: Verify if Danfoss provides SKU/model codes for SEM-SAFE systems - manufacturer appears to use component-based naming only
Area: Limited component specifications publicly available
Check: Request complete technical datasheets from manufacturer - official PDFs frequently return access errors or are binary/encrypted
Area: Nozzle model variants not documented in public catalog
Check: Contact Danfoss Fire Safety Customer Center (firesafety.customer@danfoss.com) for comprehensive nozzle lineup with pressure/K-factor specifications
Area: System ownership transition (Siemens acquisition Dec 2024)
Check: Verify if product naming/numbering will change under Siemens ownership - legal merger into Siemens A/S planned for July 2025
Area: Design manual and user manuals not consistently accessible
Check: Obtain directly from manufacturer: Design Manual FM Data Center (2018 Rev 5), End User Manual Revision 4 - may require purchase or direct contact

Typ-universelle Inspektionspunkte fuer Fixed Fire Suppression (verifiziert, 2026-06).

[08.08.2026] Datenblattlink entfernt (nicht erreichbar): https://semsafe.danfoss.com/

Datasheet

Marioff / Carrier

HI-FOG 1000 Machinery Space unverified

Application

Machinery Space

IMO Compliant

Common Failures & Inspection Points

Closed, seized or incorrectly positioned isolation valves can block discharge, detected during functional checks or by valve-position indication
Loss of agent, water or system pressure through leakage can reduce readiness, seen as low-pressure indication or inventory discrepancy
Blocked or damaged nozzles and distribution piping can impair coverage, found by inspection or flow testing
Release-circuit, solenoid or control-panel faults can prevent actuation, seen as failed tests or system alarms
Corrosion, contamination or mechanical damage to storage and piping components can compromise integrity, found during inspection or pressure-related checks

Service: Inspect agent or water supply, release controls, alarms, valves, distribution piping, nozzles and protected-space interfaces. Confirm remote and local release arrangements, shutdown interlocks and system status indications are intact. Test intervals, agent quantities and pressure limits not provided in the source entry must be taken from the approved fire-control plan and manufacturer documentation.

Spare Parts: Onboard spares should follow the approved system list and may include release-device consumables, seals, valve service items, nozzles, fuses and control-panel components.

Use Cases: Used as fixed fire protection in machinery spaces, cargo spaces, galleys and other designated shipboard fire-risk areas.

Datasheet

HI-FOG 1000 Accommodation unverified

Application

Accommodation

IMO Compliant

Common Failures & Inspection Points

Closed, seized or incorrectly positioned isolation valves can block discharge, detected during functional checks or by valve-position indication
Loss of agent, water or system pressure through leakage can reduce readiness, seen as low-pressure indication or inventory discrepancy
Blocked or damaged nozzles and distribution piping can impair coverage, found by inspection or flow testing
Release-circuit, solenoid or control-panel faults can prevent actuation, seen as failed tests or system alarms
Corrosion, contamination or mechanical damage to storage and piping components can compromise integrity, found during inspection or pressure-related checks

Spare Parts: Onboard spares should follow the approved system list and may include release-device consumables, seals, valve service items, nozzles, fuses and control-panel components.

Use Cases: Used as fixed fire protection in machinery spaces, cargo spaces, galleys and other designated shipboard fire-risk areas.

Datasheet

HI-FOG 1000 Car Deck unverified

Application

Car Deck

IMO Compliant

Common Failures & Inspection Points

Loss of extinguishing-agent inventory or pressure caused by leakage or poor maintenance, resulting in low-level or low-pressure indication and reduced readiness
Nozzle, pipe or distribution blockage caused by corrosion, paint, deposits or mechanical damage, resulting in restricted discharge
Release-valve or actuator failure caused by corrosion, sticking or control faults, resulting in inability to discharge the system when commanded
Detection, interlock or alarm failure caused by wiring, sensor or panel faults, resulting in missing alarms or inhibited release sequence
Pump, cylinder or pressure-regulating equipment deterioration caused by wear, corrosion or electrical faults, resulting in inadequate discharge performance

Service: Inspect agent storage, pumps or cylinders, release controls, section valves, nozzles, piping and alarms in accordance with the approved maintenance plan. Keep nozzles and discharge openings clear of paint, cargo or modifications. Function-test release circuits and interlocks using the authorized non-discharge test method. Check cylinder or tank condition, pressure indication and securing arrangements and record any isolated section. Verify protected-space shutdowns and alarms where required. Refer to the manufacturer documentation for the exact figure for test intervals, charge quantities, pressures and acceptance criteria.

Spare Parts: Keep approved valve service kits, nozzles, seals, actuators, release components, fuses and manufacturer-recommended pump or pressure-regulating parts. Extinguishing-agent and cylinder components must remain compatible with the certified system.

Use Cases: It is used for fixed fire protection on merchant ships, passenger vessels, offshore units or other vessel types where this equipment category is fitted.

Datasheet

HI-FOG 1000 Cargo Hold unverified

Application

Cargo Hold

IMO Compliant

Common Failures & Inspection Points

Closed, seized or incorrectly positioned isolation valves can block discharge, detected during functional checks or by valve-position indication
Loss of agent, water or system pressure through leakage can reduce readiness, seen as low-pressure indication or inventory discrepancy
Blocked or damaged nozzles and distribution piping can impair coverage, found by inspection or flow testing
Release-circuit, solenoid or control-panel faults can prevent actuation, seen as failed tests or system alarms
Corrosion, contamination or mechanical damage to storage and piping components can compromise integrity, found during inspection or pressure-related checks

Spare Parts: Onboard spares should follow the approved system list and may include release-device consumables, seals, valve service items, nozzles, fuses and control-panel components.

Use Cases: Used as fixed fire protection in machinery spaces, cargo spaces, galleys and other designated shipboard fire-risk areas.

Datasheet

Marioff / Carrier HI-FOG 1000 Turbine Enclosure

HI-FOG 1000 Turbine Enclosure unverified

Application

Turbine Enclosure

IMO Compliant

Common Failures & Inspection Points

Closed, seized or incorrectly positioned isolation valves can block discharge, detected during functional checks or by valve-position indication
Loss of agent, water or system pressure through leakage can reduce readiness, seen as low-pressure indication or inventory discrepancy
Blocked or damaged nozzles and distribution piping can impair coverage, found by inspection or flow testing
Release-circuit, solenoid or control-panel faults can prevent actuation, seen as failed tests or system alarms
Corrosion, contamination or mechanical damage to storage and piping components can compromise integrity, found during inspection or pressure-related checks

Spare Parts: Onboard spares should follow the approved system list and may include release-device consumables, seals, valve service items, nozzles, fuses and control-panel components.

Use Cases: Used as fixed fire protection in machinery spaces, cargo spaces, galleys and other designated shipboard fire-risk areas.

Datasheet

HI-FOG 2000 Machinery Space unverified

Application

Machinery Space

IMO Compliant

Common Failures & Inspection Points

Closed, seized or incorrectly positioned isolation valves can block discharge, detected during functional checks or by valve-position indication
Loss of agent, water or system pressure through leakage can reduce readiness, seen as low-pressure indication or inventory discrepancy
Blocked or damaged nozzles and distribution piping can impair coverage, found by inspection or flow testing
Release-circuit, solenoid or control-panel faults can prevent actuation, seen as failed tests or system alarms
Corrosion, contamination or mechanical damage to storage and piping components can compromise integrity, found during inspection or pressure-related checks

Spare Parts: Onboard spares should follow the approved system list and may include release-device consumables, seals, valve service items, nozzles, fuses and control-panel components.

Use Cases: Used as fixed fire protection in machinery spaces, cargo spaces, galleys and other designated shipboard fire-risk areas.

Datasheet

HI-FOG 2000 Accommodation unverified

Application

Accommodation

IMO Compliant

Common Failures & Inspection Points

Closed, seized or incorrectly positioned isolation valves can block discharge, detected during functional checks or by valve-position indication
Loss of agent, water or system pressure through leakage can reduce readiness, seen as low-pressure indication or inventory discrepancy
Blocked or damaged nozzles and distribution piping can impair coverage, found by inspection or flow testing
Release-circuit, solenoid or control-panel faults can prevent actuation, seen as failed tests or system alarms
Corrosion, contamination or mechanical damage to storage and piping components can compromise integrity, found during inspection or pressure-related checks

Spare Parts: Onboard spares should follow the approved system list and may include release-device consumables, seals, valve service items, nozzles, fuses and control-panel components.

Use Cases: Used as fixed fire protection in machinery spaces, cargo spaces, galleys and other designated shipboard fire-risk areas.

Datasheet

HI-FOG 2000 Car Deck unverified

Application

Car Deck

IMO Compliant

Common Failures & Inspection Points

Loss of extinguishing-agent inventory or pressure caused by leakage or poor maintenance, resulting in low-level or low-pressure indication and reduced readiness
Nozzle, pipe or distribution blockage caused by corrosion, paint, deposits or mechanical damage, resulting in restricted discharge
Release-valve or actuator failure caused by corrosion, sticking or control faults, resulting in inability to discharge the system when commanded
Detection, interlock or alarm failure caused by wiring, sensor or panel faults, resulting in missing alarms or inhibited release sequence
Pump, cylinder or pressure-regulating equipment deterioration caused by wear, corrosion or electrical faults, resulting in inadequate discharge performance

Use Cases: It is used for fixed fire protection on merchant ships, passenger vessels, offshore units or other vessel types where this equipment category is fitted.

Datasheet

HI-FOG 2000 Cargo Hold unverified

Application

Cargo Hold

IMO Compliant

Common Failures & Inspection Points

Closed, seized or incorrectly positioned isolation valves can block discharge, detected during functional checks or by valve-position indication
Loss of agent, water or system pressure through leakage can reduce readiness, seen as low-pressure indication or inventory discrepancy
Blocked or damaged nozzles and distribution piping can impair coverage, found by inspection or flow testing
Release-circuit, solenoid or control-panel faults can prevent actuation, seen as failed tests or system alarms
Corrosion, contamination or mechanical damage to storage and piping components can compromise integrity, found during inspection or pressure-related checks

Spare Parts: Onboard spares should follow the approved system list and may include release-device consumables, seals, valve service items, nozzles, fuses and control-panel components.

Use Cases: Used as fixed fire protection in machinery spaces, cargo spaces, galleys and other designated shipboard fire-risk areas.

Datasheet

Marioff / Carrier HI-FOG 2000 Turbine Enclosure

HI-FOG 2000 Turbine Enclosure unverified

Application

Turbine Enclosure

IMO Compliant

Common Failures & Inspection Points

Closed, seized or incorrectly positioned isolation valves can block discharge, detected during functional checks or by valve-position indication
Loss of agent, water or system pressure through leakage can reduce readiness, seen as low-pressure indication or inventory discrepancy
Blocked or damaged nozzles and distribution piping can impair coverage, found by inspection or flow testing
Release-circuit, solenoid or control-panel faults can prevent actuation, seen as failed tests or system alarms
Corrosion, contamination or mechanical damage to storage and piping components can compromise integrity, found during inspection or pressure-related checks

Spare Parts: Onboard spares should follow the approved system list and may include release-device consumables, seals, valve service items, nozzles, fuses and control-panel components.

Use Cases: Used as fixed fire protection in machinery spaces, cargo spaces, galleys and other designated shipboard fire-risk areas.

Datasheet

HI-FOG 4000 Machinery Space unverified

Application

Machinery Space

IMO Compliant

Common Failures & Inspection Points

Closed, seized or incorrectly positioned isolation valves can block discharge, detected during functional checks or by valve-position indication
Loss of agent, water or system pressure through leakage can reduce readiness, seen as low-pressure indication or inventory discrepancy
Blocked or damaged nozzles and distribution piping can impair coverage, found by inspection or flow testing
Release-circuit, solenoid or control-panel faults can prevent actuation, seen as failed tests or system alarms
Corrosion, contamination or mechanical damage to storage and piping components can compromise integrity, found during inspection or pressure-related checks

Spare Parts: Onboard spares should follow the approved system list and may include release-device consumables, seals, valve service items, nozzles, fuses and control-panel components.

Use Cases: Used as fixed fire protection in machinery spaces, cargo spaces, galleys and other designated shipboard fire-risk areas.

Datasheet

HI-FOG 4000 Accommodation unverified

Application

Accommodation

IMO Compliant

Common Failures & Inspection Points

Closed, seized or incorrectly positioned isolation valves can block discharge, detected during functional checks or by valve-position indication
Loss of agent, water or system pressure through leakage can reduce readiness, seen as low-pressure indication or inventory discrepancy
Blocked or damaged nozzles and distribution piping can impair coverage, found by inspection or flow testing
Release-circuit, solenoid or control-panel faults can prevent actuation, seen as failed tests or system alarms
Corrosion, contamination or mechanical damage to storage and piping components can compromise integrity, found during inspection or pressure-related checks

Spare Parts: Onboard spares should follow the approved system list and may include release-device consumables, seals, valve service items, nozzles, fuses and control-panel components.

Use Cases: Used as fixed fire protection in machinery spaces, cargo spaces, galleys and other designated shipboard fire-risk areas.

Datasheet

HI-FOG 4000 Car Deck unverified

Application

Car Deck

IMO Compliant

Common Failures & Inspection Points

Loss of extinguishing-agent inventory or pressure caused by leakage or poor maintenance, resulting in low-level or low-pressure indication and reduced readiness
Nozzle, pipe or distribution blockage caused by corrosion, paint, deposits or mechanical damage, resulting in restricted discharge
Release-valve or actuator failure caused by corrosion, sticking or control faults, resulting in inability to discharge the system when commanded
Detection, interlock or alarm failure caused by wiring, sensor or panel faults, resulting in missing alarms or inhibited release sequence
Pump, cylinder or pressure-regulating equipment deterioration caused by wear, corrosion or electrical faults, resulting in inadequate discharge performance

Use Cases: It is used for fixed fire protection on merchant ships, passenger vessels, offshore units or other vessel types where this equipment category is fitted.

Datasheet

HI-FOG 4000 Cargo Hold unverified

Application

Cargo Hold

IMO Compliant

Common Failures & Inspection Points

Closed, seized or incorrectly positioned isolation valves can block discharge, detected during functional checks or by valve-position indication
Loss of agent, water or system pressure through leakage can reduce readiness, seen as low-pressure indication or inventory discrepancy
Blocked or damaged nozzles and distribution piping can impair coverage, found by inspection or flow testing
Release-circuit, solenoid or control-panel faults can prevent actuation, seen as failed tests or system alarms
Corrosion, contamination or mechanical damage to storage and piping components can compromise integrity, found during inspection or pressure-related checks

Spare Parts: Onboard spares should follow the approved system list and may include release-device consumables, seals, valve service items, nozzles, fuses and control-panel components.

Use Cases: Used as fixed fire protection in machinery spaces, cargo spaces, galleys and other designated shipboard fire-risk areas.

Datasheet

Marioff / Carrier HI-FOG 4000 Turbine Enclosure

HI-FOG 4000 Turbine Enclosure unverified

Application

Turbine Enclosure

IMO Compliant

Common Failures & Inspection Points

Closed, seized or incorrectly positioned isolation valves can block discharge, detected during functional checks or by valve-position indication
Loss of agent, water or system pressure through leakage can reduce readiness, seen as low-pressure indication or inventory discrepancy
Blocked or damaged nozzles and distribution piping can impair coverage, found by inspection or flow testing
Release-circuit, solenoid or control-panel faults can prevent actuation, seen as failed tests or system alarms
Corrosion, contamination or mechanical damage to storage and piping components can compromise integrity, found during inspection or pressure-related checks

Spare Parts: Onboard spares should follow the approved system list and may include release-device consumables, seals, valve service items, nozzles, fuses and control-panel components.

Use Cases: Used as fixed fire protection in machinery spaces, cargo spaces, galleys and other designated shipboard fire-risk areas.

Datasheet

HI-FOG GPU 1500 unverified

Type

Gas Pump Unit

IMO Compliant

Common Failures & Inspection Points

Blocked nozzles or piping from contamination/corrosion, typically indicated by poor test flow or impaired coverage
Pump, cylinder or pressure loss, typically indicated by low pressure, failed readiness check or discharge alarm
Valve/actuator sticking, typically indicated by section fails to open or close during testing
Detection/release control fault, typically indicated by failed automatic/manual release or incorrect indication
Leakage/corrosion in distribution piping, typically indicated by pressure loss, visible leaks or failed integrity test

Service: Inspect agent/pump readiness, valves, nozzles, piping, release controls, alarms and shutdown interlocks; flow, pressure and discharge tests must follow approved fire-system procedures and exact manufacturer criteria.

Spare Parts: Keep nozzle caps/filters, valve and actuator seal kits, release solenoids, pressure switches, detector/interface components and approved pump service parts.

Use Cases: Used in machinery spaces, RoRo decks, accommodation/technical compartments and special hazard areas according to the installed fire-extinguishing system. This entry applies specifically to the Water Mist System (Hi-Fog) variant identified as Marioff / Carrier HI-FOG GPU 1500.

Datasheet

HI-FOG GPU 2000 unverified

Type

Gas Pump Unit

IMO Compliant

Common Failures & Inspection Points

Blocked nozzles or piping from contamination/corrosion, typically indicated by poor test flow or impaired coverage
Pump, cylinder or pressure loss, typically indicated by low pressure, failed readiness check or discharge alarm
Valve/actuator sticking, typically indicated by section fails to open or close during testing
Detection/release control fault, typically indicated by failed automatic/manual release or incorrect indication
Leakage/corrosion in distribution piping, typically indicated by pressure loss, visible leaks or failed integrity test

Spare Parts: Keep nozzle caps/filters, valve and actuator seal kits, release solenoids, pressure switches, detector/interface components and approved pump service parts.

Datasheet

HI-FOG GPU 3000 unverified

Type

Gas Pump Unit

IMO Compliant

Common Failures & Inspection Points

Blocked nozzles or piping from contamination/corrosion, typically indicated by poor test flow or impaired coverage
Pump, cylinder or pressure loss, typically indicated by low pressure, failed readiness check or discharge alarm
Valve/actuator sticking, typically indicated by section fails to open or close during testing
Detection/release control fault, typically indicated by failed automatic/manual release or incorrect indication
Leakage/corrosion in distribution piping, typically indicated by pressure loss, visible leaks or failed integrity test

Spare Parts: Keep nozzle caps/filters, valve and actuator seal kits, release solenoids, pressure switches, detector/interface components and approved pump service parts.

Datasheet

HI-FOG GPU 4000 unverified

Type

Gas Pump Unit

IMO Compliant

Common Failures & Inspection Points

Blocked nozzles or piping from contamination/corrosion, typically indicated by poor test flow or impaired coverage
Pump, cylinder or pressure loss, typically indicated by low pressure, failed readiness check or discharge alarm
Valve/actuator sticking, typically indicated by section fails to open or close during testing
Detection/release control fault, typically indicated by failed automatic/manual release or incorrect indication
Leakage/corrosion in distribution piping, typically indicated by pressure loss, visible leaks or failed integrity test

Spare Parts: Keep nozzle caps/filters, valve and actuator seal kits, release solenoids, pressure switches, detector/interface components and approved pump service parts.

Datasheet

Marioff WM Machinery Space-B unverified

Application

Machinery Space

Common Failures & Inspection Points

Closed, seized or incorrectly positioned isolation valves can block discharge, detected during functional checks or by valve-position indication
Loss of agent, water or system pressure through leakage can reduce readiness, seen as low-pressure indication or inventory discrepancy
Blocked or damaged nozzles and distribution piping can impair coverage, found by inspection or flow testing
Release-circuit, solenoid or control-panel faults can prevent actuation, seen as failed tests or system alarms
Corrosion, contamination or mechanical damage to storage and piping components can compromise integrity, found during inspection or pressure-related checks

Spare Parts: Onboard spares should follow the approved system list and may include release-device consumables, seals, valve service items, nozzles, fuses and control-panel components.

Use Cases: Used as fixed fire protection in machinery spaces, cargo spaces, galleys and other designated shipboard fire-risk areas.

Datasheet

Marioff WM Accommodation-B unverified

Application

Accommodation

Common Failures & Inspection Points

Closed, seized or incorrectly positioned isolation valves can block discharge, detected during functional checks or by valve-position indication
Loss of agent, water or system pressure through leakage can reduce readiness, seen as low-pressure indication or inventory discrepancy
Blocked or damaged nozzles and distribution piping can impair coverage, found by inspection or flow testing
Release-circuit, solenoid or control-panel faults can prevent actuation, seen as failed tests or system alarms
Corrosion, contamination or mechanical damage to storage and piping components can compromise integrity, found during inspection or pressure-related checks

Spare Parts: Onboard spares should follow the approved system list and may include release-device consumables, seals, valve service items, nozzles, fuses and control-panel components.

Use Cases: Used as fixed fire protection in machinery spaces, cargo spaces, galleys and other designated shipboard fire-risk areas.

Datasheet

Marioff WM Car Deck-B unverified

Application

Car Deck

Common Failures & Inspection Points

Loss of extinguishing-agent inventory or pressure caused by leakage or poor maintenance, resulting in low-level or low-pressure indication and reduced readiness
Nozzle, pipe or distribution blockage caused by corrosion, paint, deposits or mechanical damage, resulting in restricted discharge
Release-valve or actuator failure caused by corrosion, sticking or control faults, resulting in inability to discharge the system when commanded
Detection, interlock or alarm failure caused by wiring, sensor or panel faults, resulting in missing alarms or inhibited release sequence
Pump, cylinder or pressure-regulating equipment deterioration caused by wear, corrosion or electrical faults, resulting in inadequate discharge performance

Use Cases: It is used for fixed fire protection on merchant ships, passenger vessels, offshore units or other vessel types where this equipment category is fitted.

Datasheet

Marioff WM Cargo Hold-B unverified

Application

Cargo Hold

Common Failures & Inspection Points

Closed, seized or incorrectly positioned isolation valves can block discharge, detected during functional checks or by valve-position indication
Loss of agent, water or system pressure through leakage can reduce readiness, seen as low-pressure indication or inventory discrepancy
Blocked or damaged nozzles and distribution piping can impair coverage, found by inspection or flow testing
Release-circuit, solenoid or control-panel faults can prevent actuation, seen as failed tests or system alarms
Corrosion, contamination or mechanical damage to storage and piping components can compromise integrity, found during inspection or pressure-related checks

Spare Parts: Onboard spares should follow the approved system list and may include release-device consumables, seals, valve service items, nozzles, fuses and control-panel components.

Use Cases: Used as fixed fire protection in machinery spaces, cargo spaces, galleys and other designated shipboard fire-risk areas.

Datasheet

Marioff WM Turbine-B unverified

Application

Turbine

Common Failures & Inspection Points

Loss of extinguishing-agent inventory or pressure caused by leakage or poor maintenance, resulting in low-level or low-pressure indication and reduced readiness
Nozzle, pipe or distribution blockage caused by corrosion, paint, deposits or mechanical damage, resulting in restricted discharge
Release-valve or actuator failure caused by corrosion, sticking or control faults, resulting in inability to discharge the system when commanded
Detection, interlock or alarm failure caused by wiring, sensor or panel faults, resulting in missing alarms or inhibited release sequence
Pump, cylinder or pressure-regulating equipment deterioration caused by wear, corrosion or electrical faults, resulting in inadequate discharge performance

Use Cases: It is used for fixed fire protection on merchant ships, passenger vessels, offshore units or other vessel types where this equipment category is fitted.

Datasheet

Marioff WM Galley-B unverified

Application

Galley

Common Failures & Inspection Points

Loss of extinguishing-agent inventory or pressure caused by leakage or poor maintenance, resulting in low-level or low-pressure indication and reduced readiness
Nozzle, pipe or distribution blockage caused by corrosion, paint, deposits or mechanical damage, resulting in restricted discharge
Release-valve or actuator failure caused by corrosion, sticking or control faults, resulting in inability to discharge the system when commanded
Detection, interlock or alarm failure caused by wiring, sensor or panel faults, resulting in missing alarms or inhibited release sequence
Pump, cylinder or pressure-regulating equipment deterioration caused by wear, corrosion or electrical faults, resulting in inadequate discharge performance

Use Cases: It is used for fixed fire protection on merchant ships, passenger vessels, offshore units or other vessel types where this equipment category is fitted.

Datasheet

Marioff WM Laundry-B unverified

Application

Laundry

Common Failures & Inspection Points

Loss of extinguishing-agent inventory or pressure caused by leakage or poor maintenance, resulting in low-level or low-pressure indication and reduced readiness
Nozzle, pipe or distribution blockage caused by corrosion, paint, deposits or mechanical damage, resulting in restricted discharge
Release-valve or actuator failure caused by corrosion, sticking or control faults, resulting in inability to discharge the system when commanded
Detection, interlock or alarm failure caused by wiring, sensor or panel faults, resulting in missing alarms or inhibited release sequence
Pump, cylinder or pressure-regulating equipment deterioration caused by wear, corrosion or electrical faults, resulting in inadequate discharge performance

Use Cases: It is used for fixed fire protection on merchant ships, passenger vessels, offshore units or other vessel types where this equipment category is fitted.

Datasheet

Marioff WM Paint Store-B unverified

Application

Paint Store

Common Failures & Inspection Points

Closed, seized or incorrectly positioned isolation valves can block discharge, detected during functional checks or by valve-position indication
Loss of agent, water or system pressure through leakage can reduce readiness, seen as low-pressure indication or inventory discrepancy
Blocked or damaged nozzles and distribution piping can impair coverage, found by inspection or flow testing
Release-circuit, solenoid or control-panel faults can prevent actuation, seen as failed tests or system alarms
Corrosion, contamination or mechanical damage to storage and piping components can compromise integrity, found during inspection or pressure-related checks

Spare Parts: Onboard spares should follow the approved system list and may include release-device consumables, seals, valve service items, nozzles, fuses and control-panel components.

Use Cases: Used as fixed fire protection in machinery spaces, cargo spaces, galleys and other designated shipboard fire-risk areas.

Datasheet

Marioff WM Boiler Room-B unverified

Application

Boiler Room

Common Failures & Inspection Points

Closed, seized or incorrectly positioned isolation valves can block discharge, detected during functional checks or by valve-position indication
Loss of agent, water or system pressure through leakage can reduce readiness, seen as low-pressure indication or inventory discrepancy
Blocked or damaged nozzles and distribution piping can impair coverage, found by inspection or flow testing
Release-circuit, solenoid or control-panel faults can prevent actuation, seen as failed tests or system alarms
Corrosion, contamination or mechanical damage to storage and piping components can compromise integrity, found during inspection or pressure-related checks

Spare Parts: Onboard spares should follow the approved system list and may include release-device consumables, seals, valve service items, nozzles, fuses and control-panel components.

Use Cases: Used as fixed fire protection in machinery spaces, cargo spaces, galleys and other designated shipboard fire-risk areas.

Datasheet

Marioff WM Pump Room-B unverified

Application

Pump Room

Common Failures & Inspection Points

Closed, seized or incorrectly positioned isolation valves can block discharge, detected during functional checks or by valve-position indication
Loss of agent, water or system pressure through leakage can reduce readiness, seen as low-pressure indication or inventory discrepancy
Blocked or damaged nozzles and distribution piping can impair coverage, found by inspection or flow testing
Release-circuit, solenoid or control-panel faults can prevent actuation, seen as failed tests or system alarms
Corrosion, contamination or mechanical damage to storage and piping components can compromise integrity, found during inspection or pressure-related checks

Spare Parts: Onboard spares should follow the approved system list and may include release-device consumables, seals, valve service items, nozzles, fuses and control-panel components.

Use Cases: Used as fixed fire protection in machinery spaces, cargo spaces, galleys and other designated shipboard fire-risk areas.

Datasheet

Marioff WM Generator Room-B unverified

Application

Generator Room

Common Failures & Inspection Points

Closed, seized or incorrectly positioned isolation valves can block discharge, detected during functional checks or by valve-position indication
Loss of agent, water or system pressure through leakage can reduce readiness, seen as low-pressure indication or inventory discrepancy
Blocked or damaged nozzles and distribution piping can impair coverage, found by inspection or flow testing
Release-circuit, solenoid or control-panel faults can prevent actuation, seen as failed tests or system alarms
Corrosion, contamination or mechanical damage to storage and piping components can compromise integrity, found during inspection or pressure-related checks

Spare Parts: Onboard spares should follow the approved system list and may include release-device consumables, seals, valve service items, nozzles, fuses and control-panel components.

Use Cases: Used as fixed fire protection in machinery spaces, cargo spaces, galleys and other designated shipboard fire-risk areas.

Datasheet

Marioff WM Switchboard Room-B unverified

Application

Switchboard Room

Common Failures & Inspection Points

Closed, seized or incorrectly positioned isolation valves can block discharge, detected during functional checks or by valve-position indication
Loss of agent, water or system pressure through leakage can reduce readiness, seen as low-pressure indication or inventory discrepancy
Blocked or damaged nozzles and distribution piping can impair coverage, found by inspection or flow testing
Release-circuit, solenoid or control-panel faults can prevent actuation, seen as failed tests or system alarms
Corrosion, contamination or mechanical damage to storage and piping components can compromise integrity, found during inspection or pressure-related checks

Spare Parts: Onboard spares should follow the approved system list and may include release-device consumables, seals, valve service items, nozzles, fuses and control-panel components.

Use Cases: Used as fixed fire protection in machinery spaces, cargo spaces, galleys and other designated shipboard fire-risk areas.

Datasheet

Danfoss Semco

Danfoss SemcoSafe Water Mist System

Modular zone coverage · Fire Suppression / Detection · high-pressure water mist (Hi-Fog)

Common Failures & Inspection Points

Loss of extinguishing medium, pressure or water supply reduces available firefighting capacity
Valve, hose, nozzle, release or pump faults prevent correct discharge
Corrosion, seal deterioration or mechanical damage causes leakage or unreliable operation
Detection, alarm, fan-stop or shutdown interlock faults create an incomplete or unsafe release sequence
Blocked nozzles, hoses or distribution piping reduce delivery to the fire area

Service: Inspect storage or pumps, valves, hoses, nozzles, piping, release controls, alarms and shutdown interfaces according to the system type. Verify accessibility, seals, markings and protected-space arrangements. Functional tests must follow the approved safety procedure without unintended discharge. Refer to manufacturer, class and statutory documentation for the exact figure for pressure, quantity and acceptance criteria.

Spare Parts: Carry approved valves, seals, hoses, nozzles, release components, pump service parts, alarms, fuses and manufacturer-supported extinguisher or system service items.

Strengths

Very low water consumption compared with conventional sprinkler systems
Fast heat absorption and rapid fire knock‑down, reducing damage to equipment and cargo
Minimal post‑fire cleanup and corrosion risk for machinery spaces
Can be installed in confined or sensitive areas where water damage must be limited
Integrated control panel allows automatic activation from ship‑wide fire detection

Weaknesses

Requires high‑pressure pumps that need regular maintenance and periodic filter changes
System performance can degrade if seawater filters become clogged or corroded
Initial installation cost higher than conventional sprinkler systems
Effectiveness limited on very large open‑deck pool fires where mist dispersion is reduced

Typical Vessels: Tankers (chemical, product)Container shipsBulk carriersCruise liners / passenger ferriesOffshore supply vesselsRo‑Ro and car carriers

Certifications: SOLAS

Decision Guide: Choose if: you need a fire‑suppression system that uses minimal water, provides rapid knock‑down in machinery spaces or cargo areas with sensitive equipment, and you can commit to the required monthly valve tests and six‑monthly filter changes. Avoid if: you cannot guarantee regular maintenance of high‑pressure pumps/filters or the vessel primarily faces large open‑deck fire scenarios where mist dispersion is less effective.

Use Cases: Portable and fixed firefighting on machinery, cargo, accommodation and deck areas.

Datasheet

SEM-SAFE HiPre unverified

Type

Water Mist

Common Failures & Inspection Points

Detector or sensing-element contamination, poisoning or ageing can cause false alarms, slow response or failed functional tests
Battery, power-supply or control-circuit faults caused by ageing, loose wiring or blown protection can lead to trouble alarms or unavailable safety functions
Cylinder pressure loss, leakage or damaged valves where stored media is used can leave the equipment outside ready condition and may be found during inspection or weighing checks
Blocked, corroded or mechanically damaged nozzles, piping, hoses or masks can restrict discharge or breathing flow and show as poor functional test results
Incorrect isolation, expired service status or disturbed release interlocks after maintenance can prevent normal arming and create panel faults or failed readiness checks

Service: Check physical condition, accessibility, labels and service status, then verify approved tests of detectors, alarms, release circuits or breathing components as applicable. Inspect cylinders, hoses, nozzles, masks, wiring and interlocks without discharging or altering safety systems outside the approved procedure. Use maker, class and statutory documentation for exact inspection and acceptance criteria.

Spare Parts: Hold only approved safety-system spares such as detector heads, filters or sensor caps, fuses, batteries where user-replaceable, seals, hoses, masks, nozzles and control modules according to the vessel's certified arrangement.

Use Cases: Machinery spaces, accommodation, cargo areas, enclosed spaces and emergency-response stations on merchant, passenger, tanker and offshore vessels.

Datasheet

SEM-SAFE LoPre unverified

Type

Water Mist

Common Failures & Inspection Points

Detector or sensing-element contamination, poisoning or ageing can cause false alarms, slow response or failed functional tests
Battery, power-supply or control-circuit faults caused by ageing, loose wiring or blown protection can lead to trouble alarms or unavailable safety functions
Cylinder pressure loss, leakage or damaged valves where stored media is used can leave the equipment outside ready condition and may be found during inspection or weighing checks
Blocked, corroded or mechanically damaged nozzles, piping, hoses or masks can restrict discharge or breathing flow and show as poor functional test results
Incorrect isolation, expired service status or disturbed release interlocks after maintenance can prevent normal arming and create panel faults or failed readiness checks

Use Cases: Machinery spaces, accommodation, cargo areas, enclosed spaces and emergency-response stations on merchant, passenger, tanker and offshore vessels.

Datasheet

Danfoss Semco WM Machinery Space-B unverified

Application

Machinery Space

Common Failures & Inspection Points

Closed, seized or incorrectly positioned isolation valves can block discharge, detected during functional checks or by valve-position indication
Loss of agent, water or system pressure through leakage can reduce readiness, seen as low-pressure indication or inventory discrepancy
Blocked or damaged nozzles and distribution piping can impair coverage, found by inspection or flow testing
Release-circuit, solenoid or control-panel faults can prevent actuation, seen as failed tests or system alarms
Corrosion, contamination or mechanical damage to storage and piping components can compromise integrity, found during inspection or pressure-related checks

Spare Parts: Onboard spares should follow the approved system list and may include release-device consumables, seals, valve service items, nozzles, fuses and control-panel components.

Use Cases: Used as fixed fire protection in machinery spaces, cargo spaces, galleys and other designated shipboard fire-risk areas.

Datasheet

Danfoss Semco WM Accommodation-B unverified

Application

Accommodation

Common Failures & Inspection Points

Closed, seized or incorrectly positioned isolation valves can block discharge, detected during functional checks or by valve-position indication
Loss of agent, water or system pressure through leakage can reduce readiness, seen as low-pressure indication or inventory discrepancy
Blocked or damaged nozzles and distribution piping can impair coverage, found by inspection or flow testing
Release-circuit, solenoid or control-panel faults can prevent actuation, seen as failed tests or system alarms
Corrosion, contamination or mechanical damage to storage and piping components can compromise integrity, found during inspection or pressure-related checks

Spare Parts: Onboard spares should follow the approved system list and may include release-device consumables, seals, valve service items, nozzles, fuses and control-panel components.

Use Cases: Used as fixed fire protection in machinery spaces, cargo spaces, galleys and other designated shipboard fire-risk areas.

Datasheet

Danfoss Semco WM Car Deck-B unverified

Application

Car Deck

Common Failures & Inspection Points

Closed, seized or incorrectly positioned isolation valves can block discharge, detected during functional checks or by valve-position indication
Loss of agent, water or system pressure through leakage can reduce readiness, seen as low-pressure indication or inventory discrepancy
Blocked or damaged nozzles and distribution piping can impair coverage, found by inspection or flow testing
Release-circuit, solenoid or control-panel faults can prevent actuation, seen as failed tests or system alarms
Corrosion, contamination or mechanical damage to storage and piping components can compromise integrity, found during inspection or pressure-related checks

Spare Parts: Onboard spares should follow the approved system list and may include release-device consumables, seals, valve service items, nozzles, fuses and control-panel components.

Use Cases: Used as fixed fire protection in machinery spaces, cargo spaces, galleys and other designated shipboard fire-risk areas.

Datasheet

Danfoss Semco WM Cargo Hold-B unverified

Application

Cargo Hold

Common Failures & Inspection Points

Closed, seized or incorrectly positioned isolation valves can block discharge, detected during functional checks or by valve-position indication
Loss of agent, water or system pressure through leakage can reduce readiness, seen as low-pressure indication or inventory discrepancy
Blocked or damaged nozzles and distribution piping can impair coverage, found by inspection or flow testing
Release-circuit, solenoid or control-panel faults can prevent actuation, seen as failed tests or system alarms
Corrosion, contamination or mechanical damage to storage and piping components can compromise integrity, found during inspection or pressure-related checks

Spare Parts: Onboard spares should follow the approved system list and may include release-device consumables, seals, valve service items, nozzles, fuses and control-panel components.

Use Cases: Used as fixed fire protection in machinery spaces, cargo spaces, galleys and other designated shipboard fire-risk areas.

Datasheet

Danfoss Semco WM Turbine-B unverified

Application

Turbine

Common Failures & Inspection Points

Loss of extinguishing-agent inventory or pressure caused by leakage or poor maintenance, resulting in low-level or low-pressure indication and reduced readiness
Nozzle, pipe or distribution blockage caused by corrosion, paint, deposits or mechanical damage, resulting in restricted discharge
Release-valve or actuator failure caused by corrosion, sticking or control faults, resulting in inability to discharge the system when commanded
Detection, interlock or alarm failure caused by wiring, sensor or panel faults, resulting in missing alarms or inhibited release sequence
Pump, cylinder or pressure-regulating equipment deterioration caused by wear, corrosion or electrical faults, resulting in inadequate discharge performance

Use Cases: It is used for fixed fire protection on merchant ships, passenger vessels, offshore units or other vessel types where this equipment category is fitted.

Datasheet

Danfoss Semco WM Galley-B unverified

Application

Galley

Common Failures & Inspection Points

Loss of extinguishing-agent inventory or pressure caused by leakage or poor maintenance, resulting in low-level or low-pressure indication and reduced readiness
Nozzle, pipe or distribution blockage caused by corrosion, paint, deposits or mechanical damage, resulting in restricted discharge
Release-valve or actuator failure caused by corrosion, sticking or control faults, resulting in inability to discharge the system when commanded
Detection, interlock or alarm failure caused by wiring, sensor or panel faults, resulting in missing alarms or inhibited release sequence
Pump, cylinder or pressure-regulating equipment deterioration caused by wear, corrosion or electrical faults, resulting in inadequate discharge performance

Use Cases: It is used for fixed fire protection on merchant ships, passenger vessels, offshore units or other vessel types where this equipment category is fitted.

Datasheet

Danfoss Semco WM Laundry-B unverified

Application

Laundry

Common Failures & Inspection Points

Loss of extinguishing-agent inventory or pressure caused by leakage or poor maintenance, resulting in low-level or low-pressure indication and reduced readiness
Nozzle, pipe or distribution blockage caused by corrosion, paint, deposits or mechanical damage, resulting in restricted discharge
Release-valve or actuator failure caused by corrosion, sticking or control faults, resulting in inability to discharge the system when commanded
Detection, interlock or alarm failure caused by wiring, sensor or panel faults, resulting in missing alarms or inhibited release sequence
Pump, cylinder or pressure-regulating equipment deterioration caused by wear, corrosion or electrical faults, resulting in inadequate discharge performance

Use Cases: It is used for fixed fire protection on merchant ships, passenger vessels, offshore units or other vessel types where this equipment category is fitted.

Datasheet

Danfoss Semco WM Paint Store-B unverified

Application

Paint Store

Common Failures & Inspection Points

Closed, seized or incorrectly positioned isolation valves can block discharge, detected during functional checks or by valve-position indication
Loss of agent, water or system pressure through leakage can reduce readiness, seen as low-pressure indication or inventory discrepancy
Blocked or damaged nozzles and distribution piping can impair coverage, found by inspection or flow testing
Release-circuit, solenoid or control-panel faults can prevent actuation, seen as failed tests or system alarms
Corrosion, contamination or mechanical damage to storage and piping components can compromise integrity, found during inspection or pressure-related checks

Spare Parts: Onboard spares should follow the approved system list and may include release-device consumables, seals, valve service items, nozzles, fuses and control-panel components.

Use Cases: Used as fixed fire protection in machinery spaces, cargo spaces, galleys and other designated shipboard fire-risk areas.

Datasheet

Danfoss Semco WM Boiler Room-B unverified

Application

Boiler Room

Common Failures & Inspection Points

Closed, seized or incorrectly positioned isolation valves can block discharge, detected during functional checks or by valve-position indication
Loss of agent, water or system pressure through leakage can reduce readiness, seen as low-pressure indication or inventory discrepancy
Blocked or damaged nozzles and distribution piping can impair coverage, found by inspection or flow testing
Release-circuit, solenoid or control-panel faults can prevent actuation, seen as failed tests or system alarms
Corrosion, contamination or mechanical damage to storage and piping components can compromise integrity, found during inspection or pressure-related checks

Spare Parts: Onboard spares should follow the approved system list and may include release-device consumables, seals, valve service items, nozzles, fuses and control-panel components.

Use Cases: Used as fixed fire protection in machinery spaces, cargo spaces, galleys and other designated shipboard fire-risk areas.

Datasheet

Danfoss Semco WM Pump Room-B unverified

Application

Pump Room

Common Failures & Inspection Points

Closed, seized or incorrectly positioned isolation valves can block discharge, detected during functional checks or by valve-position indication
Loss of agent, water or system pressure through leakage can reduce readiness, seen as low-pressure indication or inventory discrepancy
Blocked or damaged nozzles and distribution piping can impair coverage, found by inspection or flow testing
Release-circuit, solenoid or control-panel faults can prevent actuation, seen as failed tests or system alarms
Corrosion, contamination or mechanical damage to storage and piping components can compromise integrity, found during inspection or pressure-related checks

Spare Parts: Onboard spares should follow the approved system list and may include release-device consumables, seals, valve service items, nozzles, fuses and control-panel components.

Use Cases: Used as fixed fire protection in machinery spaces, cargo spaces, galleys and other designated shipboard fire-risk areas.

Datasheet

Danfoss Semco WM Generator Room-B unverified

Application

Generator Room

Common Failures & Inspection Points

Closed, seized or incorrectly positioned isolation valves can block discharge, detected during functional checks or by valve-position indication
Loss of agent, water or system pressure through leakage can reduce readiness, seen as low-pressure indication or inventory discrepancy
Blocked or damaged nozzles and distribution piping can impair coverage, found by inspection or flow testing
Release-circuit, solenoid or control-panel faults can prevent actuation, seen as failed tests or system alarms
Corrosion, contamination or mechanical damage to storage and piping components can compromise integrity, found during inspection or pressure-related checks

Spare Parts: Onboard spares should follow the approved system list and may include release-device consumables, seals, valve service items, nozzles, fuses and control-panel components.

Use Cases: Used as fixed fire protection in machinery spaces, cargo spaces, galleys and other designated shipboard fire-risk areas.

Datasheet

Danfoss Semco WM Switchboard Room-B unverified

Application

Switchboard Room

Common Failures & Inspection Points

Closed, seized or incorrectly positioned isolation valves can block discharge, detected during functional checks or by valve-position indication
Loss of agent, water or system pressure through leakage can reduce readiness, seen as low-pressure indication or inventory discrepancy
Blocked or damaged nozzles and distribution piping can impair coverage, found by inspection or flow testing
Release-circuit, solenoid or control-panel faults can prevent actuation, seen as failed tests or system alarms
Corrosion, contamination or mechanical damage to storage and piping components can compromise integrity, found during inspection or pressure-related checks

Spare Parts: Onboard spares should follow the approved system list and may include release-device consumables, seals, valve service items, nozzles, fuses and control-panel components.

Use Cases: Used as fixed fire protection in machinery spaces, cargo spaces, galleys and other designated shipboard fire-risk areas.

Datasheet

Aquasys / Tyco

Aquasys Marine WM-100 unverified

Common Failures & Inspection Points

Loss of extinguishing medium, cylinder pressure or water supply reduces available firefighting capacity
Valve, nozzle, pump or release-system faults prevent correct discharge into the protected area
Corrosion, seal deterioration or mechanical damage causes leakage or unreliable operation
Detection, alarm, fan-stop or shutdown interlock faults create an incomplete or unsafe release sequence
Blocked nozzles, hoses or distribution piping reduce agent delivery to the fire area

Service: Inspect storage or pumps, valves, nozzles, piping, release controls, alarms and shutdown interfaces according to the system type. Verify access control, protected-space arrangements and signs of leakage or corrosion. Functional tests must follow the approved safety procedure without unintended discharge. Refer to manufacturer, class and statutory documentation for the exact figure for pressure, quantity and acceptance criteria.

Spare Parts: Carry approved valve or solenoid parts, pump seals where applicable, release components, alarms, fuses, nozzles and manufacturer-supported service parts.

Use Cases: Fixed fire protection of machinery, accommodation and technical spaces.

Datasheet

Aquasys Marine WM-200 unverified

Common Failures & Inspection Points

Loss of extinguishing medium, cylinder pressure or water supply reduces available firefighting capacity
Valve, nozzle, pump or release-system faults prevent correct discharge into the protected area
Corrosion, seal deterioration or mechanical damage causes leakage or unreliable operation
Detection, alarm, fan-stop or shutdown interlock faults create an incomplete or unsafe release sequence
Blocked nozzles, hoses or distribution piping reduce agent delivery to the fire area

Spare Parts: Carry approved valve or solenoid parts, pump seals where applicable, release components, alarms, fuses, nozzles and manufacturer-supported service parts.

Use Cases: Fixed fire protection of machinery, accommodation and technical spaces.

Datasheet

Aquasys WM Machinery Space-B unverified

Application

Machinery Space

Common Failures & Inspection Points

Closed, seized or incorrectly positioned isolation valves can block discharge, detected during functional checks or by valve-position indication
Loss of agent, water or system pressure through leakage can reduce readiness, seen as low-pressure indication or inventory discrepancy
Blocked or damaged nozzles and distribution piping can impair coverage, found by inspection or flow testing
Release-circuit, solenoid or control-panel faults can prevent actuation, seen as failed tests or system alarms
Corrosion, contamination or mechanical damage to storage and piping components can compromise integrity, found during inspection or pressure-related checks

Spare Parts: Onboard spares should follow the approved system list and may include release-device consumables, seals, valve service items, nozzles, fuses and control-panel components.

Use Cases: Used as fixed fire protection in machinery spaces, cargo spaces, galleys and other designated shipboard fire-risk areas.

Datasheet

Aquasys WM Accommodation-B unverified

Application

Accommodation

Common Failures & Inspection Points

Closed, seized or incorrectly positioned isolation valves can block discharge, detected during functional checks or by valve-position indication
Loss of agent, water or system pressure through leakage can reduce readiness, seen as low-pressure indication or inventory discrepancy
Blocked or damaged nozzles and distribution piping can impair coverage, found by inspection or flow testing
Release-circuit, solenoid or control-panel faults can prevent actuation, seen as failed tests or system alarms
Corrosion, contamination or mechanical damage to storage and piping components can compromise integrity, found during inspection or pressure-related checks

Spare Parts: Onboard spares should follow the approved system list and may include release-device consumables, seals, valve service items, nozzles, fuses and control-panel components.

Use Cases: Used as fixed fire protection in machinery spaces, cargo spaces, galleys and other designated shipboard fire-risk areas.

Datasheet

Aquasys WM Car Deck-B unverified

Application

Car Deck

Common Failures & Inspection Points

Loss of extinguishing-agent inventory or pressure caused by leakage or poor maintenance, resulting in low-level or low-pressure indication and reduced readiness
Nozzle, pipe or distribution blockage caused by corrosion, paint, deposits or mechanical damage, resulting in restricted discharge
Release-valve or actuator failure caused by corrosion, sticking or control faults, resulting in inability to discharge the system when commanded
Detection, interlock or alarm failure caused by wiring, sensor or panel faults, resulting in missing alarms or inhibited release sequence
Pump, cylinder or pressure-regulating equipment deterioration caused by wear, corrosion or electrical faults, resulting in inadequate discharge performance

Use Cases: It is used for fixed fire protection on merchant ships, passenger vessels, offshore units or other vessel types where this equipment category is fitted.

Datasheet

Aquasys WM Cargo Hold-B unverified

Application

Cargo Hold

Common Failures & Inspection Points

Closed, seized or incorrectly positioned isolation valves can block discharge, detected during functional checks or by valve-position indication
Loss of agent, water or system pressure through leakage can reduce readiness, seen as low-pressure indication or inventory discrepancy
Blocked or damaged nozzles and distribution piping can impair coverage, found by inspection or flow testing
Release-circuit, solenoid or control-panel faults can prevent actuation, seen as failed tests or system alarms
Corrosion, contamination or mechanical damage to storage and piping components can compromise integrity, found during inspection or pressure-related checks

Spare Parts: Onboard spares should follow the approved system list and may include release-device consumables, seals, valve service items, nozzles, fuses and control-panel components.

Use Cases: Used as fixed fire protection in machinery spaces, cargo spaces, galleys and other designated shipboard fire-risk areas.

Datasheet

Aquasys WM Turbine-B unverified

Application

Turbine

Common Failures & Inspection Points

Loss of extinguishing-agent inventory or pressure caused by leakage or poor maintenance, resulting in low-level or low-pressure indication and reduced readiness
Nozzle, pipe or distribution blockage caused by corrosion, paint, deposits or mechanical damage, resulting in restricted discharge
Release-valve or actuator failure caused by corrosion, sticking or control faults, resulting in inability to discharge the system when commanded
Detection, interlock or alarm failure caused by wiring, sensor or panel faults, resulting in missing alarms or inhibited release sequence
Pump, cylinder or pressure-regulating equipment deterioration caused by wear, corrosion or electrical faults, resulting in inadequate discharge performance

Use Cases: It is used for fixed fire protection on merchant ships, passenger vessels, offshore units or other vessel types where this equipment category is fitted.

Datasheet

Aquasys WM Galley-B unverified

Application

Galley

Common Failures & Inspection Points

Loss of extinguishing-agent inventory or pressure caused by leakage or poor maintenance, resulting in low-level or low-pressure indication and reduced readiness
Nozzle, pipe or distribution blockage caused by corrosion, paint, deposits or mechanical damage, resulting in restricted discharge
Release-valve or actuator failure caused by corrosion, sticking or control faults, resulting in inability to discharge the system when commanded
Detection, interlock or alarm failure caused by wiring, sensor or panel faults, resulting in missing alarms or inhibited release sequence
Pump, cylinder or pressure-regulating equipment deterioration caused by wear, corrosion or electrical faults, resulting in inadequate discharge performance

Use Cases: It is used for fixed fire protection on merchant ships, passenger vessels, offshore units or other vessel types where this equipment category is fitted.

Datasheet

Aquasys WM Laundry-B unverified

Application

Laundry

Common Failures & Inspection Points

Loss of extinguishing-agent inventory or pressure caused by leakage or poor maintenance, resulting in low-level or low-pressure indication and reduced readiness
Nozzle, pipe or distribution blockage caused by corrosion, paint, deposits or mechanical damage, resulting in restricted discharge
Release-valve or actuator failure caused by corrosion, sticking or control faults, resulting in inability to discharge the system when commanded
Detection, interlock or alarm failure caused by wiring, sensor or panel faults, resulting in missing alarms or inhibited release sequence
Pump, cylinder or pressure-regulating equipment deterioration caused by wear, corrosion or electrical faults, resulting in inadequate discharge performance

Use Cases: It is used for fixed fire protection on merchant ships, passenger vessels, offshore units or other vessel types where this equipment category is fitted.

Datasheet

Aquasys WM Paint Store-B unverified

Application

Paint Store

Common Failures & Inspection Points

Closed, seized or incorrectly positioned isolation valves can block discharge, detected during functional checks or by valve-position indication
Loss of agent, water or system pressure through leakage can reduce readiness, seen as low-pressure indication or inventory discrepancy
Blocked or damaged nozzles and distribution piping can impair coverage, found by inspection or flow testing
Release-circuit, solenoid or control-panel faults can prevent actuation, seen as failed tests or system alarms
Corrosion, contamination or mechanical damage to storage and piping components can compromise integrity, found during inspection or pressure-related checks

Spare Parts: Onboard spares should follow the approved system list and may include release-device consumables, seals, valve service items, nozzles, fuses and control-panel components.

Use Cases: Used as fixed fire protection in machinery spaces, cargo spaces, galleys and other designated shipboard fire-risk areas.

Datasheet

Aquasys WM Boiler Room-B unverified

Application

Boiler Room

Common Failures & Inspection Points

Closed, seized or incorrectly positioned isolation valves can block discharge, detected during functional checks or by valve-position indication
Loss of agent, water or system pressure through leakage can reduce readiness, seen as low-pressure indication or inventory discrepancy
Blocked or damaged nozzles and distribution piping can impair coverage, found by inspection or flow testing
Release-circuit, solenoid or control-panel faults can prevent actuation, seen as failed tests or system alarms
Corrosion, contamination or mechanical damage to storage and piping components can compromise integrity, found during inspection or pressure-related checks

Spare Parts: Onboard spares should follow the approved system list and may include release-device consumables, seals, valve service items, nozzles, fuses and control-panel components.

Use Cases: Used as fixed fire protection in machinery spaces, cargo spaces, galleys and other designated shipboard fire-risk areas.

Datasheet

Aquasys WM Pump Room-B unverified

Application

Pump Room

Common Failures & Inspection Points

Loss of extinguishing-agent inventory or pressure caused by leakage or poor maintenance, resulting in low-level or low-pressure indication and reduced readiness
Nozzle, pipe or distribution blockage caused by corrosion, paint, deposits or mechanical damage, resulting in restricted discharge
Release-valve or actuator failure caused by corrosion, sticking or control faults, resulting in inability to discharge the system when commanded
Detection, interlock or alarm failure caused by wiring, sensor or panel faults, resulting in missing alarms or inhibited release sequence
Pump, cylinder or pressure-regulating equipment deterioration caused by wear, corrosion or electrical faults, resulting in inadequate discharge performance

Use Cases: It is used for fixed fire protection on merchant ships, passenger vessels, offshore units or other vessel types where this equipment category is fitted.

Datasheet

Aquasys WM Generator Room-B unverified

Application

Generator Room

Common Failures & Inspection Points

Closed, seized or incorrectly positioned isolation valves can block discharge, detected during functional checks or by valve-position indication
Loss of agent, water or system pressure through leakage can reduce readiness, seen as low-pressure indication or inventory discrepancy
Blocked or damaged nozzles and distribution piping can impair coverage, found by inspection or flow testing
Release-circuit, solenoid or control-panel faults can prevent actuation, seen as failed tests or system alarms
Corrosion, contamination or mechanical damage to storage and piping components can compromise integrity, found during inspection or pressure-related checks

Spare Parts: Onboard spares should follow the approved system list and may include release-device consumables, seals, valve service items, nozzles, fuses and control-panel components.

Use Cases: Used as fixed fire protection in machinery spaces, cargo spaces, galleys and other designated shipboard fire-risk areas.

Datasheet

Aquasys WM Switchboard Room-B unverified

Application

Switchboard Room

Common Failures & Inspection Points

Closed, seized or incorrectly positioned isolation valves can block discharge, detected during functional checks or by valve-position indication
Loss of agent, water or system pressure through leakage can reduce readiness, seen as low-pressure indication or inventory discrepancy
Blocked or damaged nozzles and distribution piping can impair coverage, found by inspection or flow testing
Release-circuit, solenoid or control-panel faults can prevent actuation, seen as failed tests or system alarms
Corrosion, contamination or mechanical damage to storage and piping components can compromise integrity, found during inspection or pressure-related checks

Spare Parts: Onboard spares should follow the approved system list and may include release-device consumables, seals, valve service items, nozzles, fuses and control-panel components.

Use Cases: Used as fixed fire protection in machinery spaces, cargo spaces, galleys and other designated shipboard fire-risk areas.

Datasheet

Marioff

Marioff HI-FOG Water Mist System

Engine room + accommodation zones · Fire Suppression / Detection · high-pressure water mist

Common Failures & Inspection Points

Loss of extinguishing medium, pressure or water supply reduces available firefighting capacity
Valve, hose, nozzle, release or pump faults prevent correct discharge
Corrosion, seal deterioration or mechanical damage causes leakage or unreliable operation
Detection, alarm, fan-stop or shutdown interlock faults create an incomplete or unsafe release sequence
Blocked nozzles, hoses or distribution piping reduce delivery to the fire area

Spare Parts: Carry approved valves, seals, hoses, nozzles, release components, pump service parts, alarms, fuses and manufacturer-supported extinguisher or system service items.

Strengths

Very low water consumption compared with conventional sprinkler systems
Fast discharge and high cooling efficiency due to fine droplet size
Compact pump and piping allow installation in space‑constrained machinery spaces
Reduced collateral damage to equipment, cargo and accommodation areas
Meets IMO FSS Code requirements for water mist fire protection

Weaknesses

High‑pressure pump requires diligent maintenance; seal failures are a known issue
Nozzle heads can clog if water quality is poor or filtration is inadequate
System relies on correctly charged accumulators; pressure loss reduces performance
Higher upfront capital cost than traditional sprinkler systems
Mandatory periodic testing (quarterly pump test, annual nozzle inspection) adds operational workload

Typical Vessels: TankerContainer shipBulk carrierRo‑Ro vesselPassenger ferryCruise shipOffshore supply vessel

Certifications: IMO Type Approval (FSS Code)DNV Class approval

Decision Guide: Choose if you need high fire‑suppression efficiency with minimal water damage, have limited fresh‑water storage, must comply with IMO FSS Code for water mist, or require a compact system for machinery spaces. Avoid if budget constraints prevent higher initial cost, maintenance capability is limited (especially pump seal and nozzle upkeep), or water quality cannot be guaranteed.

Use Cases: Portable and fixed firefighting on machinery, cargo, accommodation and deck areas.

Datasheet

Marioff HI-FOG CPU2020 unverified

Equipment Type

water_mist_system

Series

HI-FOG

Model code

CPU2020

Common Failures & Inspection Points

Nozzle, distribution-pipe or valve blockage reduces delivery to the protected space
Pump, cylinder, pressure or release-system faults prevent the system from reaching normal discharge condition
Solenoid, section-valve or pilot-control faults cause failure to release into the selected zone
Leakage or loss of stored medium causes low-pressure or quantity concerns
Detection, alarm, fan-stop or shutdown interlock faults create an incomplete or unsafe release sequence

Service: Inspect storage or pumps, valves, nozzles, piping, release controls, alarms and shutdown interfaces. Verify access control and protected-space arrangements. Functional tests must follow the approved safety procedure without unintended discharge. Refer to manufacturer, class and statutory documentation for the exact figure for pressure, quantity and acceptance criteria.

Spare Parts: Carry approved valve or solenoid parts, pump seals where applicable, release components, alarms, fuses, nozzles and manufacturer-supported service parts.

Use Cases: Fixed fire protection of machinery, cargo and accommodation spaces.

HI-FOG water mist — medium capacity pump unit

Datasheet

Marioff HI-FOG CPU2030 unverified

Equipment Type

water_mist_system

Series

HI-FOG

Model code

CPU2030

Common Failures & Inspection Points

Nozzle, distribution-pipe or valve blockage reduces delivery to the protected space
Pump, cylinder, pressure or release-system faults prevent the system from reaching normal discharge condition
Solenoid, section-valve or pilot-control faults cause failure to release into the selected zone
Leakage or loss of stored medium causes low-pressure or quantity concerns
Detection, alarm, fan-stop or shutdown interlock faults create an incomplete or unsafe release sequence

Spare Parts: Carry approved valve or solenoid parts, pump seals where applicable, release components, alarms, fuses, nozzles and manufacturer-supported service parts.

Use Cases: Fixed fire protection of machinery, cargo and accommodation spaces.

HI-FOG water mist — high capacity pump unit

Datasheet

Marioff HI-FOG Micro unverified

Equipment Type

water_mist_system

Series

HI-FOG

Model code

Micro

Common Failures & Inspection Points

Nozzle blockage caused by contamination, paint or deposits, resulting in restricted or uneven water-mist discharge
Pump or pressure-unit failure caused by motor, seal, valve or power-supply faults, resulting in low pressure or inability to start the system
Section-valve or actuator malfunction caused by corrosion, sticking or control faults, resulting in failure to release water to the selected zone
Detection or release-circuit fault caused by sensor, wiring or panel problems, resulting in alarms, inhibited release or unintended fault indications
Water leakage or pressure loss caused by damaged piping, fittings or seals, resulting in visible leakage or inability to maintain normal standby condition

Service: Inspect pump units, water supply, section valves, nozzles, piping, control panels and release devices in accordance with the approved maintenance plan. Keep nozzles unobstructed and protected from paint or mechanical damage. Function-test pumps, alarms and zone controls using the authorized test arrangement without unintended discharge into protected machinery. Check for leakage, corrosion and pressure loss and verify standby valves remain in the correct position. Record any modification to protected spaces because nozzle coverage is part of the approved design. Refer to manufacturer, class and statutory documentation for exact test intervals, pressures and acceptance criteria.

Spare Parts: Keep approved nozzle protection or replacement parts, pump seals, filters, valve service kits, control relays or sensors and manufacturer-recommended high-pressure fittings. Any nozzle, valve or pump replacement must preserve the approved system configuration. Confirm exact spares from the vessel's fire-system documentation.

Use Cases: Fixed fire protection for machinery spaces, engine enclosures and other approved shipboard hazards on merchant, passenger and offshore vessels.

HI-FOG water mist — compact pump unit

Datasheet

Marioff HI-FOG Minifog unverified

Equipment Type

water_mist_system

Series

HI-FOG

Model code

Minifog

Common Failures & Inspection Points

Nozzle, distribution-pipe or valve blockage reduces delivery to the protected space
Pump, cylinder, pressure or release-system faults prevent the system from reaching normal discharge condition
Solenoid, section-valve or pilot-control faults cause failure to release into the selected zone
Leakage or loss of stored medium causes low-pressure or quantity concerns
Detection, alarm, fan-stop or shutdown interlock faults create an incomplete or unsafe release sequence

Spare Parts: Carry approved valve or solenoid parts, pump seals where applicable, release components, alarms, fuses, nozzles and manufacturer-supported service parts.

Use Cases: Fixed fire protection of machinery, cargo and accommodation spaces.

HI-FOG water mist — local application

Datasheet

BSMI / Shanghai Baolong

BSMI WaterMist Marine 500 unverified

Common Failures & Inspection Points

Loss of extinguishing-agent inventory or pressure caused by leakage or poor maintenance, resulting in low-level or low-pressure indication and reduced readiness
Nozzle, pipe or distribution blockage caused by corrosion, paint, deposits or mechanical damage, resulting in restricted discharge
Release-valve or actuator failure caused by corrosion, sticking or control faults, resulting in inability to discharge the system when commanded
Detection, interlock or alarm failure caused by wiring, sensor or panel faults, resulting in missing alarms or inhibited release sequence
Pump, cylinder or pressure-regulating equipment deterioration caused by wear, corrosion or electrical faults, resulting in inadequate discharge performance

Use Cases: It is used for fixed fire protection on merchant ships, passenger vessels, offshore units or other vessel types where this equipment category is fitted.

Datasheet

BSMI WaterMist Marine 1000 unverified

Common Failures & Inspection Points

Closed, seized or incorrectly positioned isolation valves can block discharge, detected during functional checks or by valve-position indication
Loss of agent, water or system pressure through leakage can reduce readiness, seen as low-pressure indication or inventory discrepancy
Blocked or damaged nozzles and distribution piping can impair coverage, found by inspection or flow testing
Release-circuit, solenoid or control-panel faults can prevent actuation, seen as failed tests or system alarms
Corrosion, contamination or mechanical damage to storage and piping components can compromise integrity, found during inspection or pressure-related checks

Spare Parts: Onboard spares should follow the approved system list and may include release-device consumables, seals, valve service items, nozzles, fuses and control-panel components.

Use Cases: Used as fixed fire protection in machinery spaces, cargo spaces, galleys and other designated shipboard fire-risk areas.

Datasheet