Cargo Compressor
medium
62 models total
A cargo compressor moves cargo vapour, not starting air, and on a gas carrier it has to run oil-free or with a lubricant compatible with the cargo, because even trace contamination can spoil an entire shipment.
Read more — Cargo Compressor explained ▾
What sets a cargo compressor apart from a starting air compressor
A starting air compressor moves ordinary atmospheric air and tolerates the usual oil lubrication of its cylinders because the compressed air only has to start an engine. A cargo compressor on a gas carrier compresses the cargo's own vapour, whether that is LPG, LNG boil-off or another liquefied gas, and moves it during loading, discharging, tank cooldown and reliquefaction. Because the compressed vapour goes back into the cargo tank or the shore terminal, oil carryover or any contamination is a cargo quality problem as much as a machinery one, which drives most of the design choices that make a cargo compressor look and run differently from any other compressor on board.
Main components
Compression stage
Reciprocating compressors remain common for smaller LPG carriers and for boosting low-pressure boil-off, screw compressors handle larger continuous flows with fewer moving parts in contact with cargo, and centrifugal compressors are used on large LNG carriers for the high volumetric flow reliquefaction and boil-off management demands.
Lubrication and sealing arrangement
Oil-free or labyrinth-piston designs avoid any lubricant contact with cargo vapour entirely; where oil lubrication is used, the oil grade has to be chemically compatible with the specific cargo and the system includes an oil separator to strip carryover before the vapour returns to the tank or shore line.
Cooling system
Intercoolers and aftercoolers remove the heat of compression between stages, since cargo vapour compressed without adequate cooling can rise to temperatures that risk polymerisation or decomposition depending on the specific cargo carried.
Instrumentation and trips
High discharge temperature, high discharge pressure, low suction pressure and vibration trips protect both the compressor and the cargo, shutting the unit down automatically rather than relying on watchkeeper response time.
Selection and sizing
Sizing follows the vessel's required loading and discharge rates plus its boil-off management duty, and the compressor type follows the cargo range the vessel is built to carry, since a compressor optimised for LPG service is not automatically suitable for the much lower temperatures and different vapour properties of LNG.
Regulations and class
The IGC Code governs gas carrier cargo systems including compressor design, materials and safety devices, with class rules setting survey and testing intervals for pressure vessels, relief devices and the trip and alarm system protecting the compressor. Materials in contact with cargo vapour have to be compatible with the specific cargoes the vessel is certified to carry, and that certification is checked against the compressor's actual material specification during survey.
Typical faults
- Oil carryover into cargo — from a degraded oil separator, contaminating the cargo and potentially triggering a rejection at the receiving terminal.
- Valve plate wear — on reciprocating units, reducing compression efficiency and raising discharge temperature toward the trip setting.
- Seal degradation — allowing cargo vapour leakage into the compressor room atmosphere, a serious hazard given the flammable or toxic nature of most cargo vapours.
- Fouled intercooler — reduces cooling effectiveness, pushing discharge temperature up and cutting effective capacity.
What to look for in a supplier
- Cargo compatibility certification matched to the vessel's actual approved cargo list.
- Documented capacity curve at the specific suction and discharge conditions the vessel operates at, not a single nominal rating.
- Materials certification for all wetted parts against the cargo range.
- Spare parts support for seals and valve components, which are the parts with the shortest service life.
Track discharge temperature trend over time, not just against the trip setting — a slow upward creep usually means fouling or valve wear well before the compressor actually trips.
5 manufacturers · 62 models
Daikin Marine
34
Daikin ZT 15 Series
unverified
Model Family
ZT 15
Compressor Type
cargo_compressor
Common Failures & Inspection Points
- Suction filter restriction, valve fouling, or poor inlet conditions reduce capacity and cause long running time or low final pressure
- Discharge or suction valve wear from deposits, fatigue, or contamination causes reduced compression, high stage temperatures, or abnormal pulsation
- Lubrication problems from low oil level, contamination, or pump failure cause high bearing temperature, noise, or low oil-pressure alarms
- Cooler fouling or cooling-water restriction causes high discharge temperature and thermal trips
- Seal, piston ring, packing, rotor, or gasket wear causes gas leakage, oil carryover, reduced capacity, or frequent cycling
Service: Trend stage pressures and temperatures, oil condition, cooling performance, running time, leakage, vibration, and safety trips. Inspect filters, valves, coolers, drains, separators, unloaders, drive components, and relief devices; use manufacturer data for exact pressure settings and wear limits.
Spare Parts: Carry the applicable valve service kits, piston rings or sealing elements, gaskets, filters, lubricating-system parts, belts or coupling elements, and critical sensors or unloaders recommended for the installed compressor.
Use Cases: Used on merchant ships, offshore vessels, passenger ships, fishing vessels, and workboats for starting air, service/control air, refrigeration, cargo gas, and specialized process duties.
Daikin ZT 15 200/15
unverified
Model Family
ZT 15
Compressor Type
cargo_compressor
Pressure (bar)
15
Capacity (Nm³/h)
200
Stages
3
Common Failures & Inspection Points
- Seal leakage can release process gas, noticed by gas detection, odour where applicable or loss of system pressure
- Restricted suction flow or fouled filters reduce capacity, noticed as low suction pressure and reduced transfer or conditioning performance
- Cooling deficiency raises discharge temperature, noticed as temperature alarms or compressor trips
- Valve or internal compression-element wear lowers volumetric efficiency, noticed as longer operating time and poor pressure build-up
- Control, anti-surge or shutdown interlock faults can cause unstable operation or unexpected trips
Service: Inspect the compressor and connected cargo piping for leakage, condition of seals, vibration, lubrication and cooling performance. Function-test local and remote controls, shutdowns, gas-detection interfaces and emergency stops in accordance with the vessel's procedures. Verify model-specific limits, permissible cargo media and service clearances from manufacturer and vessel documentation.
Spare Parts: Carry approved seal kits, gaskets and O-rings, filters, lubrication consumables where applicable, control-valve or solenoid parts and critical sensors specified for the installed cargo compressor.
Use Cases: Used on tankers, gas carriers and other vessels with cargo systems requiring vapour compression, recovery, transfer or pressure control.
Daikin ZT 15 200/25
unverified
Model Family
ZT 15
Compressor Type
cargo_compressor
Pressure (bar)
25
Capacity (Nm³/h)
200
Stages
3
Common Failures & Inspection Points
- Seal leakage can release process gas, noticed by gas detection, odour where applicable or loss of system pressure
- Restricted suction flow or fouled filters reduce capacity, noticed as low suction pressure and reduced transfer or conditioning performance
- Cooling deficiency raises discharge temperature, noticed as temperature alarms or compressor trips
- Valve or internal compression-element wear lowers volumetric efficiency, noticed as longer operating time and poor pressure build-up
- Control, anti-surge or shutdown interlock faults can cause unstable operation or unexpected trips
Service: Inspect the compressor and connected cargo piping for leakage, condition of seals, vibration, lubrication and cooling performance. Function-test local and remote controls, shutdowns, gas-detection interfaces and emergency stops in accordance with the vessel's procedures. Verify model-specific limits, permissible cargo media and service clearances from manufacturer and vessel documentation.
Spare Parts: Carry approved seal kits, gaskets and O-rings, filters, lubrication consumables where applicable, control-valve or solenoid parts and critical sensors specified for the installed cargo compressor.
Use Cases: Used on tankers, gas carriers and other vessels with cargo systems requiring vapour compression, recovery, transfer or pressure control.
Daikin ZT 15 200/40
unverified
Model Family
ZT 15
Compressor Type
cargo_compressor
Pressure (bar)
40
Capacity (Nm³/h)
200
Stages
4
Common Failures & Inspection Points
- Seal leakage can release process gas, noticed by gas detection, odour where applicable or loss of system pressure
- Restricted suction flow or fouled filters reduce capacity, noticed as low suction pressure and reduced transfer or conditioning performance
- Cooling deficiency raises discharge temperature, noticed as temperature alarms or compressor trips
- Valve or internal compression-element wear lowers volumetric efficiency, noticed as longer operating time and poor pressure build-up
- Control, anti-surge or shutdown interlock faults can cause unstable operation or unexpected trips
Service: Inspect the compressor and connected cargo piping for leakage, condition of seals, vibration, lubrication and cooling performance. Function-test local and remote controls, shutdowns, gas-detection interfaces and emergency stops in accordance with the vessel's procedures. Verify model-specific limits, permissible cargo media and service clearances from manufacturer and vessel documentation.
Spare Parts: Carry approved seal kits, gaskets and O-rings, filters, lubrication consumables where applicable, control-valve or solenoid parts and critical sensors specified for the installed cargo compressor.
Use Cases: Used on tankers, gas carriers and other vessels with cargo systems requiring vapour compression, recovery, transfer or pressure control.
Daikin ZT 15 400/15
unverified
Model Family
ZT 15
Compressor Type
cargo_compressor
Pressure (bar)
15
Capacity (Nm³/h)
400
Stages
3
Common Failures & Inspection Points
- Seal leakage can release process gas, noticed by gas detection, odour where applicable or loss of system pressure
- Restricted suction flow or fouled filters reduce capacity, noticed as low suction pressure and reduced transfer or conditioning performance
- Cooling deficiency raises discharge temperature, noticed as temperature alarms or compressor trips
- Valve or internal compression-element wear lowers volumetric efficiency, noticed as longer operating time and poor pressure build-up
- Control, anti-surge or shutdown interlock faults can cause unstable operation or unexpected trips
Service: Inspect the compressor and connected cargo piping for leakage, condition of seals, vibration, lubrication and cooling performance. Function-test local and remote controls, shutdowns, gas-detection interfaces and emergency stops in accordance with the vessel's procedures. Verify model-specific limits, permissible cargo media and service clearances from manufacturer and vessel documentation.
Spare Parts: Carry approved seal kits, gaskets and O-rings, filters, lubrication consumables where applicable, control-valve or solenoid parts and critical sensors specified for the installed cargo compressor.
Use Cases: Used on tankers, gas carriers and other vessels with cargo systems requiring vapour compression, recovery, transfer or pressure control.
Daikin ZT 15 400/25
unverified
Model Family
ZT 15
Compressor Type
cargo_compressor
Pressure (bar)
25
Capacity (Nm³/h)
400
Stages
3
Common Failures & Inspection Points
- Seal leakage can release process gas, noticed by gas detection, odour where applicable or loss of system pressure
- Restricted suction flow or fouled filters reduce capacity, noticed as low suction pressure and reduced transfer or conditioning performance
- Cooling deficiency raises discharge temperature, noticed as temperature alarms or compressor trips
- Valve or internal compression-element wear lowers volumetric efficiency, noticed as longer operating time and poor pressure build-up
- Control, anti-surge or shutdown interlock faults can cause unstable operation or unexpected trips
Service: Inspect the compressor and connected cargo piping for leakage, condition of seals, vibration, lubrication and cooling performance. Function-test local and remote controls, shutdowns, gas-detection interfaces and emergency stops in accordance with the vessel's procedures. Verify model-specific limits, permissible cargo media and service clearances from manufacturer and vessel documentation.
Spare Parts: Carry approved seal kits, gaskets and O-rings, filters, lubrication consumables where applicable, control-valve or solenoid parts and critical sensors specified for the installed cargo compressor.
Use Cases: Used on tankers, gas carriers and other vessels with cargo systems requiring vapour compression, recovery, transfer or pressure control.
Daikin ZT 15 400/40
unverified
Model Family
ZT 15
Compressor Type
cargo_compressor
Pressure (bar)
40
Capacity (Nm³/h)
400
Stages
4
Common Failures & Inspection Points
- Seal leakage can release process gas, noticed by gas detection, odour where applicable or loss of system pressure
- Restricted suction flow or fouled filters reduce capacity, noticed as low suction pressure and reduced transfer or conditioning performance
- Cooling deficiency raises discharge temperature, noticed as temperature alarms or compressor trips
- Valve or internal compression-element wear lowers volumetric efficiency, noticed as longer operating time and poor pressure build-up
- Control, anti-surge or shutdown interlock faults can cause unstable operation or unexpected trips
Service: Inspect the compressor and connected cargo piping for leakage, condition of seals, vibration, lubrication and cooling performance. Function-test local and remote controls, shutdowns, gas-detection interfaces and emergency stops in accordance with the vessel's procedures. Verify model-specific limits, permissible cargo media and service clearances from manufacturer and vessel documentation.
Spare Parts: Carry approved seal kits, gaskets and O-rings, filters, lubrication consumables where applicable, control-valve or solenoid parts and critical sensors specified for the installed cargo compressor.
Use Cases: Used on tankers, gas carriers and other vessels with cargo systems requiring vapour compression, recovery, transfer or pressure control.
Daikin ZT 15 600/15
unverified
Model Family
ZT 15
Compressor Type
cargo_compressor
Pressure (bar)
15
Capacity (Nm³/h)
600
Stages
3
Common Failures & Inspection Points
- Seal leakage can release process gas, noticed by gas detection, odour where applicable or loss of system pressure
- Restricted suction flow or fouled filters reduce capacity, noticed as low suction pressure and reduced transfer or conditioning performance
- Cooling deficiency raises discharge temperature, noticed as temperature alarms or compressor trips
- Valve or internal compression-element wear lowers volumetric efficiency, noticed as longer operating time and poor pressure build-up
- Control, anti-surge or shutdown interlock faults can cause unstable operation or unexpected trips
Service: Inspect the compressor and connected cargo piping for leakage, condition of seals, vibration, lubrication and cooling performance. Function-test local and remote controls, shutdowns, gas-detection interfaces and emergency stops in accordance with the vessel's procedures. Verify model-specific limits, permissible cargo media and service clearances from manufacturer and vessel documentation.
Spare Parts: Carry approved seal kits, gaskets and O-rings, filters, lubrication consumables where applicable, control-valve or solenoid parts and critical sensors specified for the installed cargo compressor.
Use Cases: Used on tankers, gas carriers and other vessels with cargo systems requiring vapour compression, recovery, transfer or pressure control.
Daikin ZT 15 600/25
unverified
Model Family
ZT 15
Compressor Type
cargo_compressor
Pressure (bar)
25
Capacity (Nm³/h)
600
Stages
3
Common Failures & Inspection Points
- Seal leakage can release process gas, noticed by gas detection, odour where applicable or loss of system pressure
- Restricted suction flow or fouled filters reduce capacity, noticed as low suction pressure and reduced transfer or conditioning performance
- Cooling deficiency raises discharge temperature, noticed as temperature alarms or compressor trips
- Valve or internal compression-element wear lowers volumetric efficiency, noticed as longer operating time and poor pressure build-up
- Control, anti-surge or shutdown interlock faults can cause unstable operation or unexpected trips
Service: Inspect the compressor and connected cargo piping for leakage, condition of seals, vibration, lubrication and cooling performance. Function-test local and remote controls, shutdowns, gas-detection interfaces and emergency stops in accordance with the vessel's procedures. Verify model-specific limits, permissible cargo media and service clearances from manufacturer and vessel documentation.
Spare Parts: Carry approved seal kits, gaskets and O-rings, filters, lubrication consumables where applicable, control-valve or solenoid parts and critical sensors specified for the installed cargo compressor.
Use Cases: Used on tankers, gas carriers and other vessels with cargo systems requiring vapour compression, recovery, transfer or pressure control.
Daikin ZT 15 600/40
unverified
Model Family
ZT 15
Compressor Type
cargo_compressor
Pressure (bar)
40
Capacity (Nm³/h)
600
Stages
4
Common Failures & Inspection Points
- Seal leakage can release process gas, noticed by gas detection, odour where applicable or loss of system pressure
- Restricted suction flow or fouled filters reduce capacity, noticed as low suction pressure and reduced transfer or conditioning performance
- Cooling deficiency raises discharge temperature, noticed as temperature alarms or compressor trips
- Valve or internal compression-element wear lowers volumetric efficiency, noticed as longer operating time and poor pressure build-up
- Control, anti-surge or shutdown interlock faults can cause unstable operation or unexpected trips
Service: Inspect the compressor and connected cargo piping for leakage, condition of seals, vibration, lubrication and cooling performance. Function-test local and remote controls, shutdowns, gas-detection interfaces and emergency stops in accordance with the vessel's procedures. Verify model-specific limits, permissible cargo media and service clearances from manufacturer and vessel documentation.
Spare Parts: Carry approved seal kits, gaskets and O-rings, filters, lubrication consumables where applicable, control-valve or solenoid parts and critical sensors specified for the installed cargo compressor.
Use Cases: Used on tankers, gas carriers and other vessels with cargo systems requiring vapour compression, recovery, transfer or pressure control.
Daikin ZT 22 Series
unverified
Model Family
ZT 22
Compressor Type
cargo_compressor
Common Failures & Inspection Points
- Suction filter restriction, valve fouling, or poor inlet conditions reduce capacity and cause long running time or low final pressure
- Discharge or suction valve wear from deposits, fatigue, or contamination causes reduced compression, high stage temperatures, or abnormal pulsation
- Lubrication problems from low oil level, contamination, or pump failure cause high bearing temperature, noise, or low oil-pressure alarms
- Cooler fouling or cooling-water restriction causes high discharge temperature and thermal trips
- Seal, piston ring, packing, rotor, or gasket wear causes gas leakage, oil carryover, reduced capacity, or frequent cycling
Service: Trend stage pressures and temperatures, oil condition, cooling performance, running time, leakage, vibration, and safety trips. Inspect filters, valves, coolers, drains, separators, unloaders, drive components, and relief devices; use manufacturer data for exact pressure settings and wear limits.
Spare Parts: Carry the applicable valve service kits, piston rings or sealing elements, gaskets, filters, lubricating-system parts, belts or coupling elements, and critical sensors or unloaders recommended for the installed compressor.
Use Cases: Used on merchant ships, offshore vessels, passenger ships, fishing vessels, and workboats for starting air, service/control air, refrigeration, cargo gas, and specialized process duties.
Daikin ZT 22 400/15
unverified
Model Family
ZT 22
Compressor Type
cargo_compressor
Pressure (bar)
15
Capacity (Nm³/h)
400
Stages
3
Common Failures & Inspection Points
- Seal leakage can release process gas, noticed by gas detection, odour where applicable or loss of system pressure
- Restricted suction flow or fouled filters reduce capacity, noticed as low suction pressure and reduced transfer or conditioning performance
- Cooling deficiency raises discharge temperature, noticed as temperature alarms or compressor trips
- Valve or internal compression-element wear lowers volumetric efficiency, noticed as longer operating time and poor pressure build-up
- Control, anti-surge or shutdown interlock faults can cause unstable operation or unexpected trips
Service: Inspect the compressor and connected cargo piping for leakage, condition of seals, vibration, lubrication and cooling performance. Function-test local and remote controls, shutdowns, gas-detection interfaces and emergency stops in accordance with the vessel's procedures. Verify model-specific limits, permissible cargo media and service clearances from manufacturer and vessel documentation.
Spare Parts: Carry approved seal kits, gaskets and O-rings, filters, lubrication consumables where applicable, control-valve or solenoid parts and critical sensors specified for the installed cargo compressor.
Use Cases: Used on tankers, gas carriers and other vessels with cargo systems requiring vapour compression, recovery, transfer or pressure control.
Daikin ZT 22 400/25
unverified
Model Family
ZT 22
Compressor Type
cargo_compressor
Pressure (bar)
25
Capacity (Nm³/h)
400
Stages
3
Common Failures & Inspection Points
- Seal leakage can release process gas, noticed by gas detection, odour where applicable or loss of system pressure
- Restricted suction flow or fouled filters reduce capacity, noticed as low suction pressure and reduced transfer or conditioning performance
- Cooling deficiency raises discharge temperature, noticed as temperature alarms or compressor trips
- Valve or internal compression-element wear lowers volumetric efficiency, noticed as longer operating time and poor pressure build-up
- Control, anti-surge or shutdown interlock faults can cause unstable operation or unexpected trips
Service: Inspect the compressor and connected cargo piping for leakage, condition of seals, vibration, lubrication and cooling performance. Function-test local and remote controls, shutdowns, gas-detection interfaces and emergency stops in accordance with the vessel's procedures. Verify model-specific limits, permissible cargo media and service clearances from manufacturer and vessel documentation.
Spare Parts: Carry approved seal kits, gaskets and O-rings, filters, lubrication consumables where applicable, control-valve or solenoid parts and critical sensors specified for the installed cargo compressor.
Use Cases: Used on tankers, gas carriers and other vessels with cargo systems requiring vapour compression, recovery, transfer or pressure control.
Daikin ZT 22 400/40
unverified
Model Family
ZT 22
Compressor Type
cargo_compressor
Pressure (bar)
40
Capacity (Nm³/h)
400
Stages
4
Common Failures & Inspection Points
- Seal leakage can release process gas, noticed by gas detection, odour where applicable or loss of system pressure
- Restricted suction flow or fouled filters reduce capacity, noticed as low suction pressure and reduced transfer or conditioning performance
- Cooling deficiency raises discharge temperature, noticed as temperature alarms or compressor trips
- Valve or internal compression-element wear lowers volumetric efficiency, noticed as longer operating time and poor pressure build-up
- Control, anti-surge or shutdown interlock faults can cause unstable operation or unexpected trips
Service: Inspect the compressor and connected cargo piping for leakage, condition of seals, vibration, lubrication and cooling performance. Function-test local and remote controls, shutdowns, gas-detection interfaces and emergency stops in accordance with the vessel's procedures. Verify model-specific limits, permissible cargo media and service clearances from manufacturer and vessel documentation.
Spare Parts: Carry approved seal kits, gaskets and O-rings, filters, lubrication consumables where applicable, control-valve or solenoid parts and critical sensors specified for the installed cargo compressor.
Use Cases: Used on tankers, gas carriers and other vessels with cargo systems requiring vapour compression, recovery, transfer or pressure control.
Daikin ZT 22 600/15
unverified
Model Family
ZT 22
Compressor Type
cargo_compressor
Pressure (bar)
15
Capacity (Nm³/h)
600
Stages
3
Common Failures & Inspection Points
- Seal leakage can release process gas, noticed by gas detection, odour where applicable or loss of system pressure
- Restricted suction flow or fouled filters reduce capacity, noticed as low suction pressure and reduced transfer or conditioning performance
- Cooling deficiency raises discharge temperature, noticed as temperature alarms or compressor trips
- Valve or internal compression-element wear lowers volumetric efficiency, noticed as longer operating time and poor pressure build-up
- Control, anti-surge or shutdown interlock faults can cause unstable operation or unexpected trips
Service: Inspect the compressor and connected cargo piping for leakage, condition of seals, vibration, lubrication and cooling performance. Function-test local and remote controls, shutdowns, gas-detection interfaces and emergency stops in accordance with the vessel's procedures. Verify model-specific limits, permissible cargo media and service clearances from manufacturer and vessel documentation.
Spare Parts: Carry approved seal kits, gaskets and O-rings, filters, lubrication consumables where applicable, control-valve or solenoid parts and critical sensors specified for the installed cargo compressor.
Use Cases: Used on tankers, gas carriers and other vessels with cargo systems requiring vapour compression, recovery, transfer or pressure control.
Daikin ZT 22 600/25
unverified
Model Family
ZT 22
Compressor Type
cargo_compressor
Pressure (bar)
25
Capacity (Nm³/h)
600
Stages
3
Common Failures & Inspection Points
- Seal leakage can release process gas, noticed by gas detection, odour where applicable or loss of system pressure
- Restricted suction flow or fouled filters reduce capacity, noticed as low suction pressure and reduced transfer or conditioning performance
- Cooling deficiency raises discharge temperature, noticed as temperature alarms or compressor trips
- Valve or internal compression-element wear lowers volumetric efficiency, noticed as longer operating time and poor pressure build-up
- Control, anti-surge or shutdown interlock faults can cause unstable operation or unexpected trips
Service: Inspect the compressor and connected cargo piping for leakage, condition of seals, vibration, lubrication and cooling performance. Function-test local and remote controls, shutdowns, gas-detection interfaces and emergency stops in accordance with the vessel's procedures. Verify model-specific limits, permissible cargo media and service clearances from manufacturer and vessel documentation.
Spare Parts: Carry approved seal kits, gaskets and O-rings, filters, lubrication consumables where applicable, control-valve or solenoid parts and critical sensors specified for the installed cargo compressor.
Use Cases: Used on tankers, gas carriers and other vessels with cargo systems requiring vapour compression, recovery, transfer or pressure control.
Daikin ZT 22 600/40
unverified
Model Family
ZT 22
Compressor Type
cargo_compressor
Pressure (bar)
40
Capacity (Nm³/h)
600
Stages
4
Common Failures & Inspection Points
- Seal leakage can release process gas, noticed by gas detection, odour where applicable or loss of system pressure
- Restricted suction flow or fouled filters reduce capacity, noticed as low suction pressure and reduced transfer or conditioning performance
- Cooling deficiency raises discharge temperature, noticed as temperature alarms or compressor trips
- Valve or internal compression-element wear lowers volumetric efficiency, noticed as longer operating time and poor pressure build-up
- Control, anti-surge or shutdown interlock faults can cause unstable operation or unexpected trips
Service: Inspect the compressor and connected cargo piping for leakage, condition of seals, vibration, lubrication and cooling performance. Function-test local and remote controls, shutdowns, gas-detection interfaces and emergency stops in accordance with the vessel's procedures. Verify model-specific limits, permissible cargo media and service clearances from manufacturer and vessel documentation.
Spare Parts: Carry approved seal kits, gaskets and O-rings, filters, lubrication consumables where applicable, control-valve or solenoid parts and critical sensors specified for the installed cargo compressor.
Use Cases: Used on tankers, gas carriers and other vessels with cargo systems requiring vapour compression, recovery, transfer or pressure control.
Daikin ZT 22 1000/15
unverified
Model Family
ZT 22
Compressor Type
cargo_compressor
Pressure (bar)
15
Capacity (Nm³/h)
1000
Stages
3
Common Failures & Inspection Points
- Seal leakage can release process gas, noticed by gas detection, odour where applicable or loss of system pressure
- Restricted suction flow or fouled filters reduce capacity, noticed as low suction pressure and reduced transfer or conditioning performance
- Cooling deficiency raises discharge temperature, noticed as temperature alarms or compressor trips
- Valve or internal compression-element wear lowers volumetric efficiency, noticed as longer operating time and poor pressure build-up
- Control, anti-surge or shutdown interlock faults can cause unstable operation or unexpected trips
Service: Inspect the compressor and connected cargo piping for leakage, condition of seals, vibration, lubrication and cooling performance. Function-test local and remote controls, shutdowns, gas-detection interfaces and emergency stops in accordance with the vessel's procedures. Verify model-specific limits, permissible cargo media and service clearances from manufacturer and vessel documentation.
Spare Parts: Carry approved seal kits, gaskets and O-rings, filters, lubrication consumables where applicable, control-valve or solenoid parts and critical sensors specified for the installed cargo compressor.
Use Cases: Used on tankers, gas carriers and other vessels with cargo systems requiring vapour compression, recovery, transfer or pressure control.
Daikin ZT 22 1000/25
unverified
Model Family
ZT 22
Compressor Type
cargo_compressor
Pressure (bar)
25
Capacity (Nm³/h)
1000
Stages
3
Common Failures & Inspection Points
- Seal leakage can release process gas, noticed by gas detection, odour where applicable or loss of system pressure
- Restricted suction flow or fouled filters reduce capacity, noticed as low suction pressure and reduced transfer or conditioning performance
- Cooling deficiency raises discharge temperature, noticed as temperature alarms or compressor trips
- Valve or internal compression-element wear lowers volumetric efficiency, noticed as longer operating time and poor pressure build-up
- Control, anti-surge or shutdown interlock faults can cause unstable operation or unexpected trips
Service: Inspect the compressor and connected cargo piping for leakage, condition of seals, vibration, lubrication and cooling performance. Function-test local and remote controls, shutdowns, gas-detection interfaces and emergency stops in accordance with the vessel's procedures. Verify model-specific limits, permissible cargo media and service clearances from manufacturer and vessel documentation.
Spare Parts: Carry approved seal kits, gaskets and O-rings, filters, lubrication consumables where applicable, control-valve or solenoid parts and critical sensors specified for the installed cargo compressor.
Use Cases: Used on tankers, gas carriers and other vessels with cargo systems requiring vapour compression, recovery, transfer or pressure control.
Daikin ZT 22 1000/40
unverified
Model Family
ZT 22
Compressor Type
cargo_compressor
Pressure (bar)
40
Capacity (Nm³/h)
1000
Stages
4
Common Failures & Inspection Points
- Seal leakage can release process gas, noticed by gas detection, odour where applicable or loss of system pressure
- Restricted suction flow or fouled filters reduce capacity, noticed as low suction pressure and reduced transfer or conditioning performance
- Cooling deficiency raises discharge temperature, noticed as temperature alarms or compressor trips
- Valve or internal compression-element wear lowers volumetric efficiency, noticed as longer operating time and poor pressure build-up
- Control, anti-surge or shutdown interlock faults can cause unstable operation or unexpected trips
Service: Inspect the compressor and connected cargo piping for leakage, condition of seals, vibration, lubrication and cooling performance. Function-test local and remote controls, shutdowns, gas-detection interfaces and emergency stops in accordance with the vessel's procedures. Verify model-specific limits, permissible cargo media and service clearances from manufacturer and vessel documentation.
Spare Parts: Carry approved seal kits, gaskets and O-rings, filters, lubrication consumables where applicable, control-valve or solenoid parts and critical sensors specified for the installed cargo compressor.
Use Cases: Used on tankers, gas carriers and other vessels with cargo systems requiring vapour compression, recovery, transfer or pressure control.
Daikin ZT 37 Series
unverified
Model Family
ZT 37
Compressor Type
cargo_compressor
Common Failures & Inspection Points
- Suction filter restriction, valve fouling, or poor inlet conditions reduce capacity and cause long running time or low final pressure
- Discharge or suction valve wear from deposits, fatigue, or contamination causes reduced compression, high stage temperatures, or abnormal pulsation
- Lubrication problems from low oil level, contamination, or pump failure cause high bearing temperature, noise, or low oil-pressure alarms
- Cooler fouling or cooling-water restriction causes high discharge temperature and thermal trips
- Seal, piston ring, packing, rotor, or gasket wear causes gas leakage, oil carryover, reduced capacity, or frequent cycling
Service: Trend stage pressures and temperatures, oil condition, cooling performance, running time, leakage, vibration, and safety trips. Inspect filters, valves, coolers, drains, separators, unloaders, drive components, and relief devices; use manufacturer data for exact pressure settings and wear limits.
Spare Parts: Carry the applicable valve service kits, piston rings or sealing elements, gaskets, filters, lubricating-system parts, belts or coupling elements, and critical sensors or unloaders recommended for the installed compressor.
Use Cases: Used on merchant ships, offshore vessels, passenger ships, fishing vessels, and workboats for starting air, service/control air, refrigeration, cargo gas, and specialized process duties.
Daikin ZT 37 600/15
unverified
Model Family
ZT 37
Compressor Type
cargo_compressor
Pressure (bar)
15
Capacity (Nm³/h)
600
Stages
3
Common Failures & Inspection Points
- Seal leakage can release process gas, noticed by gas detection, odour where applicable or loss of system pressure
- Restricted suction flow or fouled filters reduce capacity, noticed as low suction pressure and reduced transfer or conditioning performance
- Cooling deficiency raises discharge temperature, noticed as temperature alarms or compressor trips
- Valve or internal compression-element wear lowers volumetric efficiency, noticed as longer operating time and poor pressure build-up
- Control, anti-surge or shutdown interlock faults can cause unstable operation or unexpected trips
Service: Inspect the compressor and connected cargo piping for leakage, condition of seals, vibration, lubrication and cooling performance. Function-test local and remote controls, shutdowns, gas-detection interfaces and emergency stops in accordance with the vessel's procedures. Verify model-specific limits, permissible cargo media and service clearances from manufacturer and vessel documentation.
Spare Parts: Carry approved seal kits, gaskets and O-rings, filters, lubrication consumables where applicable, control-valve or solenoid parts and critical sensors specified for the installed cargo compressor.
Use Cases: Used on tankers, gas carriers and other vessels with cargo systems requiring vapour compression, recovery, transfer or pressure control.
Daikin ZT 37 600/25
unverified
Model Family
ZT 37
Compressor Type
cargo_compressor
Pressure (bar)
25
Capacity (Nm³/h)
600
Stages
3
Common Failures & Inspection Points
- Seal leakage can release process gas, noticed by gas detection, odour where applicable or loss of system pressure
- Restricted suction flow or fouled filters reduce capacity, noticed as low suction pressure and reduced transfer or conditioning performance
- Cooling deficiency raises discharge temperature, noticed as temperature alarms or compressor trips
- Valve or internal compression-element wear lowers volumetric efficiency, noticed as longer operating time and poor pressure build-up
- Control, anti-surge or shutdown interlock faults can cause unstable operation or unexpected trips
Service: Inspect the compressor and connected cargo piping for leakage, condition of seals, vibration, lubrication and cooling performance. Function-test local and remote controls, shutdowns, gas-detection interfaces and emergency stops in accordance with the vessel's procedures. Verify model-specific limits, permissible cargo media and service clearances from manufacturer and vessel documentation.
Spare Parts: Carry approved seal kits, gaskets and O-rings, filters, lubrication consumables where applicable, control-valve or solenoid parts and critical sensors specified for the installed cargo compressor.
Use Cases: Used on tankers, gas carriers and other vessels with cargo systems requiring vapour compression, recovery, transfer or pressure control.
Daikin ZT 37 1000/15
unverified
Model Family
ZT 37
Compressor Type
cargo_compressor
Pressure (bar)
15
Capacity (Nm³/h)
1000
Stages
3
Common Failures & Inspection Points
- Seal leakage can release process gas, noticed by gas detection, odour where applicable or loss of system pressure
- Restricted suction flow or fouled filters reduce capacity, noticed as low suction pressure and reduced transfer or conditioning performance
- Cooling deficiency raises discharge temperature, noticed as temperature alarms or compressor trips
- Valve or internal compression-element wear lowers volumetric efficiency, noticed as longer operating time and poor pressure build-up
- Control, anti-surge or shutdown interlock faults can cause unstable operation or unexpected trips
Service: Inspect the compressor and connected cargo piping for leakage, condition of seals, vibration, lubrication and cooling performance. Function-test local and remote controls, shutdowns, gas-detection interfaces and emergency stops in accordance with the vessel's procedures. Verify model-specific limits, permissible cargo media and service clearances from manufacturer and vessel documentation.
Spare Parts: Carry approved seal kits, gaskets and O-rings, filters, lubrication consumables where applicable, control-valve or solenoid parts and critical sensors specified for the installed cargo compressor.
Use Cases: Used on tankers, gas carriers and other vessels with cargo systems requiring vapour compression, recovery, transfer or pressure control.
Daikin ZT 37 1000/25
unverified
Model Family
ZT 37
Compressor Type
cargo_compressor
Pressure (bar)
25
Capacity (Nm³/h)
1000
Stages
3
Common Failures & Inspection Points
- Seal leakage can release process gas, noticed by gas detection, odour where applicable or loss of system pressure
- Restricted suction flow or fouled filters reduce capacity, noticed as low suction pressure and reduced transfer or conditioning performance
- Cooling deficiency raises discharge temperature, noticed as temperature alarms or compressor trips
- Valve or internal compression-element wear lowers volumetric efficiency, noticed as longer operating time and poor pressure build-up
- Control, anti-surge or shutdown interlock faults can cause unstable operation or unexpected trips
Service: Inspect the compressor and connected cargo piping for leakage, condition of seals, vibration, lubrication and cooling performance. Function-test local and remote controls, shutdowns, gas-detection interfaces and emergency stops in accordance with the vessel's procedures. Verify model-specific limits, permissible cargo media and service clearances from manufacturer and vessel documentation.
Spare Parts: Carry approved seal kits, gaskets and O-rings, filters, lubrication consumables where applicable, control-valve or solenoid parts and critical sensors specified for the installed cargo compressor.
Use Cases: Used on tankers, gas carriers and other vessels with cargo systems requiring vapour compression, recovery, transfer or pressure control.
Daikin ZT 37 1500/15
unverified
Model Family
ZT 37
Compressor Type
cargo_compressor
Pressure (bar)
15
Capacity (Nm³/h)
1500
Stages
3
Common Failures & Inspection Points
- Seal leakage can release process gas, noticed by gas detection, odour where applicable or loss of system pressure
- Restricted suction flow or fouled filters reduce capacity, noticed as low suction pressure and reduced transfer or conditioning performance
- Cooling deficiency raises discharge temperature, noticed as temperature alarms or compressor trips
- Valve or internal compression-element wear lowers volumetric efficiency, noticed as longer operating time and poor pressure build-up
- Control, anti-surge or shutdown interlock faults can cause unstable operation or unexpected trips
Service: Inspect the compressor and connected cargo piping for leakage, condition of seals, vibration, lubrication and cooling performance. Function-test local and remote controls, shutdowns, gas-detection interfaces and emergency stops in accordance with the vessel's procedures. Verify model-specific limits, permissible cargo media and service clearances from manufacturer and vessel documentation.
Spare Parts: Carry approved seal kits, gaskets and O-rings, filters, lubrication consumables where applicable, control-valve or solenoid parts and critical sensors specified for the installed cargo compressor.
Use Cases: Used on tankers, gas carriers and other vessels with cargo systems requiring vapour compression, recovery, transfer or pressure control.
Daikin ZT 37 1500/25
unverified
Model Family
ZT 37
Compressor Type
cargo_compressor
Pressure (bar)
25
Capacity (Nm³/h)
1500
Stages
3
Common Failures & Inspection Points
- Seal leakage can release process gas, noticed by gas detection, odour where applicable or loss of system pressure
- Restricted suction flow or fouled filters reduce capacity, noticed as low suction pressure and reduced transfer or conditioning performance
- Cooling deficiency raises discharge temperature, noticed as temperature alarms or compressor trips
- Valve or internal compression-element wear lowers volumetric efficiency, noticed as longer operating time and poor pressure build-up
- Control, anti-surge or shutdown interlock faults can cause unstable operation or unexpected trips
Service: Inspect the compressor and connected cargo piping for leakage, condition of seals, vibration, lubrication and cooling performance. Function-test local and remote controls, shutdowns, gas-detection interfaces and emergency stops in accordance with the vessel's procedures. Verify model-specific limits, permissible cargo media and service clearances from manufacturer and vessel documentation.
Spare Parts: Carry approved seal kits, gaskets and O-rings, filters, lubrication consumables where applicable, control-valve or solenoid parts and critical sensors specified for the installed cargo compressor.
Use Cases: Used on tankers, gas carriers and other vessels with cargo systems requiring vapour compression, recovery, transfer or pressure control.
Daikin ZT 55 Series
unverified
Model Family
ZT 55
Compressor Type
cargo_compressor
Common Failures & Inspection Points
- Suction filter restriction, valve fouling, or poor inlet conditions reduce capacity and cause long running time or low final pressure
- Discharge or suction valve wear from deposits, fatigue, or contamination causes reduced compression, high stage temperatures, or abnormal pulsation
- Lubrication problems from low oil level, contamination, or pump failure cause high bearing temperature, noise, or low oil-pressure alarms
- Cooler fouling or cooling-water restriction causes high discharge temperature and thermal trips
- Seal, piston ring, packing, rotor, or gasket wear causes gas leakage, oil carryover, reduced capacity, or frequent cycling
Service: Trend stage pressures and temperatures, oil condition, cooling performance, running time, leakage, vibration, and safety trips. Inspect filters, valves, coolers, drains, separators, unloaders, drive components, and relief devices; use manufacturer data for exact pressure settings and wear limits.
Spare Parts: Carry the applicable valve service kits, piston rings or sealing elements, gaskets, filters, lubricating-system parts, belts or coupling elements, and critical sensors or unloaders recommended for the installed compressor.
Use Cases: Used on merchant ships, offshore vessels, passenger ships, fishing vessels, and workboats for starting air, service/control air, refrigeration, cargo gas, and specialized process duties.
Daikin ZT 55 1000/15
unverified
Model Family
ZT 55
Compressor Type
cargo_compressor
Pressure (bar)
15
Capacity (Nm³/h)
1000
Stages
3
Common Failures & Inspection Points
- Seal leakage can release process gas, noticed by gas detection, odour where applicable or loss of system pressure
- Restricted suction flow or fouled filters reduce capacity, noticed as low suction pressure and reduced transfer or conditioning performance
- Cooling deficiency raises discharge temperature, noticed as temperature alarms or compressor trips
- Valve or internal compression-element wear lowers volumetric efficiency, noticed as longer operating time and poor pressure build-up
- Control, anti-surge or shutdown interlock faults can cause unstable operation or unexpected trips
Service: Inspect the compressor and connected cargo piping for leakage, condition of seals, vibration, lubrication and cooling performance. Function-test local and remote controls, shutdowns, gas-detection interfaces and emergency stops in accordance with the vessel's procedures. Verify model-specific limits, permissible cargo media and service clearances from manufacturer and vessel documentation.
Spare Parts: Carry approved seal kits, gaskets and O-rings, filters, lubrication consumables where applicable, control-valve or solenoid parts and critical sensors specified for the installed cargo compressor.
Use Cases: Used on tankers, gas carriers and other vessels with cargo systems requiring vapour compression, recovery, transfer or pressure control.
Daikin ZT 55 1000/25
unverified
Model Family
ZT 55
Compressor Type
cargo_compressor
Pressure (bar)
25
Capacity (Nm³/h)
1000
Stages
3
Common Failures & Inspection Points
- Seal leakage can release process gas, noticed by gas detection, odour where applicable or loss of system pressure
- Restricted suction flow or fouled filters reduce capacity, noticed as low suction pressure and reduced transfer or conditioning performance
- Cooling deficiency raises discharge temperature, noticed as temperature alarms or compressor trips
- Valve or internal compression-element wear lowers volumetric efficiency, noticed as longer operating time and poor pressure build-up
- Control, anti-surge or shutdown interlock faults can cause unstable operation or unexpected trips
Service: Inspect the compressor and connected cargo piping for leakage, condition of seals, vibration, lubrication and cooling performance. Function-test local and remote controls, shutdowns, gas-detection interfaces and emergency stops in accordance with the vessel's procedures. Verify model-specific limits, permissible cargo media and service clearances from manufacturer and vessel documentation.
Spare Parts: Carry approved seal kits, gaskets and O-rings, filters, lubrication consumables where applicable, control-valve or solenoid parts and critical sensors specified for the installed cargo compressor.
Use Cases: Used on tankers, gas carriers and other vessels with cargo systems requiring vapour compression, recovery, transfer or pressure control.
Daikin ZT 55 1500/15
unverified
Model Family
ZT 55
Compressor Type
cargo_compressor
Pressure (bar)
15
Capacity (Nm³/h)
1500
Stages
3
Common Failures & Inspection Points
- Seal leakage can release process gas, noticed by gas detection, odour where applicable or loss of system pressure
- Restricted suction flow or fouled filters reduce capacity, noticed as low suction pressure and reduced transfer or conditioning performance
- Cooling deficiency raises discharge temperature, noticed as temperature alarms or compressor trips
- Valve or internal compression-element wear lowers volumetric efficiency, noticed as longer operating time and poor pressure build-up
- Control, anti-surge or shutdown interlock faults can cause unstable operation or unexpected trips
Service: Inspect the compressor and connected cargo piping for leakage, condition of seals, vibration, lubrication and cooling performance. Function-test local and remote controls, shutdowns, gas-detection interfaces and emergency stops in accordance with the vessel's procedures. Verify model-specific limits, permissible cargo media and service clearances from manufacturer and vessel documentation.
Spare Parts: Carry approved seal kits, gaskets and O-rings, filters, lubrication consumables where applicable, control-valve or solenoid parts and critical sensors specified for the installed cargo compressor.
Use Cases: Used on tankers, gas carriers and other vessels with cargo systems requiring vapour compression, recovery, transfer or pressure control.
Daikin ZT 55 1500/25
unverified
Model Family
ZT 55
Compressor Type
cargo_compressor
Pressure (bar)
25
Capacity (Nm³/h)
1500
Stages
3
Common Failures & Inspection Points
- Seal leakage can release process gas, noticed by gas detection, odour where applicable or loss of system pressure
- Restricted suction flow or fouled filters reduce capacity, noticed as low suction pressure and reduced transfer or conditioning performance
- Cooling deficiency raises discharge temperature, noticed as temperature alarms or compressor trips
- Valve or internal compression-element wear lowers volumetric efficiency, noticed as longer operating time and poor pressure build-up
- Control, anti-surge or shutdown interlock faults can cause unstable operation or unexpected trips
Service: Inspect the compressor and connected cargo piping for leakage, condition of seals, vibration, lubrication and cooling performance. Function-test local and remote controls, shutdowns, gas-detection interfaces and emergency stops in accordance with the vessel's procedures. Verify model-specific limits, permissible cargo media and service clearances from manufacturer and vessel documentation.
Spare Parts: Carry approved seal kits, gaskets and O-rings, filters, lubrication consumables where applicable, control-valve or solenoid parts and critical sensors specified for the installed cargo compressor.
Use Cases: Used on tankers, gas carriers and other vessels with cargo systems requiring vapour compression, recovery, transfer or pressure control.
Daikin ZT 55 2000/15
unverified
Model Family
ZT 55
Compressor Type
cargo_compressor
Pressure (bar)
15
Capacity (Nm³/h)
2000
Stages
3
Common Failures & Inspection Points
- Seal leakage can release process gas, noticed by gas detection, odour where applicable or loss of system pressure
- Restricted suction flow or fouled filters reduce capacity, noticed as low suction pressure and reduced transfer or conditioning performance
- Cooling deficiency raises discharge temperature, noticed as temperature alarms or compressor trips
- Valve or internal compression-element wear lowers volumetric efficiency, noticed as longer operating time and poor pressure build-up
- Control, anti-surge or shutdown interlock faults can cause unstable operation or unexpected trips
Service: Inspect the compressor and connected cargo piping for leakage, condition of seals, vibration, lubrication and cooling performance. Function-test local and remote controls, shutdowns, gas-detection interfaces and emergency stops in accordance with the vessel's procedures. Verify model-specific limits, permissible cargo media and service clearances from manufacturer and vessel documentation.
Spare Parts: Carry approved seal kits, gaskets and O-rings, filters, lubrication consumables where applicable, control-valve or solenoid parts and critical sensors specified for the installed cargo compressor.
Use Cases: Used on tankers, gas carriers and other vessels with cargo systems requiring vapour compression, recovery, transfer or pressure control.
Daikin ZT 55 2000/25
unverified
Model Family
ZT 55
Compressor Type
cargo_compressor
Pressure (bar)
25
Capacity (Nm³/h)
2000
Stages
3
Common Failures & Inspection Points
- Seal leakage can release process gas, noticed by gas detection, odour where applicable or loss of system pressure
- Restricted suction flow or fouled filters reduce capacity, noticed as low suction pressure and reduced transfer or conditioning performance
- Cooling deficiency raises discharge temperature, noticed as temperature alarms or compressor trips
- Valve or internal compression-element wear lowers volumetric efficiency, noticed as longer operating time and poor pressure build-up
- Control, anti-surge or shutdown interlock faults can cause unstable operation or unexpected trips
Service: Inspect the compressor and connected cargo piping for leakage, condition of seals, vibration, lubrication and cooling performance. Function-test local and remote controls, shutdowns, gas-detection interfaces and emergency stops in accordance with the vessel's procedures. Verify model-specific limits, permissible cargo media and service clearances from manufacturer and vessel documentation.
Spare Parts: Carry approved seal kits, gaskets and O-rings, filters, lubrication consumables where applicable, control-valve or solenoid parts and critical sensors specified for the installed cargo compressor.
Use Cases: Used on tankers, gas carriers and other vessels with cargo systems requiring vapour compression, recovery, transfer or pressure control.
Burckhardt
24
BD-2000
2000 m3/h
· LNG / LPG / Gas Cargo
· reciprocating cargo compressor
Type
reciprocating
Capacity (m³/h)
2000
Origin
Switzerland
Common Failures & Inspection Points
- Piston ring wear
- Valve plate breakage
- Crosshead bearing failure
- Cylinder liner scoring
Service: Overhaul at 8000 hours. Valve inspection every 2000 hours. Oil analysis monthly.
Spare Parts: Burckhardt: Spare parts from manufacturer. Lead time: 3-8 weeks. Gaskets and valve inserts to be held on board.
Strengths
- Proven Swiss engineering with long service history in LPG transport
- High pressure capability suitable for fast loading/unloading cycles
- Modular design allows on‑board overhaul at 8 000 h and staged part replacement
- Robust oil‑lubricated system tolerates harsh marine environments
- Standardised valve inspection interval (every 2 000 h) simplifies maintenance planning
Weaknesses
- Higher vibration and noise compared with screw or scroll compressors
- Wear items such as piston rings, valve plates and crosshead bearings require regular monitoring
- Oil‑lubricated design demands strict oil analysis and contamination control
- Longer start‑up time than oil‑free alternatives
- Physical footprint larger than compact screw units, affecting tank deck layout
Typical Vessels:
LPG CarrierChemical Tanker (pressurised gas cargo)Multi‑product tanker with LPG compartments
Certifications:
DNV
Decision Guide: Choose if: you need a high‑throughput, proven reciprocating compressor for LPG carriers where pressure rating and serviceability are critical. Avoid if: vessel space is limited, low vibration/noise is a priority, or an oil‑free screw/compressor solution better matches operational philosophy.
Use Cases: The BD-2000 is normally installed on large LPG carriers (10 000–30 000 m³ cargo capacity) to provide rapid pressurisation during loading at shore facilities and to maintain cargo pressure during transit. It is also fitted on chemical tankers carrying high‑pressure liquefied gases where a robust, serviceable compressor is required.
BD-5000
5000 m3/h
· LNG / LPG / Gas Cargo
· Reciprocating piston compressor
Type
reciprocating
Capacity (m³/h)
5000
Common Failures & Inspection Points
- Valve failure
- Piston ring wear
- Rod packing leak
- Bearing failure
Service: Large LNG carrier compressor. Same Burckhardt service intervals.
Spare Parts: Burckhardt: Spare parts from manufacturer. Lead time: 3-8 weeks. Gaskets and valve inserts to be held on board.
Strengths
- Very high flow capacity (≈5 000 m³/h) suitable for large LNG carriers
- Proven reliability in cryogenic LNG service with extensive fleet experience
- Modular design allows quick on‑site maintenance and part replacement
- Integrated control and monitoring system compatible with common ship automation platforms
- Robust construction tolerates the low temperatures and high pressures of boil‑off gas handling
Weaknesses
- Large physical footprint and weight compared with oil‑free screw or scroll compressors
- Higher vibration and noise levels, requiring additional isolation measures
- Oil‑lubricated design necessitates oil management and periodic oil changes
- Wear items (piston rings, rod packings, bearings) require scheduled overhauls
- Efficiency drops noticeably at part‑load conditions
Typical Vessels:
LNG CarrierFSRULarge LPG CarrierGas Carrier
Certifications:
DNV GLABS
Decision Guide: Choose if you need a proven, high‑capacity compressor for large LNG carriers or FSRUs where cryogenic performance and fleet support are critical. Avoid if vessel space is limited, low‑load efficiency is paramount, or an oil‑free solution is required to simplify maintenance.
Use Cases: The BD-5000 is normally installed as the main cargo gas booster on >150 000 m³ LNG carriers, handling boil‑off gas re‑compression and cargo loading/unloading. It is also used in FSRU installations for continuous LNG regasification/re‑liquefaction loops.
BD-10000
10000 m3/h
· LNG / LPG / Gas Cargo
· Reciprocating gas compressor
Type
reciprocating
Capacity (m³/h)
10000
Common Failures & Inspection Points
- Crosshead pin wear
- Cylinder liner scoring
- Valve breakage
- Foundation bolt loosening
Service: Largest Burckhardt for gas carriers. 8000-hour overhaul.
Spare Parts: Burckhardt: Spare parts from manufacturer. Lead time: 3-8 weeks. Gaskets and valve inserts to be held on board.
Strengths
- Highest single‑unit capacity in Burckhardt’s gas‑carrier line, reducing the number of compressors needed
- Proven marine‑grade design with extensive service history on LNG/LPG vessels
- Modular construction allows relatively straightforward installation and replacement of wear parts
- 8000‑hour overhaul interval aligns with typical voyage cycles for large carriers
Weaknesses
- Large footprint and heavy foundation requirements increase ship‑design complexity
- Reciprocating motion generates higher vibration and noise compared with oil‑free screw or centrifugal units
- Known wear points such as crosshead pins, cylinder liners and valve seats demand diligent monitoring
- Longer start‑up time than high‑speed screw compressors
Typical Vessels:
LNG CarrierLPG CarrierPressurised Gas Tanker (e.g., ethylene, ammonia)Chemical tanker handling high‑pressure gas cargoes
Decision Guide: Choose if: you need very high compression capacity on a large gas carrier and prefer a proven, marine‑rated reciprocating design with an established overhaul schedule. Avoid if: ship space or weight is at a premium, vibration sensitivity is critical, or you favour oil‑free screw/cenrifugal compressors for lower noise and quicker start‑up.
Use Cases: Typically installed as the primary cargo compressor on new‑build LNG/LPG carriers of 150 000 m³+ deadweight, or as a retrofit to increase compression throughput on existing vessels that require higher off‑loading rates or pressure boosting for shore facilities.
Burckhardt Laby-GI LNG Compressor
unverified
· LNG / LPG
Compressor Type
reciprocating
Medium
LNG/LPG/ethylene
Series
Laby-GI
Common Failures & Inspection Points
- Seal, gasket or process-connection leakage caused by wear, thermal cycling, corrosion or cargo incompatibility, resulting in cargo or vapor leakage
- Valve, actuator, pump or drive failure caused by sticking, wear, electrical or hydraulic faults, resulting in incorrect routing or reduced cargo-handling capacity
- Sensor or measuring-element fouling or drift caused by cargo deposits, contamination or calibration error, resulting in implausible readings or alarms
- Process fouling, icing or blockage caused by cargo residue, temperature conditions or debris, resulting in restricted flow or unstable operation
- Control, shutdown or hazardous-area electrical fault caused by wiring, electronics or configuration problems, resulting in unavailable remote operation or protective trips
Service: Inspect process connections, seals, valves, actuators, pumps, sensors, piping and supports applicable to the listed cargo equipment. Maintain material compatibility with the actual cargo and clean deposits before they restrict movement or measurement. Trend pressure, temperature, level, flow or operating response against established normal conditions. Function-test remote controls, alarms, shutdowns and emergency stops before cargo operations. Inspect hazardous-area electrical and bonding arrangements for integrity. Refer to the manufacturer documentation for the exact figure for cargo compatibility, calibration, operating limits and wear criteria.
Spare Parts: Keep cargo-compatible seals and gaskets, valve service kits, sensors, cable glands, pump or actuator parts and manufacturer-recommended process components. Replacement materials must match the certified cargo service and hazardous-area approval.
Use Cases: It is used for LPG and LNG cargo handling on merchant ships, passenger vessels, offshore units or other vessel types where this equipment category is fitted.
Labyrinth-piston for LNG BOG/fuel gas
Burckhardt API618 Process Gas Compressor 2-Stage
unverified
· LNG / LPG
Compressor Type
reciprocating
Medium
LNG/LPG/ethylene
Series
API618
Common Failures & Inspection Points
- Valve, seal or piping leakage can cause loss of containment, detected by pressure loss, gas detection or visible leakage
- Pump, compressor or drive deterioration can reduce transfer performance, seen as low capacity, vibration or high temperature
- Sensor or transmitter faults can corrupt cargo-control data and alarms
- Control or interlock faults can prevent starting or safe sequence completion
- Fouling, icing, deposits or contamination in cargo-service components can restrict flow and reduce efficiency
Service: Inspect containment, seals, valves, drives, instrumentation, shutdowns and cargo-control interfaces according to the cargo-system type. Trend vibration, pressure, temperature and alarm history where applicable. Exact operating limits and cargo compatibility requirements must follow approved cargo manuals and manufacturer documentation.
Spare Parts: Carry seals, gaskets, filters, sensors, actuator parts and manufacturer-recommended critical compressor/pump or control components compatible with the cargo service.
Use Cases: Used on oil, chemical and gas carriers for cargo transfer, conditioning, tank cleaning, pressure control and cargo-operation monitoring.
2-stage recip for LPG
Burckhardt API618 Process Gas Compressor 3-Stage
unverified
· LNG / LPG
Compressor Type
reciprocating
Medium
LNG/LPG/ethylene
Series
API618
Common Failures & Inspection Points
- Valve, seal or piping leakage can cause loss of containment, detected by pressure loss, gas detection or visible leakage
- Pump, compressor or drive deterioration can reduce transfer performance, seen as low capacity, vibration or high temperature
- Sensor or transmitter faults can corrupt cargo-control data and alarms
- Control or interlock faults can prevent starting or safe sequence completion
- Fouling, icing, deposits or contamination in cargo-service components can restrict flow and reduce efficiency
Service: Inspect containment, seals, valves, drives, instrumentation, shutdowns and cargo-control interfaces according to the cargo-system type. Trend vibration, pressure, temperature and alarm history where applicable. Exact operating limits and cargo compatibility requirements must follow approved cargo manuals and manufacturer documentation.
Spare Parts: Carry seals, gaskets, filters, sensors, actuator parts and manufacturer-recommended critical compressor/pump or control components compatible with the cargo service.
Use Cases: Used on oil, chemical and gas carriers for cargo transfer, conditioning, tank cleaning, pressure control and cargo-operation monitoring.
3-stage recip for ethylene
Burckhardt Laby-GI 250 bar ME-GI Supply
unverified
· LNG / LPG
Compressor Type
reciprocating
Medium
LNG/LPG/ethylene
Series
Laby-GI
Common Failures & Inspection Points
- Valve, seal or piping leakage can cause loss of containment, detected by pressure loss, gas detection or visible leakage
- Pump, compressor or drive deterioration can reduce transfer performance, seen as low capacity, vibration or high temperature
- Sensor or transmitter faults can corrupt cargo-control data and alarms
- Control or interlock faults can prevent starting or safe sequence completion
- Fouling, icing, deposits or contamination in cargo-service components can restrict flow and reduce efficiency
Service: Inspect containment, seals, valves, drives, instrumentation, shutdowns and cargo-control interfaces according to the cargo-system type. Trend vibration, pressure, temperature and alarm history where applicable. Exact operating limits and cargo compatibility requirements must follow approved cargo manuals and manufacturer documentation.
Spare Parts: Carry seals, gaskets, filters, sensors, actuator parts and manufacturer-recommended critical compressor/pump or control components compatible with the cargo service.
Use Cases: Used on oil, chemical and gas carriers for cargo transfer, conditioning, tank cleaning, pressure control and cargo-operation monitoring.
ME-GI fuel gas supply compressor
Burckhardt Laby-GI Series
unverified
Model Family
Laby-GI
Compressor Type
cargo_compressor
Max. Pressure (bar)
40
Common Failures & Inspection Points
- Suction filter restriction, valve fouling, or poor inlet conditions reduce capacity and cause long running time or low final pressure
- Discharge or suction valve wear from deposits, fatigue, or contamination causes reduced compression, high stage temperatures, or abnormal pulsation
- Lubrication problems from low oil level, contamination, or pump failure cause high bearing temperature, noise, or low oil-pressure alarms
- Cooler fouling or cooling-water restriction causes high discharge temperature and thermal trips
- Seal, piston ring, packing, rotor, or gasket wear causes gas leakage, oil carryover, reduced capacity, or frequent cycling
Service: Trend stage pressures and temperatures, oil condition, cooling performance, running time, leakage, vibration, and safety trips. Inspect filters, valves, coolers, drains, separators, unloaders, drive components, and relief devices; use manufacturer data for exact pressure settings and wear limits.
Spare Parts: Carry the applicable valve service kits, piston rings or sealing elements, gaskets, filters, lubricating-system parts, belts or coupling elements, and critical sensors or unloaders recommended for the installed compressor.
Use Cases: Used on merchant ships, offshore vessels, passenger ships, fishing vessels, and workboats for starting air, service/control air, refrigeration, cargo gas, and specialized process duties.
Burckhardt Laby-GI 500/15
unverified
Model Family
Laby-GI
Compressor Type
cargo_compressor
Pressure (bar)
15
Capacity (Nm³/h)
500
Stages
3
Common Failures & Inspection Points
- Valve or compression-element wear caused by contamination, inadequate lubrication or long service, resulting in reduced capacity and abnormal temperatures
- Seal or packing leakage caused by wear, thermal distortion or damaged sealing components, resulting in air or gas leakage and reduced performance
- Cooling-system fouling or loss caused by scale, blocked passages or pump faults, resulting in elevated discharge or bearing temperatures
- Lubrication or bearing failure where applicable caused by low oil supply, contamination or misalignment, resulting in vibration, temperature rise or trips
- Capacity-control, unloading or non-return valve malfunction caused by sticking, actuator or control faults, resulting in unstable operation, difficult starting or abnormal cycling
Service: Monitor suction and discharge conditions, temperatures, vibration and capacity-control behavior in accordance with the vessel procedures. Inspect coolers, valves, filters, drains, bearings and lubrication system where applicable. Check for air, gas, oil and cooling-water leakage and investigate recurring trips rather than repeatedly restarting the machine. Function-test unloading, capacity-control and protective devices using approved procedures. Keep system cleanliness and material compatibility under control. Refer to manufacturer and class documentation for exact clearances, alarm limits and overhaul criteria.
Spare Parts: Keep model-correct seals or packing, valve or compression-element service parts, bearings, filters, gaskets and capacity-control or unloader components recommended by the manufacturer. Service-critical materials must match the handled medium. Confirm all parts against the compressor serial number and application.
Use Cases: Cargo vapor handling on gas or specialized cargo vessels.
Burckhardt Laby-GI 1000/15
unverified
Model Family
Laby-GI
Compressor Type
cargo_compressor
Pressure (bar)
15
Capacity (Nm³/h)
1000
Stages
3
Common Failures & Inspection Points
- Restricted suction or dirty filters reduce delivered capacity and cause long running periods or low discharge
- Valve, piston, rotor or compression-element wear causes reduced capacity, abnormal temperature or oil carry-over
- Cooling restriction causes high discharge temperature and protective trips
- Lubrication or bearing deterioration causes abnormal noise, vibration or rising temperature
- Automatic control, unloader, pressure or capacity-regulation faults cause cycling, failure to start or shutdown
Service: Inspect intake or suction path, compression elements, lubrication, cooling, drains or separators, relief devices, non-return valves and controls. Review capacity, temperature, pressure and alarm trends. Test automatic start/stop and protective functions under an approved procedure. Refer to the manufacturer documentation for the exact figure for pressure, temperature, clearance and service limits.
Spare Parts: Carry filters, valve or seal kits, approved lubricant where applicable, belts or coupling parts, drain or control valves, pressure switches and control relays.
Use Cases: Starting air, service air, deck air, refrigeration and cargo-gas compression duties.
Burckhardt Laby-GI 2000/15
unverified
Model Family
Laby-GI
Compressor Type
cargo_compressor
Pressure (bar)
15
Capacity (Nm³/h)
2000
Stages
3
Common Failures & Inspection Points
- Restricted suction or dirty filters reduce delivered capacity and cause long running periods or low discharge
- Valve, piston, rotor or compression-element wear causes reduced capacity, abnormal temperature or oil carry-over
- Cooling restriction causes high discharge temperature and protective trips
- Lubrication or bearing deterioration causes abnormal noise, vibration or rising temperature
- Automatic control, unloader, pressure or capacity-regulation faults cause cycling, failure to start or shutdown
Service: Inspect intake or suction path, compression elements, lubrication, cooling, drains or separators, relief devices, non-return valves and controls. Review capacity, temperature, pressure and alarm trends. Test automatic start/stop and protective functions under an approved procedure. Refer to the manufacturer documentation for the exact figure for pressure, temperature, clearance and service limits.
Spare Parts: Carry filters, valve or seal kits, approved lubricant where applicable, belts or coupling parts, drain or control valves, pressure switches and control relays.
Use Cases: Starting air, service air, deck air, refrigeration and cargo-gas compression duties.
Burckhardt Laby-GI 500/30
unverified
Model Family
Laby-GI
Compressor Type
cargo_compressor
Pressure (bar)
30
Capacity (Nm³/h)
500
Stages
3
Common Failures & Inspection Points
- Valve or compression-element wear caused by contamination, inadequate lubrication or long service, resulting in reduced capacity and abnormal temperatures
- Seal or packing leakage caused by wear, thermal distortion or damaged sealing components, resulting in air or gas leakage and reduced performance
- Cooling-system fouling or loss caused by scale, blocked passages or pump faults, resulting in elevated discharge or bearing temperatures
- Lubrication or bearing failure where applicable caused by low oil supply, contamination or misalignment, resulting in vibration, temperature rise or trips
- Capacity-control, unloading or non-return valve malfunction caused by sticking, actuator or control faults, resulting in unstable operation, difficult starting or abnormal cycling
Service: Monitor suction and discharge conditions, temperatures, vibration and capacity-control behavior in accordance with the vessel procedures. Inspect coolers, valves, filters, drains, bearings and lubrication system where applicable. Check for air, gas, oil and cooling-water leakage and investigate recurring trips rather than repeatedly restarting the machine. Function-test unloading, capacity-control and protective devices using approved procedures. Keep system cleanliness and material compatibility under control. Refer to manufacturer and class documentation for exact clearances, alarm limits and overhaul criteria.
Spare Parts: Keep model-correct seals or packing, valve or compression-element service parts, bearings, filters, gaskets and capacity-control or unloader components recommended by the manufacturer. Service-critical materials must match the handled medium. Confirm all parts against the compressor serial number and application.
Use Cases: Cargo vapor handling on gas or specialized cargo vessels.
Burckhardt Laby-GI 1000/30
unverified
Model Family
Laby-GI
Compressor Type
cargo_compressor
Pressure (bar)
30
Capacity (Nm³/h)
1000
Stages
3
Common Failures & Inspection Points
- Restricted suction or dirty filters reduce delivered capacity and cause long running periods or low discharge
- Valve, piston, rotor or compression-element wear causes reduced capacity, abnormal temperature or oil carry-over
- Cooling restriction causes high discharge temperature and protective trips
- Lubrication or bearing deterioration causes abnormal noise, vibration or rising temperature
- Automatic control, unloader, pressure or capacity-regulation faults cause cycling, failure to start or shutdown
Service: Inspect intake or suction path, compression elements, lubrication, cooling, drains or separators, relief devices, non-return valves and controls. Review capacity, temperature, pressure and alarm trends. Test automatic start/stop and protective functions under an approved procedure. Refer to the manufacturer documentation for the exact figure for pressure, temperature, clearance and service limits.
Spare Parts: Carry filters, valve or seal kits, approved lubricant where applicable, belts or coupling parts, drain or control valves, pressure switches and control relays.
Use Cases: Starting air, service air, deck air, refrigeration and cargo-gas compression duties.
Burckhardt Laby-GI 2000/30
unverified
Model Family
Laby-GI
Compressor Type
cargo_compressor
Pressure (bar)
30
Capacity (Nm³/h)
2000
Stages
3
Common Failures & Inspection Points
- Restricted suction or dirty filters reduce delivered capacity and cause long running periods or low discharge
- Valve, piston, rotor or compression-element wear causes reduced capacity, abnormal temperature or oil carry-over
- Cooling restriction causes high discharge temperature and protective trips
- Lubrication or bearing deterioration causes abnormal noise, vibration or rising temperature
- Automatic control, unloader, pressure or capacity-regulation faults cause cycling, failure to start or shutdown
Service: Inspect intake or suction path, compression elements, lubrication, cooling, drains or separators, relief devices, non-return valves and controls. Review capacity, temperature, pressure and alarm trends. Test automatic start/stop and protective functions under an approved procedure. Refer to the manufacturer documentation for the exact figure for pressure, temperature, clearance and service limits.
Spare Parts: Carry filters, valve or seal kits, approved lubricant where applicable, belts or coupling parts, drain or control valves, pressure switches and control relays.
Use Cases: Starting air, service air, deck air, refrigeration and cargo-gas compression duties.
Burckhardt Laby-GI 500/40
unverified
Model Family
Laby-GI
Compressor Type
cargo_compressor
Pressure (bar)
40
Capacity (Nm³/h)
500
Stages
4
Common Failures & Inspection Points
- Valve or compression-element wear caused by contamination, inadequate lubrication or long service, resulting in reduced capacity and abnormal temperatures
- Seal or packing leakage caused by wear, thermal distortion or damaged sealing components, resulting in air or gas leakage and reduced performance
- Cooling-system fouling or loss caused by scale, blocked passages or pump faults, resulting in elevated discharge or bearing temperatures
- Lubrication or bearing failure where applicable caused by low oil supply, contamination or misalignment, resulting in vibration, temperature rise or trips
- Capacity-control, unloading or non-return valve malfunction caused by sticking, actuator or control faults, resulting in unstable operation, difficult starting or abnormal cycling
Service: Monitor suction and discharge conditions, temperatures, vibration and capacity-control behavior in accordance with the vessel procedures. Inspect coolers, valves, filters, drains, bearings and lubrication system where applicable. Check for air, gas, oil and cooling-water leakage and investigate recurring trips rather than repeatedly restarting the machine. Function-test unloading, capacity-control and protective devices using approved procedures. Keep system cleanliness and material compatibility under control. Refer to manufacturer and class documentation for exact clearances, alarm limits and overhaul criteria.
Spare Parts: Keep model-correct seals or packing, valve or compression-element service parts, bearings, filters, gaskets and capacity-control or unloader components recommended by the manufacturer. Service-critical materials must match the handled medium. Confirm all parts against the compressor serial number and application.
Use Cases: Cargo vapor handling on gas or specialized cargo vessels.
Burckhardt Laby-GI 1000/40
unverified
Model Family
Laby-GI
Compressor Type
cargo_compressor
Pressure (bar)
40
Capacity (Nm³/h)
1000
Stages
4
Common Failures & Inspection Points
- Restricted suction or dirty filters reduce delivered capacity and cause long running periods or low discharge
- Valve, piston, rotor or compression-element wear causes reduced capacity, abnormal temperature or oil carry-over
- Cooling restriction causes high discharge temperature and protective trips
- Lubrication or bearing deterioration causes abnormal noise, vibration or rising temperature
- Automatic control, unloader, pressure or capacity-regulation faults cause cycling, failure to start or shutdown
Service: Inspect intake or suction path, compression elements, lubrication, cooling, drains or separators, relief devices, non-return valves and controls. Review capacity, temperature, pressure and alarm trends. Test automatic start/stop and protective functions under an approved procedure. Refer to the manufacturer documentation for the exact figure for pressure, temperature, clearance and service limits.
Spare Parts: Carry filters, valve or seal kits, approved lubricant where applicable, belts or coupling parts, drain or control valves, pressure switches and control relays.
Use Cases: Starting air, service air, deck air, refrigeration and cargo-gas compression duties.
Burckhardt Laby-GI 2000/40
unverified
Model Family
Laby-GI
Compressor Type
cargo_compressor
Pressure (bar)
40
Capacity (Nm³/h)
2000
Stages
4
Common Failures & Inspection Points
- Restricted suction or dirty filters reduce delivered capacity and cause long running periods or low discharge
- Valve, piston, rotor or compression-element wear causes reduced capacity, abnormal temperature or oil carry-over
- Cooling restriction causes high discharge temperature and protective trips
- Lubrication or bearing deterioration causes abnormal noise, vibration or rising temperature
- Automatic control, unloader, pressure or capacity-regulation faults cause cycling, failure to start or shutdown
Service: Inspect intake or suction path, compression elements, lubrication, cooling, drains or separators, relief devices, non-return valves and controls. Review capacity, temperature, pressure and alarm trends. Test automatic start/stop and protective functions under an approved procedure. Refer to the manufacturer documentation for the exact figure for pressure, temperature, clearance and service limits.
Spare Parts: Carry filters, valve or seal kits, approved lubricant where applicable, belts or coupling parts, drain or control valves, pressure switches and control relays.
Use Cases: Starting air, service air, deck air, refrigeration and cargo-gas compression duties.
Burckhardt API-618 Series
unverified
Model Family
API-618
Compressor Type
cargo_compressor
Max. Pressure (bar)
30
Common Failures & Inspection Points
- Suction filter restriction, valve fouling, or poor inlet conditions reduce capacity and cause long running time or low final pressure
- Discharge or suction valve wear from deposits, fatigue, or contamination causes reduced compression, high stage temperatures, or abnormal pulsation
- Lubrication problems from low oil level, contamination, or pump failure cause high bearing temperature, noise, or low oil-pressure alarms
- Cooler fouling or cooling-water restriction causes high discharge temperature and thermal trips
- Seal, piston ring, packing, rotor, or gasket wear causes gas leakage, oil carryover, reduced capacity, or frequent cycling
Service: Trend stage pressures and temperatures, oil condition, cooling performance, running time, leakage, vibration, and safety trips. Inspect filters, valves, coolers, drains, separators, unloaders, drive components, and relief devices; use manufacturer data for exact pressure settings and wear limits.
Spare Parts: Carry the applicable valve service kits, piston rings or sealing elements, gaskets, filters, lubricating-system parts, belts or coupling elements, and critical sensors or unloaders recommended for the installed compressor.
Use Cases: Used on merchant ships, offshore vessels, passenger ships, fishing vessels, and workboats for starting air, service/control air, refrigeration, cargo gas, and specialized process duties.
Burckhardt API-618 200/15
unverified
Model Family
API-618
Compressor Type
cargo_compressor
Pressure (bar)
15
Capacity (Nm³/h)
200
Stages
3
Common Failures & Inspection Points
- Valve or compression-element wear caused by contamination, inadequate lubrication or long service, resulting in reduced capacity and abnormal temperatures
- Seal or packing leakage caused by wear, thermal distortion or damaged sealing components, resulting in air or gas leakage and reduced performance
- Cooling-system fouling or loss caused by scale, blocked passages or pump faults, resulting in elevated discharge or bearing temperatures
- Lubrication or bearing failure where applicable caused by low oil supply, contamination or misalignment, resulting in vibration, temperature rise or trips
- Capacity-control, unloading or non-return valve malfunction caused by sticking, actuator or control faults, resulting in unstable operation, difficult starting or abnormal cycling
Service: Monitor suction and discharge conditions, temperatures, vibration and capacity-control behavior in accordance with the vessel procedures. Inspect coolers, valves, filters, drains, bearings and lubrication system where applicable. Check for air, gas, oil and cooling-water leakage and investigate recurring trips rather than repeatedly restarting the machine. Function-test unloading, capacity-control and protective devices using approved procedures. Keep system cleanliness and material compatibility under control. Refer to manufacturer and class documentation for exact clearances, alarm limits and overhaul criteria.
Spare Parts: Keep model-correct seals or packing, valve or compression-element service parts, bearings, filters, gaskets and capacity-control or unloader components recommended by the manufacturer. Service-critical materials must match the handled medium. Confirm all parts against the compressor serial number and application.
Use Cases: Cargo vapor handling on gas or specialized cargo vessels.
Burckhardt API-618 500/15
unverified
Model Family
API-618
Compressor Type
cargo_compressor
Pressure (bar)
15
Capacity (Nm³/h)
500
Stages
3
Common Failures & Inspection Points
- Valve or compression-element wear caused by contamination, inadequate lubrication or long service, resulting in reduced capacity and abnormal temperatures
- Seal or packing leakage caused by wear, thermal distortion or damaged sealing components, resulting in air or gas leakage and reduced performance
- Cooling-system fouling or loss caused by scale, blocked passages or pump faults, resulting in elevated discharge or bearing temperatures
- Lubrication or bearing failure where applicable caused by low oil supply, contamination or misalignment, resulting in vibration, temperature rise or trips
- Capacity-control, unloading or non-return valve malfunction caused by sticking, actuator or control faults, resulting in unstable operation, difficult starting or abnormal cycling
Service: Monitor suction and discharge conditions, temperatures, vibration and capacity-control behavior in accordance with the vessel procedures. Inspect coolers, valves, filters, drains, bearings and lubrication system where applicable. Check for air, gas, oil and cooling-water leakage and investigate recurring trips rather than repeatedly restarting the machine. Function-test unloading, capacity-control and protective devices using approved procedures. Keep system cleanliness and material compatibility under control. Refer to manufacturer and class documentation for exact clearances, alarm limits and overhaul criteria.
Spare Parts: Keep model-correct seals or packing, valve or compression-element service parts, bearings, filters, gaskets and capacity-control or unloader components recommended by the manufacturer. Service-critical materials must match the handled medium. Confirm all parts against the compressor serial number and application.
Use Cases: Cargo vapor handling on gas or specialized cargo vessels.
Burckhardt API-618 1000/15
unverified
Model Family
API-618
Compressor Type
cargo_compressor
Pressure (bar)
15
Capacity (Nm³/h)
1000
Stages
3
Common Failures & Inspection Points
- Restricted suction or dirty filters reduce delivered capacity and cause long running periods or low discharge
- Valve, piston, rotor or compression-element wear causes reduced capacity, abnormal temperature or oil carry-over
- Cooling restriction causes high discharge temperature and protective trips
- Lubrication or bearing deterioration causes abnormal noise, vibration or rising temperature
- Automatic control, unloader, pressure or capacity-regulation faults cause cycling, failure to start or shutdown
Service: Inspect intake or suction path, compression elements, lubrication, cooling, drains or separators, relief devices, non-return valves and controls. Review capacity, temperature, pressure and alarm trends. Test automatic start/stop and protective functions under an approved procedure. Refer to the manufacturer documentation for the exact figure for pressure, temperature, clearance and service limits.
Spare Parts: Carry filters, valve or seal kits, approved lubricant where applicable, belts or coupling parts, drain or control valves, pressure switches and control relays.
Use Cases: Starting air, service air, deck air, refrigeration and cargo-gas compression duties.
Burckhardt API-618 200/30
unverified
Model Family
API-618
Compressor Type
cargo_compressor
Pressure (bar)
30
Capacity (Nm³/h)
200
Stages
3
Common Failures & Inspection Points
- Valve or compression-element wear caused by contamination, inadequate lubrication or long service, resulting in reduced capacity and abnormal temperatures
- Seal or packing leakage caused by wear, thermal distortion or damaged sealing components, resulting in air or gas leakage and reduced performance
- Cooling-system fouling or loss caused by scale, blocked passages or pump faults, resulting in elevated discharge or bearing temperatures
- Lubrication or bearing failure where applicable caused by low oil supply, contamination or misalignment, resulting in vibration, temperature rise or trips
- Capacity-control, unloading or non-return valve malfunction caused by sticking, actuator or control faults, resulting in unstable operation, difficult starting or abnormal cycling
Service: Monitor suction and discharge conditions, temperatures, vibration and capacity-control behavior in accordance with the vessel procedures. Inspect coolers, valves, filters, drains, bearings and lubrication system where applicable. Check for air, gas, oil and cooling-water leakage and investigate recurring trips rather than repeatedly restarting the machine. Function-test unloading, capacity-control and protective devices using approved procedures. Keep system cleanliness and material compatibility under control. Refer to manufacturer and class documentation for exact clearances, alarm limits and overhaul criteria.
Spare Parts: Keep model-correct seals or packing, valve or compression-element service parts, bearings, filters, gaskets and capacity-control or unloader components recommended by the manufacturer. Service-critical materials must match the handled medium. Confirm all parts against the compressor serial number and application.
Use Cases: Cargo vapor handling on gas or specialized cargo vessels.
Burckhardt API-618 500/30
unverified
Model Family
API-618
Compressor Type
cargo_compressor
Pressure (bar)
30
Capacity (Nm³/h)
500
Stages
3
Common Failures & Inspection Points
- Valve or compression-element wear caused by contamination, inadequate lubrication or long service, resulting in reduced capacity and abnormal temperatures
- Seal or packing leakage caused by wear, thermal distortion or damaged sealing components, resulting in air or gas leakage and reduced performance
- Cooling-system fouling or loss caused by scale, blocked passages or pump faults, resulting in elevated discharge or bearing temperatures
- Lubrication or bearing failure where applicable caused by low oil supply, contamination or misalignment, resulting in vibration, temperature rise or trips
- Capacity-control, unloading or non-return valve malfunction caused by sticking, actuator or control faults, resulting in unstable operation, difficult starting or abnormal cycling
Service: Monitor suction and discharge conditions, temperatures, vibration and capacity-control behavior in accordance with the vessel procedures. Inspect coolers, valves, filters, drains, bearings and lubrication system where applicable. Check for air, gas, oil and cooling-water leakage and investigate recurring trips rather than repeatedly restarting the machine. Function-test unloading, capacity-control and protective devices using approved procedures. Keep system cleanliness and material compatibility under control. Refer to manufacturer and class documentation for exact clearances, alarm limits and overhaul criteria.
Spare Parts: Keep model-correct seals or packing, valve or compression-element service parts, bearings, filters, gaskets and capacity-control or unloader components recommended by the manufacturer. Service-critical materials must match the handled medium. Confirm all parts against the compressor serial number and application.
Use Cases: Cargo vapor handling on gas or specialized cargo vessels.
Burckhardt API-618 1000/30
unverified
Model Family
API-618
Compressor Type
cargo_compressor
Pressure (bar)
30
Capacity (Nm³/h)
1000
Stages
3
Common Failures & Inspection Points
- Restricted suction or dirty filters reduce delivered capacity and cause long running periods or low discharge
- Valve, piston, rotor or compression-element wear causes reduced capacity, abnormal temperature or oil carry-over
- Cooling restriction causes high discharge temperature and protective trips
- Lubrication or bearing deterioration causes abnormal noise, vibration or rising temperature
- Automatic control, unloader, pressure or capacity-regulation faults cause cycling, failure to start or shutdown
Service: Inspect intake or suction path, compression elements, lubrication, cooling, drains or separators, relief devices, non-return valves and controls. Review capacity, temperature, pressure and alarm trends. Test automatic start/stop and protective functions under an approved procedure. Refer to the manufacturer documentation for the exact figure for pressure, temperature, clearance and service limits.
Spare Parts: Carry filters, valve or seal kits, approved lubricant where applicable, belts or coupling parts, drain or control valves, pressure switches and control relays.
Use Cases: Starting air, service air, deck air, refrigeration and cargo-gas compression duties.
MAN Energy Solutions
2
MAN ME-GI Fuel Gas Supply System
unverified
· Natural gas / LNG
Compressor Type
reciprocating
Medium
LNG
Common Failures & Inspection Points
- Valve, seal or piping leakage can cause loss of containment, detected by pressure loss, gas detection or visible leakage
- Pump, compressor or drive deterioration can reduce transfer performance, seen as low capacity, vibration or high temperature
- Sensor or transmitter faults can corrupt cargo-control data and alarms
- Control or interlock faults can prevent starting or safe sequence completion
- Fouling, icing, deposits or contamination in cargo-service components can restrict flow and reduce efficiency
Service: Inspect containment, seals, valves, drives, instrumentation, shutdowns and cargo-control interfaces according to the cargo-system type. Trend vibration, pressure, temperature and alarm history where applicable. Exact operating limits and cargo compatibility requirements must follow approved cargo manuals and manufacturer documentation.
Spare Parts: Carry seals, gaskets, filters, sensors, actuator parts and manufacturer-recommended critical compressor/pump or control components compatible with the cargo service.
Use Cases: Used on oil, chemical and gas carriers for cargo transfer, conditioning, tank cleaning, pressure control and cargo-operation monitoring.
High-pressure gas supply for ME-GI engines
MAN LSGS Low-Speed Gas Supply
unverified
· Natural gas / LNG
Compressor Type
reciprocating
Medium
LNG
Common Failures & Inspection Points
- Valve, seal or piping leakage can cause loss of containment, detected by pressure loss, gas detection or visible leakage
- Pump, compressor or drive deterioration can reduce transfer performance, seen as low capacity, vibration or high temperature
- Sensor or transmitter faults can corrupt cargo-control data and alarms
- Control or interlock faults can prevent starting or safe sequence completion
- Fouling, icing, deposits or contamination in cargo-service components can restrict flow and reduce efficiency
Service: Inspect containment, seals, valves, drives, instrumentation, shutdowns and cargo-control interfaces according to the cargo-system type. Trend vibration, pressure, temperature and alarm history where applicable. Exact operating limits and cargo compatibility requirements must follow approved cargo manuals and manufacturer documentation.
Spare Parts: Carry seals, gaskets, filters, sensors, actuator parts and manufacturer-recommended critical compressor/pump or control components compatible with the cargo service.
Use Cases: Used on oil, chemical and gas carriers for cargo transfer, conditioning, tank cleaning, pressure control and cargo-operation monitoring.
Fuel gas compressor system
Atlas Copco Marine
1
HX 5000
5000 m3/h
· LNG / LPG / Gas Cargo
· oil‑lubricated reciprocating gas compressor
Type
reciprocating
Capacity (m³/h)
5000
Common Failures & Inspection Points
- Valve plate failure
- Piston ring wear
- Oil scraper ring leak
- Motor bearing failure
Service: Atlas Copco process gas division. Annual inspection.
Spare Parts: Atlas Copco: Spare parts per manufacturer. Lead time: 3-8 weeks. Keep seals and valve inserts on board.
Strengths
- Very high flow rate (≈5 000 m³/h) suitable for large LNG/LPG carriers
- Robust, proven design with long service history in the gas carrier market
- Modular construction allows relatively easy on‑site installation and replacement of wear parts
- Integrated motor drive provides compact footprint compared with twin‑screw alternatives
- Extensive aftermarket support from Atlas Copco’s Process Gas division
Weaknesses
- Reciprocating action generates higher vibration and noise than screw compressors
- Wear items (valve plates, piston rings, oil scraper rings) require regular monitoring and replacement
- Oil‑lubricated design introduces a potential source of gas contamination if seals fail
- Motor bearing failures have been reported, necessitating periodic bearing inspections
- Larger physical footprint than some modern oil‑free screw units
Typical Vessels:
LPG CarrierLNG CarrierChemical Tanker (gas cargoes)Petrochemical product carrier
Decision Guide: Choose if: you need a proven, high‑capacity compressor for large LPG/LNG carriers and have existing Atlas Copco support infrastructure. Avoid if: vessel space is limited, you prefer oil‑free technology, or the operating profile is low‑flow where a smaller screw unit would be more efficient.
Use Cases: The HX 5000 is typically installed on LNG/LPG tankers for shore‑to‑ship loading and unloading operations at high‑throughput terminals, as well as on gas carriers that require rapid cargo pressurisation during voyage transfers.
Wärtsilä
1
Wärtsilä Cargo Handling Recip Compressor LPG
unverified
· LPG
Compressor Type
reciprocating
Medium
LPG
Common Failures & Inspection Points
- Valve, seal or piping leakage can cause loss of containment, detected by pressure loss, gas detection or visible leakage
- Pump, compressor or drive deterioration can reduce transfer performance, seen as low capacity, vibration or high temperature
- Sensor or transmitter faults can corrupt cargo-control data and alarms
- Control or interlock faults can prevent starting or safe sequence completion
- Fouling, icing, deposits or contamination in cargo-service components can restrict flow and reduce efficiency
Service: Inspect containment, seals, valves, drives, instrumentation, shutdowns and cargo-control interfaces according to the cargo-system type. Trend vibration, pressure, temperature and alarm history where applicable. Exact operating limits and cargo compatibility requirements must follow approved cargo manuals and manufacturer documentation.
Spare Parts: Carry seals, gaskets, filters, sensors, actuator parts and manufacturer-recommended critical compressor/pump or control components compatible with the cargo service.
Use Cases: Used on oil, chemical and gas carriers for cargo transfer, conditioning, tank cleaning, pressure control and cargo-operation monitoring.
Reciprocating compressor for LPG cargo handling