OceanSphereFree accountLog inDEENPL
OceanSphereENGINES
Request a part
Library› Cargo› PV Valves & Vent Systems› High Velocity Vent Valve› Pres-Vac Engineering Type EFA-E
Pres-Vac Engineering

Type EFA-E

High Velocity Vent Valve · PV Valves & Vent Systems

Technical data from manufacturer or class sources · not yet verified by a person

A static flame arrester works by absorbing and dissipating heat through a finely engineered mesh or perforated matrix, effectively extinguishing the flame front before it can propagate. The Pres-Vac Engineering Type EFA-E end-of-line deflagration endurance burn-proof flame arrester is designed to meet strict maritime safety standards for seagoing and inland tanker vessels. This device ensures that in case of a fire on board, flames cannot pass through vent or gas piping systems, thereby safeguarding the crew, vessel, and cargo. Certified to withstand flame transmission during endurance burning, it complies with all current regulations, including ATEX directive and EN 16852:2016. The EFA-E is equipped with a weather hood that opens in case of fire, protecting against rain and splashing sea water. With efficient drainage features and low maintenance costs, this robust flame arrester ensures stable function during voyages, regardless of thermal variations or sloshing conditions.

Specifications

Technical data.reference — unverified

TypeEndurance burn deflagration arrester
MaterialAISI 316 stainless steel
ApprovalATEX, EN ISO 16852, IMO/MSC/Circ. 677, IMO 1324/1325
Cargo RatingIIA, IIB3, IIB (hydrocarbons, alcohols)
SizesDN 50-300
Explosion group MESG≥ 0.50 mm
Inspection

Inspector Detail

Common issues

  • Flame element (crimped ribbon pack) fouling or blockage from cargo vapor polymerization or wax deposits
  • Corrosion of housing or element if an incorrect material grade is fitted for the cargo service
  • Ice formation restricting flow area in cold climates
  • Gasket and seal degradation from repeated pressure cycling
  • Integral P/V valve pallets sticking, causing over- or under-pressure in the tank
  • Flame element left loose or incorrectly seated after maintenance, defeating the flame-arresting function

Inspection checklist

  • Visual inspection of the flame element for blockage, corrosion, or damage per manufacturer/class interval
  • Check housing for corrosion and mechanical damage
  • Confirm flame element is correctly seated and secured after any removal
  • Check integral P/V valve pallets for free movement and correct set pressure
  • Inspect gaskets and fasteners for corrosion or leakage
  • Verify no unauthorized modification to flame gap or element type
  • Check for ice or frost blockage in cold conditions

Service intervals

Flame element inspection/cleaningper manufacturer's manual and IMO MSC/Circ.677, typically 12-monthly or at each dry-docking
P/V valve set-pressure checkannually
Full overhaul or element replacementon condition, or per the class-approved interval in the vessel's PMS

Critical spares

  • Flame element, crimped-ribbon type, correct DN size for this unit
  • Gasket set for housing joints
  • Pallet seat seals for the integral P/V valve

Safety

  • This unit is rated as a deflagration arrester only - it must not be relied on where a detonation risk exists unless separately rated for that duty
  • A blocked or fouled arrester can cause tank overpressure or vacuum collapse
  • Hot work near the arrester requires a gas-free certificate
  • Reassembly with the wrong or missing flame element defeats the flame-arresting function entirely

Class survey

Deflagration arresters on cargo tank venting are a survey item under tanker venting arrangements (IMO MSC/Circ.677 and applicable IBC/IGC provisions). Inspection and cleaning records for the flame element are typically required at Intermediate/Special survey, and the DN and approval marking on the nameplate must match the vent system's design duty.

Need this part?

Request a quote for this model.

Free of charge — we forward your request to qualified suppliers for Pres-Vac Engineering equipment from our network of over 114,000 maritime companies.

Makers and authorised dealers rarely quote marine equipment without the vessel. With these details we usually come back with prices; without them we have to ask first, which costs a few days. If you cannot share the vessel, a photo of the equipment’s rating plate does the same job — send it as a reply to our confirmation e-mail.

Your contact details are not published. No account required.
Related models

Also in High Velocity Vent Valve.

Other models of the same equipment type, Pres-Vac Engineering first.

Pres-Vac Engineering
High Pressure Ejectors
Pres-Vac Engineering
Low Pressure Ejectors
Pres-Vac Engineering
PV-ECO Series
Pres-Vac Engineering
PV-VOC Series
Pres-Vac Engineering
Type 2388 HS-ISO
Pres-Vac Engineering
Type 2389 HS-ISO-VAC
Pres-Vac Engineering
Type DH
Pres-Vac Engineering
Type DHM
Pres-Vac Engineering
Type EPV
Pres-Vac Engineering
Type HS 2293-6
By manufacturer PROTEGOPres-Vac EngineeringFort ValeTANKTECHEmerson MarineParker Hannifin MarinePres-VacBay Valves ApSHanla IMSVentiq ASAll manufacturersSpare parts by equipmentNew here? Create a free account Can't read the plate? Try the nameplate scanner More like Type EFA-E
Would you like to know more?

One person answers within 24 hours on working days.

Tell us what you need for this Pres-Vac Engineering Type EFA-E — a part, a service call, a second opinion. Are you Pres-Vac Engineering? Claim this brand page.

Request a part for this modelRequest service

Service engineer? Write the day report for this Type EFA-E in OceanSphere Work — photos, hours and parts, as a PDF for the owner. Try it free for 14 days →

Frequently asked

Three things people ask first.

Is this model's data free?

Yes. Specifications, documents and service notes for this model are readable without an account. An account adds saved searches and requests, nothing is taken away.

Can you find a part for this exact model?

Yes. Tell us the manufacturer, the model and what you need — our desk asks the right suppliers from a network of over 114,000 companies and comes back with a quote or a sourcing plan.

The specifications look wrong — what now?

Send us the nameplate or the correct value. We check it against the manufacturer datasheet or class-society record and update the page.