Fixed Fire-Extinguishing System Sign

Fixed Fire-Extinguishing System Sign – FS0015

This IMO fire control sign identifies the location of a fixed fire-extinguishing system, shown in the pictogram as a single pressurised tank on a raised base with flames rising beside it. The fixed fire-extinguishing system sign marks the control valve or discharge point of a compact, single-tank installation, distinct from the multi-cylinder pictogram used for CO2 battery release stations, and applies wherever a foam, powder, or water-based fixed system protects a compartment from a single supply tank.

Where this fixed fire-extinguishing system sign is used

Single-tank fixed systems are commonly installed in paint lockers, small auxiliary machinery spaces, generator enclosures, and other compact compartments where a full CO2 battery room would be unnecessary but an automatic or manually-triggered suppression tank is still required. This fixed fire-extinguishing system sign is fixed at the tank itself or at its control valve, so crew and surveyors can immediately identify the discharge point without confusing it with a portable extinguisher station nearby.

Because the tank must stay connected to its discharge piping and remain accessible for pressure checks, its mounting position needs to stay clear of stored materials, tools, or equipment placed nearby during routine work in the space. The fixed fire-extinguishing system sign helps confirm the installation has not been boxed in or obstructed since its last inspection, which is a common finding in cramped auxiliary spaces.

During weekly and monthly fire equipment inspections, crew confirm that the tank’s pressure gauge reads within the correct operating range, that the discharge nozzle and piping show no corrosion or damage, and that this sign remains legible at the mounting point. Any tank found under-pressure, relocated, or with an obstructed discharge path should be reported and corrected immediately, since a single-tank system typically protects a space with no secondary fixed backup.

This sign is checked during SOLAS fire safety surveys, where the surveyor confirms that every compartment requiring fixed fire protection has the correct type of installation for its size and cargo or machinery risk, correctly signed, and functioning within its service interval. A vessel with accurately signed single-tank installations alongside its larger CO2 battery systems shows a fire safety plan matched to each space rather than a one-size-fits-all approach.

New crew are shown this sign during machinery space and auxiliary compartment inductions, since recognising a single-tank fixed installation and knowing how to trigger it manually if the automatic release fails is a skill distinct from operating a portable extinguisher or a full CO2 battery system. This sign is commonly ordered alongside other fixed system signage, such as the fixed fire-extinguishing installation sign used for multi-cylinder CO2 battery rooms on the same vessel.

Because the two pictograms look similar at a glance, ordering the correct sign for each installation type matters: the single-tank symbol on this sign should only be used where a single-tank system is actually fitted, so crew are never misdirected toward a multi-cylinder battery room that does not exist in that space.

A tank protected by this fixed fire-extinguishing system sign should also be checked for external corrosion and secure mounting brackets during routine rounds, since a tank that has shifted or begun to rust at its base can delay a manual release under pressure. Recording the tank’s last service date alongside the fire equipment log helps engineers track when the next scheduled recharge or hydrostatic test falls due, keeping the whole single-tank installation, not just its signage, in a verifiably ready state.

Technical specifications:
SKU: FS0015
Compliant: IMO Resolution A.1116(30)

• Fire-retardant marine-grade material
• Available in non-glow vinyl, general purpose glow, or DNV Wheelmark certified Class C / Class D photoluminescent film
• Waterproof and saltwater resistant
• Glossy wipe-clean finish
• Peel-and-stick installation, no tools or drilling

Supplied ready to apply directly to a clean, dry surface at the tank or control valve’s mounting point. Available in the standard sizes shown above to suit different compartment layouts.

This sign is produced to IMO fire control symbol specifications for consistent recognition across international fleets. Need a different size? Contact us for a quote.

This fixed fire-extinguishing system sign sign clearly marks the location of fixed extinguishing equipment for fast crew response during a fire emergency. Browse our full range of fire fighting signs for more IMO-compliant maritime safety signage.