Sprinkler Stop Valve Sign – FS0059

Sprinkler Stop Valve Sign – FS0059

This IMO fire control sign identifies a sprinkler stop valve, the isolating valve used to shut off water flow to a specific sprinkler zone or section, using the standard firefighter’s helmet pictogram with plain wording and the IMO flame symbol. The sprinkler stop valve sign lets crew locate the correct isolating point quickly, whether responding to a fire, carrying out maintenance, or investigating a fault in the system.

Where this sprinkler stop valve sign is used

This sign is mounted directly above or beside a sprinkler stop valve, typically found along the pipework serving accommodation spaces, machinery areas, and other zones protected by an automatic sprinkler system. A sprinkler stop valve is distinct from the main sprinkler control valve, which governs the whole system or a major section of it; the stop valve isolates a smaller zone, so correctly identifying which valve is which matters when crew need to shut off flow to one area without affecting protection elsewhere.

On vessels with sprinkler zones distributed across multiple decks, this sprinkler stop valve sign is applied consistently at every valve location so that crew can match physical valves to the zones shown on the vessel’s fire control plan without guesswork. This consistency also supports visiting surveyors confirming that isolating valves are present, correctly labelled, and match the system diagram.

During fire drills and system maintenance, this sign is used as a reference point for crew learning which valve isolates which zone, since closing the wrong stop valve during an emergency could leave the actual fire area unprotected while shutting down sprinklers somewhere unaffected. Any valve found with a missing, damaged, or illegible sign should be corrected immediately, since confusion at the valve during an active fire is a genuine safety risk.

This sign is checked during SOLAS fire safety surveys, where the surveyor confirms that sprinkler stop valves shown on the vessel’s fire control plan are present, correctly positioned, and clearly signed at every location. Accurate valve signage is a standard item reviewed during these inspections, given how central correct valve identification is to controlling a sprinkler system during a fire.

New crew are introduced to sprinkler stop valve sign locations during safety inductions and system familiarisation, since knowing which valve isolates which zone is basic fire safety knowledge expected of crew working in spaces protected by sprinklers. This sign is commonly ordered alongside the sprinkler control valve sign and other primary firefighting signage such as the fire extinguisher sign, so a vessel’s sprinkler system components are all clearly and consistently marked.

Sprinkler stop valves and their signage are reviewed during routine equipment audits and after any refit or reconfiguration of the sprinkler zones, and this sign should be checked at the same time to confirm it remains correctly positioned and legible. A valve relocated during works and left without an updated sign is a common finding during external fire safety audits and should be corrected as soon as it is identified.

Because closing the wrong valve during an emergency can waste critical time or leave the wrong area protected, keeping this sign accurate and legible is as important as keeping the valve itself in working order.

Technical specifications:
SKU: FS0059
IMPA: 33.6152
ISSA: 47.561.52
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 above or beside the sprinkler stop valve. Available in the standard size shown above.

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