Fire control plan symbols
The Fire Control Plan hangs at the companionways, and a copy sits in a marked container on the accommodation bulkhead, usually right at the entrance: that is the red tube a shore fire brigade reaches for when boarding. These 52 symbols are the legend of that plan: they say where the fire dampers, pumps, section valves and the spaces protected by fixed installations are. It is technical graphics drawn onto the ship's plan, without the normative background colours and board shapes of wall signs.
Plans 3
Ventilation and closures 18
Remote control for closing device for ventilation inlet and outlet (accommodation and service space) SIS019 SVG 
Pumps 8
Remote control for emergency fire pump or fire pump supplied by the emergency source of power SIS024 SVG 
Valves and connections 10
Extinguishing installations and protected areas 8
Space or group of spaces protected by a sprinkler or high-pressure water fire-extinguishing system SIS047 SVG Emergency power and control 5
Set per table 3 of the annex to IMO resolution A.1116(30); graphic patterns per ISO 17631 (adapted from resolution A.952(23)). Files are public domain. This is not a legal text: in any doubt the current wording of the resolution decides.