Water extinguishing system is the most common fire extinguisher based on the cheapest and most accessible extinguishing agent, water.
1- Portable extinguisher (hand held, wheeled)
2- Fixed extinguisher:
- Fire sprinkler system (wet, dry): Activation of the system depends on the activation of the sprinklers with raising the temperature.
- Deluge system: Piping are open and water is behind the deluge valve. Fire alarm system will issue the command of extinguishing to the deluge valve.
- Pre-action system (Non-interlock, single interlock, double interlock): Used where accidental activation of system is not acceptable.
- Electronic sprinkler system: Sprinkler types are electronic.
- Foam water sprinkler system: Water and low expansion foam concentrate will be mixed.
- Water spray system: Similar to deluge system but with different piping and nozzles.
- Water mist system: Creates heat absorbent vapour to control the fire.
Fire sprinkler system components:
- Water supply system: to provide water with required pressure and flow rate to the piping system
- Distribution piping
- Fire sprinkler
- Alarm check valve
- Dry pipe valve
- Air pressure supply components
- Pre-action valve
Note1: Installation of water based systems must be according to standards and local regulations.
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