Water Mist Fire Protection System
What is Water Mist?
A water mist system is a fire protection system which uses very fine water sprays (i.e. water mist). The small water droplets allow the water mist to control, suppress or extinguish fires by:
Types of Water Mist System
- Wet Pipe Suppression System
- Deluge Suppression System
- Dry Pipe Suppression System
- Pre-action Suppression System
- Cooling both the flame and surrounding gases by evaporation
- Displacing oxygen by evaporation
- Attenuating radiant heat by the small droplets themselves
water mist systems suppress or extinguish fires using the following mechanisms
- Reduction of radiant heat due to surface cooling of the water mist.
- Reduction of oxygen concentration adjacent to the fuel surface by oxygen depletion and air dilution.
- Dilution of fuel vapor by the fire.
- Direct impingement of water droplets on the combustible material.
- Pre-wetting of adjacent Class A combustibles and cooling gases or other fuels in the area.
Main Component
Sprinkler-Heads
Spray Head
Tubing
Valves
Release- & control-valves
Space Valve
Pump Unit
Water Supply
Accumulator-Units
System & Design Standared
- NFPA-750
- CEN TS 14972 (VdS, CNPP,…)
- IS 15519
- FM Approval Standard 5560
- IMO
