Gaseous fire suppression is a term to describe the use of inert gases and chemical agents to extinguish a fire. Alsocalled Clean Agent Fire Suppression. These Agents are governed by the National Fire Protection Association (NFPA) Standard for Clean Agent Fire Extinguishing Systems – NFPA 2001 in the USA, with di erent standards and regulations in other parts of the world. The system typically consists of the agent,
Is an active fire protection method, consisting of a water supply system, providing adequate pressure and flowrate to a water distribution piping system, onto which fire sprinklers are connected.
Pressurized water resides in the pipe until a fire is detected by a heat-sensitive automatic sprinkler, which allows water to flow from the targeted sprinkler.
Preaction systems are dry pipe sprinkler systems with pressurized air in their pipes and closed sprinkler heads.
The deluge valve in a deluge system is tripped by the actuation of a detection system, which introduces water into the piping system.
Water is converted into steam, which cools, wets and moves oxygen away from flames. The mist water droplets deplete the oxygen on the flame front, which in turn extinguishes the fire.
Dry pipe sprinklers are pressurized with air, which is released upon actuation of the sprinkler. There is a delay in the discharge of water while the pressurized air escapes from the system, upon which water flows into the piping system