Gas extinguishing systems are used when water, foam or powder extinguishing systems are not effective

A gas extinguishing system is a fire extinguishing system that extinguishes fire with the help of a gaseous extinguishing agent either through oxygen displacement (reduction of oxygen content) or physical effects (heat extraction). In contrast to a sprinkler system, a gas extinguishing system is designed to extinguish and not only suppress fire.

A range of different extinguishing gases can be used for the extinguishing system. The specific properties of the different extinguishing gases also define their area of use.

Carbon dioxide (CO2)
Carbon dioxide is primarily suitable for fighting fire classes B and C.

Inert gas (IG)

That is includes Nitrogen and Argon with different percentages.

Inert gas (HFC)

Hydro fluorocarbon (HFC) clean agent is a chemical compound that suppresses Classes A, B and C fires without water or harmful chemical residue

Extinguishing foam is a mixture of water, foam agent and air

Extinguishing foam is essentially a mixture of water, foaming agent and air. The mixture ratio of these three substances is adapted depending on the application.

The extinguishing effect comes from the heat-resistant foam forming a solid blanket over the flammable materials. This creates a cooling, separating and suppressive effect depending on the type of foam. The foam isolates the flames from the oxygen supply and suppresses the development of toxic flue gases. The chemical reaction for combustion is therefore halted and the flame is extinguished.

The application of different types of system is existed based on the areas of use including:

• low expansion type, medium expansion and high expansion system

Also based on the new technology and manufacturers design , the different types of system can be used including BLADDER TANK or FOAM DOSING SYSTEM

Dry powder is delivered and distributed to the extinguishing area by nozzles through a piping network

Powder extinguishing systems are permanently installed in places where, in the event of liquid, gas and certain chemical fires, other extinguishing agents would not guarantee a safe extinguishing procedure.

The selection of a suitable equipment depends on a wide range of different factors

• On-Off deluge valve
• Control type deluge valve
• Dry or Wet type Hydrant
• Water or foam monitors
• Hose box and foam hose reals
• Fire manual extinguishers