Friendly Gas Based fire suppression System

Carbon dioxide

Unmanned generator and transformer stations
Oil baths
Turbines
Machines
Kitchen equipment

Nitrogen

Telecommunications systems
Computer rooms
Storerooms
Cable ducts
Generator and electrical switching rooms
Archives
Strong rooms
Museums
Cotton storage
Military depot
Storage of chemical and petrochemical products
Engines
Turbines
Pumping stations

Argon

All the above
Metal fire

Nitrogen and argon can be used generally used without risk of personal injury. Carbon dioxide is toxic in the concentration required for effective fire extinguishing and may only be used in unmanned locations.

Applications:

Along with being environmentally friendly this system is comparatively inexpensive as these gases are widely available.

The fire is extinguished by oxygen starvation. Normal air is displaced by the extinguishing agent, reducing the oxygen content of the atmosphere in the immediate proximity of fire to between 10% and 13% by volume. This effectively smothers the fire and prevents re-ignition.

Natural gases like nitrogen, argon or carbon dioxide are used in the Cerexen systems as the extinguishing agents. These gases are obtained by air separation.

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