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.

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.

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

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:

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

Carbon dioxide

• Unmanned generator and transformer stations
• Oil baths
• Turbines
• Machines
• Kitchen equipment

The chemical extinguishing agent, HFC227ea, is stored in liquid form in the storage containers and pressurized with nitrogen. Nitrogen is used to transport the gas to individual nozzles, where it evaporates rapidly, creating a homogeneous atmosphere in the room. A single HFC227ea molecule decomposes into 10 atoms when exposed to heat of the flame.

The extreme speed with which HFC227ea extinguishes a fire is the result of sudden expansion of volume, reduction of local oxygen concentration and high level of heat absorption involved in this decomposition process.

There is no danger of ozone layer depletion (ODP=0) with this environmental friendly agent. HFC227ea system is totally free from the risk of personal injury and is faster in response when compared to system using natural gases.

Applications:

• Computer rooms
• Telecommunication system
• Electrical switching rooms
• Electrical distribution rooms
• Under floor cavities for cables
• More…

The Sinorix™ 1230 combines the latest generation of chemical extinguishing agents with the high pressure extinguishing system design (42 bars). The nitrogen is used to transport the gas to the individual nozzles, where it evaporates rapidly, creating a homogeneous atmosphere in the room. A single molecule decomposes into 18 atoms when exposed to the heat of a flame. This results in a slightly reduced concentration of the extinguishing gas needed in comparison to HFC227ea.

With zero ozone depletion potential (ODP=0) and no risk of personal injury this system is rapid, highly effective and reliable.

Applications:

• Computer rooms
• Telecommunication system
• Electrical switching rooms
• Electrical distribution rooms
• Under floor cavities for cables
• More…