Inert Gas Fire Suppression Systems

IG55 (trade name Argonite®) is composed of an equal blend of two naturally occurring gases present in the atmosphere – 50% Nitrogen and 50% Argon. It is particularly suited for protection against electrical fires as it is non-conductive; it is also colourless, odourless & flavourless. In addition, it has a zero ozone depletion profile and no greenhouse effect .When discharged reduces oxygen levels from the ambient atmospheric level of 21% to approximately 12% which efficiently extinguishes any fire without posing any threat to life. IG-55 systems are designed for a cylinder filling pressure of 200/300 bar using cylinder sizes of 80lt and 140ltr capacity thereby optimising space & cost

IG-541(trade name Inergen®) is present in the atmosphere. It is a high-pressure agent which is stored in cylinder banks to suit risk size. It is composed of a blend of three naturally occurring gases, 52% Nitrogen and 40% Argon and 8% Carbon Dioxide (Co2). The gas has zero Ozone depletion potential and no greenhouse effects. IG-541 systems are designed for a cylinder filling pressure of 200/300 bar using cylinder sizes of 80lt and 140ltr capacity thereby optimising space & cost

WMFE will advise, design, supply & install “double knock” fire detection systems extraction & over pressure venting systems.

To compliment the gas systems WMFE will advise, design, supply & install the following:

Fire Detection System

A “double knock" (or coincidence) fire detection system will be provided to respond to the early stages of a fire condition and release the gas extinguishing system

Over Pressure Venting

The discharge of a fixed extinguishing system that uses pressurised gas as the extinguishing agent creates on discharge a considerable increase in the volume of gas in the area being protected thereby causes an increase in pressure in the room.

This effect may cause structural damage to the area being protected therefore there is a need to limit this increase in pressure by the installation of pressure relief dampers

Post Discharge Extraction

Once the gas system has discharged into the area a manually operated and suitably sized extraction system must be provided to enable suitably qualified persons to extract the discharged gas into the atmosphere.