Tel: +44 (0) 1543 264 034 Fax: +44 (0) 1543 414 367

• Utilises a natural gas present in the atmosphere
• No residue to clean up after discharge.
• Suitable for occupied areas
• Electrically non conductive
• Colourless.
• Odourless.
• Non-corrosive.

Systems utilising inert gasses or a mix of inert gas is colourless, odourless and non-corrosive and can be used in areas where people are normally present. The gas is stored in high-pressure cylinders. In the event of a fire, the gas is conveyed via a network of pipes, to discharge nozzles situated in the risk area. It is electrically non conductive, and is therefore an ideal extinguishing agent for normally manned areas, as well as   for sub stations and electrical switch rooms. It is also ideal for inflammable goods stores and other risks where flammable materials are stored or processed. Most carbonaceous fires will extinguish if the available oxygen is lowered from normal 21% to 15%. Inert systems extinguish fires by lowering the amount of oxygen below the level of 15%.
 
Systems are operated either electrically or manually dependant on system design. Within a computer facility for example, it would be normal practice for AFS to design a system utilising early warning smoke detection, taking into consideration the air conditioning air flow direction and the general building design. The smoke detectors would be connected to a purpose made Fire Extinguishing Control Panel, complete with internal power supplies and standby batteries that would power the system in the event of a power cut. The control panel as other facilities what include alarm sounder outputs and remote signalling for connection to a central system, or another building? Systems can also be designed for operating from other forms of fire detection including Air Aspirating Systems, Heat Detectors and Flame Detectors.

In the event that the fire detection system operated, a time delay can be provided within the control panel prior to actual discharge. The fire suppression system will be equipped with an electrical device such as a solenoid or protractor which will operate the pilot cylinder which will then release gas under pressure to the cylinder valves, to open them and thereby commence the discharge into the area being protected.