Gas Extinguishing

FM200^® Gas Extinguishing

FM-200^® Fire Suppression agent was the first environmentally acceptable replacement for Halon 1301. FM-200^® has zero ozone depleting potential, a low global warming potential and a short atmospheric lifetime. It is particularly useful where an environmentally acceptable agent is essential, where clean up of other media presents a problem, where weight versus suppression potential is a factor, where an electrically non-conductive medium is needed, and people compatibility an overriding factor.

FM-200^® is a colourless, liquefied compressed gas. It is stored as a liquid and dispensed into the hazard as a colourless, eclectically non-conductive vapour that is clear and does not obscure vision. It leaves no residue and has acceptable toxicity for use in occupied spaces at design concentration. FM-200^® does not displace oxygen and therefore is safer for use in occupied spaces without fear of oxygen deprivation.

FM-200^® is chosen to protect occupied areas such as computer rooms and now the fast expanding telecommunications market. Its low extinguishing concentration of seven percent by volume for Class A risks, its high level personnel safety and absence of toxicity makes it a very attractive option. Very little cylinder storage space is required which can be an important consideration in city centre sites where floor space is at its most expensive.

Perhaps most in FM-200^® favour though is the fact that it out performs the majority of other gaseous systems in terms of speed of reaction to fire. FM-200^® is effective within 10 seconds of initial discharge. FM-200^® has some significant advantages over other alternative agents. The rapid discharge time means that there is rapid knockdown of flame and the fire is rapidly extinguished. The amount of damage, toxicity effects and decomposition products of combustion are minimised. The safety percentage factor between the design concentration and toxicity levels is the largest margin of any fixed gaseous extinguishing systems and conformity exceeds that of Halon 1301.

Benefits & Features

• Fast & effective
• No significant reduction in oxygen levels
• Clean gaseous agent leaving no residue
• Zero ozone depleting potential

• Low global warming potential
• Short atmospheric life span
• Electronically non-conductive
• Safe for use in fully occupied areas
• Minimal storage requirement
• Versatile range of containers, nozzle and ancillaries
• Extensively tested, recognised and approved worldwide
• Effective on site installation

Applications

• Computer Areas
• Gas Turbines
• Oil Industry Installations
• Telecommunications
• Power Generation
• Shipping
• Museums and Archives

Carbon Dioxide Gas Extinguishing

Carbon Dioxide as an extinguishing agent is swift and thorough. Within seconds, it smothers a fire and holds damage to a minimum. Stored under pressure as a liquid, carbon dioxide quickly expands to vapour and a state of fine particles of dry ice, much like snow. This "snow" absorbs heat rapidly changes to a vapour under normal temperature conditions, and even faster in the presence of fire. The carbon dioxide vapour chokes of combustion, and the snow effect reduces the ambient temperature to help prevent re-ignition. Moreover, carbon dioxide is a three dimensional agent, enabling it to penetrate the entire hazard area, including electrical cabinets. Low-pressure and high-pressure carbon dioxide systems have equal extinguishing capabilities when each is designed to handle a specific hazard. Carbon dioxide is normally harmless to equipment, materials and property. It leaves no residue to be cleaned up, mopped up or scraped off. Production downtime is held to a minimum.

Carbon dioxide is a colourless, odourless, electrically non-conductive agent for the protection of vital services. In many instances, water is not a suitable extinguishing medium, for example, where electrical equipment is concerned or clean up time is vital, gaseous extinguishing agent is the only option.

CO² Systems are installed in unoccupied applications, as the agent is hazardous to humans due to the concentrations required to extinguish fires.

CO² is discharged into an enclosure or directly onto the surface requiring protection, and reduces the oxygen level to below that which can support combustion.

Creates a cooling effect on the fire and surrounding areas.

CO² is stored as a liquid in a cylinder or bulk tank.

Carbon Dioxide systems are designed in accordance with BS5304 part 4 and National Fire Protection Association.

The use of carbon dioxide has for many years been accepted as a clean and efficient agent. Carbon Dioxide has been proven to be non-damaging to electronic equipment, paintings, archives, magnetic media, etc. Being a gaseous agent carbon dioxide penetrates all affected areas.

Benefits & Features

• Clean and effective
• Non-damaging
• No Clean up
• Cost effective
• Electrically non-conductive
• Total flooding, local application and in cabinet protection available
• Versatile range of cylinders, nozzles and ancillaries
• Extensively tested, recognised and approved worldwide

Applications

• Transformer Rooms
• Switch Rooms
• Cable Vaults
• Archives
• Generators
• Industrial Process
• Flammable store

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