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Sometimes known as ‘monitors’, water cannons are fixed position fire extinguishing nozzles that can be used to directly target a fire at your facility.
Whilst they use the same suppression agents, there is very little commonality between Sprinkler/Deluge systems and monitors. Sprinkler Systems and Deluge Systems operate by discharging through nozzles located directly above the risk area, fed by a network of suppression pipework. Monitors, however, discharge large volumes of suppression agent from a single fixed location, and at high pressure to give it an excellent range of coverage.
Monitors are often combined with a 3rd party detection system for automatic activation, although they can be an entirely manual system as well. The most common detection system is a Thermal Fire Detection system, which can also provide details on the location of the threat, and automatically target the threat. When combined with this system, water cannons provide a uniquely effective system to swiftly and accurately target fires, and even douse hotpots before they develop into a blaze.
As mentioned above, water cannons are often combined with a Thermal Fire Detection system. This operates by scanning the area for infra-red radiation, which it can then convert into a temperature reading. When a set temperature threshold is reached, the fire alarm is activated and signals relayed to the cannon.
The signals received by the cannon include details of the zone in which the fire has been detected. This provides the cannon the information on the area to concentrate the suppression, and the water cannon, mounted on a motorised chassis with a self-aligning system, turns and directs the water jet directly at the risk area identified by the detection system.
The direct targeting of a risk area has the effect of concentrating the suppression on a relatively small area. The monitors Blazequel provide can deliver up to 2,500ltr/min of suppression agent, rapidly containing and suppressing the fire.
No other building protection automatic fire extinguishing system can operate with such speed and precision, dealing directly with the point of risk rather than blanket protecting a whole area. This targeted approach ensures that the risk is dealt with swiftly and efficiently and minimises clean up costs.
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