Since weight and space is critical in marine and aircraft systems, Water mist, a fresh approach in fixed fire suppression was made to fulfill their specialized needs. Very much the same in lots of ways to a building sprinkler system, Water mist on the other hand, can be used for other specific applications where a usual sprinkler system is not suited.
To obtain the most efficient droplet size and that is in mist form, water is pressured through minuscule nozzles in a water mist system. In mist form, water expands by a factor of 1700 when evaporating therefore oxygen is reduced thus eliminating a vital part of natural burning. whenever water mist makes contact with the fire - heat and oxygen, Two of the necessary components of fire are considerably cut down or eliminated. When in water mist form, this water is expanded by a factor of 1700 meaning significantly less water is needed. In mist form, water instantly evaporates when heated hence minimizing damage to water-sensitive equipments. Regardless of its positive aspects, misting systems may not be up to the task for specific settings.
Misting systems is extremely effective if fire risk is localized in a particular area this is why it is appropriate for kitchen appliances, generators, commercial deep fat fryers, archive rooms, computer rooms, fuel storage tanks etc. A water mist system could also be applied to office conditions due to the big water conservation and decrease in water damage to office equipments, however, it has to be integrated alongside with a common sprinkler system.
Low-Pressure Systems, Mid-Pressure Systems, and High-Pressure Systems are the 3 different kinds of water mist systems, which as the name signifies, are categorized in accordance with the pressure it can deliver. Cost effective and simple to set up, these are several of the stronger points of a low pressure misting systems. In a low pressure misting system, bigger water droplets are produced which isn't very beneficial in many appilcations.Mid-pressure misting systems are just low-pressure systems with a comparatively low-pressure pump (appx. 160 psi). With pumps that could generate over 1000 psi of water pressure, a high pressure water mist system can support around One hundred nozzles and 2 hundred feet of misting line.