Foams are used to extinguish the fire
There are two types:
1- Chemical foaming
2- Mechanical (pneumatic) foam
Among the good properties of foams:
1- Freedom of movement and spread.
2- Forming a strong insulating layer.
3- Resists breaking down by heat.
4- Resistant to mixing with liquid materials.
It is the vital part of the automatic sprinkler system that feeds fire fighting sprinklers, and these pumps work by feeding them with electricity, diesel or steam. The pump suction line is usually connected to a fixed source of water (water tank, lake, ...). The function of the pump is to deliver a high-pressure stream of water to the stalagmites connected to the water sprinklers and fire hoses. Fire pumps are subject to NFPA code requirements
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They are devices that operate with magnetic pulse and vibration technology and are used by security personnel to detect any foreign metal, and these devices are always used in the security of airports, embassies and all important buildings because of their importance in securing these places from any harmful foreign metals that may threaten the security of these institutions.
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