Description
A fire hose is a high-pressure hose that carries water or other fire retardant (such as foam) to a fire to extinguish it. Outdoors, it attaches either to a fire engine or a fire hydrant. Indoors, it can permanently attach to a building’s standpipe or plumbing system.
The usual working pressure of a firehose can vary between 8 and 20 bar (800 and 2,000 kPa; 116 and 290 psi) while per the NFPA 1961 Fire Hose Standard, its bursting pressure is in excess of 110 bar. (11,000kPa; 1600psi) Hose is one of the basic, essential pieces of fire-fighting equipment. It is necessary to convey water either from an open water supply, or pressurized water supply. Hoses are divided into two categories, based on their use: suction hose (which is laid down on the suction side of pump (inlet)), and delivery hose (which is laid down from the delivery side of the pump (outlet)).
Lined hose are divided into 3 types:
Type 1: Lined hose without external jacket treatment. Normally use in fire hose reel box in buildings.
Type 2: Coated lined hose: This has a thin, epoxy outer coating that reduces liquid absorption into the jacket and may slightly improve abrasion resistance. It has lighter weight than Type-3 and normally use with firefighters. It can be repair for puncture.
Type 3: Covered lined hose: has a thicker elastic cover that prevents liquid absorption but also adds substantial improvements to abrasion and heat resistance. It is best choice for oil & gas industries.
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