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Difference between revisions of "Suction Hoses"
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[[Category:Piping]]{{Knoppen}} | [[Category:Piping]]{{Knoppen}} | ||
[[File:Suction Hoses.jpg|thumb|right|Suction Hoses]] | [[File:Suction Hoses.jpg|thumb|right|Suction Hoses]] | ||
[[File:Suction Hoses1.jpg|thumb|right|Suction Hoses]] | [[File:Suction Hoses1.jpg|thumb|right|Suction Hoses]] | ||
'''Suction Hose''' is a specific type of fire hose used in drafting operations,when a fire engine uses a vacuum to draw water from a portable water tank, pool, or other static water source. It is built to withstand vacuum, rather than pressure, abrasion, and heat. In the United States, it is standard equipment according to the National Fire Protection Association standards for fire engines. It is used in both structural and wildland firefighting throughout the world, and is made in various diameters and connection types. | '''Suction Hose''' is a specific type of fire hose used in drafting operations,when a fire engine uses a vacuum to draw water from a portable water tank, pool, or other static water source. It is built to withstand vacuum, rather than pressure, abrasion, and heat. In the United States, it is standard equipment according to the National Fire Protection Association standards for fire engines. It is used in both structural and wildland firefighting throughout the world, and is made in various diameters and connection types. | ||
==Usage== | ==Usage== | ||
Suction hose, is a specific type of rigid fire hose used in drafting operations. When using this technique, the fire engine draws water for fire fighting from an unpressurized supply, such as a portable water tank, pool, or other static water source, instead of drawing water from a pressurized water supply, such as a fire hydrant. Under complete vacuum conditions, a pump can lift water 33.9 feet (10.3 m), but no pump on a fire apparatus is capable of producing a perfect vacuum. | Suction hose, is a specific type of rigid fire hose used in drafting operations. When using this technique, the fire engine draws water for fire fighting from an unpressurized supply, such as a portable water tank, pool, or other static water source, instead of drawing water from a pressurized water supply, such as a fire hydrant. Under complete vacuum conditions, a pump can lift water 33.9 feet (10.3 m), but no pump on a fire apparatus is capable of producing a perfect vacuum. | ||
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Suction hose can also be used to extend the range of a water tender's dumping capability, if the fittings of the suction hose match those of the tender dumping water. This could be used to fill a portable dump tank not immediately adjacent to the water tender, from which another fire engine can draft. Since water movement during dumping relies on gravity, rather than mechanical pressurization, suction hose is useful for this task. | Suction hose can also be used to extend the range of a water tender's dumping capability, if the fittings of the suction hose match those of the tender dumping water. This could be used to fill a portable dump tank not immediately adjacent to the water tender, from which another fire engine can draft. Since water movement during dumping relies on gravity, rather than mechanical pressurization, suction hose is useful for this task. | ||
==Sources== | ==Sources== | ||
[http://en.wikipedia.org/wiki/Hard_suction_hose Wikipedia Suction Hoses] | [http://en.wikipedia.org/wiki/Hard_suction_hose Wikipedia Suction Hoses] | ||