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The following hose and coupler combinations are used in U.S. wildland fire fighting. [10] 3 ⁄ 4-inch hose with 3 ⁄ 4-11.5NH ASME threads (Garden Hose Thread) 3 ⁄ 4-inch hose with 3 ⁄ 4-14NPSH ASME threads (USDA 5100-107d specification) 3 ⁄ 4-inch hose with Forestry Coupling (CAN/ULC-S551-13 specification and USDA 5100-192 specification)
Attack hose is a fabric-covered, flexible hose used to bring water from the fire pumper to the nozzle. This hose ranges in nominal inside diameter from 1.5 to 3 in (38 to 76 mm) and is designed to operate at pressures up to about 400 psi (2,760 kPa).
Booster hose Small-diameter fire hose (3/4–1 inch), often carried on booster reel, preconnected to pump of an engine (and the booster tank) for putting out small fires near the truck without having to connect to a fire hydrant; easily recovered with a motorized reel. Also known as "red line" for the common red rubberized outer layer.
A fog nozzle. A fog nozzle is a firefighting hose spray nozzle that breaks its stream into small droplets.By doing so, its stream achieves a greater surface area, and thus a greater rate of heat absorption, which, when compared to that of a smoothbore nozzle, speeds its transformation into the steam that smothers the fire by displacing its oxygen.
The 100 mm (4-inch) and 125 mm (5-inch) Storz couplers have been specified in NFPA 1963, Standard for Fire Hose Connections, since the 1993 edition. U.S. cities that have fire hydrants with 125 mm Storz connectors include Raleigh, NC [5] and the City of Corvallis, OR (adapter on 4-inch threaded outlet). [6]
Most modern American fire apparatus use some sort of variation of the Mattydale lay. [3] [4] [5] There are several different types of "hose loads" in use, which is the way the hose is folded in the lay: Accordion load – The hose is loaded so that when it is flat, it is standing on end. The finished load resembles an accordion.
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