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Indoor fire hose with a fire extinguisher. A fire hose (or firehose) 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, fire hydrant, or a portable fire pump.
High-rise pack Hose bundle prepared for carrying to a standpipe in a high-rise building, usually consisting of 50 or more feet of 1¾-inch hose and a combination nozzle. Hook forged steel hook at end of insulated pole of varying lengths; used for piercing and pulling building materials away from walls and ceilings. Similar to nautical gaff hook.
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.
9-Pattern Revolver Garden Hose Nozzle. Key Specs. Dimensions (H x W x D): 8 x 7 x 6 inches. Main Materials: Metal; ABS plastic. Spray Patterns: 9. This heavy-duty, value-packed garden hose nozzle ...
In fire protection engineering, the K-factor formula is used to calculate the volumetric flow rate from a nozzle. Spray nozzles can for example be fire sprinklers or water mist nozzles, hose reel nozzles, water monitors and deluge fire system nozzles.
Convergent nozzles accelerate subsonic fluids. If the nozzle pressure ratio is high enough, then the flow will reach sonic velocity at the narrowest point (i.e. the nozzle throat). In this situation, the nozzle is said to be choked. Increasing the nozzle pressure ratio further will not increase the throat Mach number above one.
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