Fire glossary
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39 entries in the Fire glossary beginning with "H"
Hotshot crew
An extensively trained group of approximately twenty people which specializes in wildfire suppression with little or no outside logistical support.
Hotshot crew
Intensively trained fire crew used primarily in hand line construction, and organized primarily to travel long distances from fire to fire as needed rather than serving only one geographic location.
HPF
See High Pressure Fog.
Hurst tool
See Hydraulic spreader.
Hydrant
Pressurized water source for fire engine. May also be a dry hydrant" for drafting from static water source. Compare "standpipe".
Hydrant Assist Valve
A valve connected to the hydrant by the first due engine allowing the second due engine to boost the pressure in the intake line. Used for hydrants with low pressure, attaching multiple engines to one hydrant, or boosting pressure in the intake line to accommodate for friction loss.
Hydrant Gate
A gate valve used to control water flow through one of the discharge ports on a hydrant with two or more ports. Typically, one fire hose is initially connected to one discharge and the hydrant gate is connected to one or more of the other outlets. This allows a second hose to be connected to a hydrant that is flowing water without shutting down the main valve to make the connection.
Hydrant wrench
Tool for opening valve of fire hydrant; may be simple spanner, box wrench, or adjustable wrench, or a specialized tool for use on anti-vandalism" valves. For example some valves require a magnet to activate a cam in order for the valve to be turned on.
Hydraulic spreader, (Jaws of Life)
Mechanical levering device with hydraulic cylinders powered by a pump; used for forcible entry or spreading vehicle or structure parts to permit extrication of a victim. Also called Hurst Tool which is a type that includes cutter and ram/jacking features.
39 entries in the Fire glossary beginning with "H"

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