- Hydrant
A fire hydrant is a fitting installed on a fire main with a single or dual valve outlet designed for connecting a fire hose. Unlike a fire hose reel intended for occupant use, a fire hydrant enables attending fire brigade personnel to deliver directed high-capacity water during a fire.
Under Australian Standard AS 2419.1:2021, fire hydrants are categorised by operational role, including attack and feed hydrants as shown in the table below;
Clause Term Definition 1.3.14 fire hydrant fitting installed on the fire main with a single valve outlet or two single valve outlets for the connection of fire hoses. 1.3.14.1 additional hydrant internal attack fire hydrant located to provide fire hose coverage to a floor area not otherwise covered by attack fire hydrants located within a fire-isolated stair or adjacent to a non-fire-isolated stair 1.3.14.2 attack fire hydrant1 fire hydrant located downstream of the fire brigade booster connections of a fire brigade booster assembly. 1.3.14.3 attack/feed fire hydrant2 external attack fire hydrant located not more than 20 m from a hardstand that is used to supply a fire brigade pumping appliance 1.3.14.4 feed fire hydrant external fire hydrant located not more than 20 m from a hardstand that is used to supply a fire brigade pumping appliance through the direct connection of fire hoses between the fire hydrant and the fire brigade pumping appliance. 1.3.15 fire hydrant system assembly of pipes, fire hydrant valves and other components dedicated to firefighting that permits the fire brigade to access a controlled supply of water 1.3.16 fire hydrant valve3 self-contained mechanical device incorporating a loose jumper valve, installed on a fire main and used for the transfer of water to firefighting equipment - 1
An attack fire hydrant is for use by fire brigade or other trained firefighting personnel to directly attack a fire through the direct connection of fire hoses.
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An attack/feed fire hydrant is used either as an attack fire hydrant when the fire hydrant system is boosted by a fire brigade pumping appliance or as a feed fire hydrant.
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For more information on fire hydrant valves, refer to AS 2419.2. Also, In AS 2419.1 a reference to a fire hydrant is also a reference to a fire hydrant valve.
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