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2. Fire hydrant - Wikipedia

   en.wikipedia.org/wiki/Fire_hydrant

   Fire hydrant. A fire hydrant, fireplug, firecock (archaic), [1] hydrant riser or Johnny Pump[2] is a connection point by which firefighters can tap into a water supply. It is a component of active fire protection. Underground fire hydrants have been used in Europe and Asia since at least the 18th century.

3. Reduced pressure zone device - Wikipedia

   en.wikipedia.org/wiki/Reduced_pressure_zone_device

   Reduced pressure zone device connected to a fire hydrant. A reduced pressure zone device (RPZD, RPZ, or RPZ valve) is a type of backflow prevention device used to protect water supplies from contamination. RPZDs may also be known as reduced pressure principle (RP), reduced pressure principle backflow prevention devices, [1][2] reduced pressure ...

4. Water distribution system - Wikipedia

   en.wikipedia.org/wiki/Water_distribution_system

   An example of a water distribution system: a pumping station, a water tower, water mains, fire hydrants, and service lines [1] [2]. A water distribution system is a part of water supply network with components that carry potable water from a centralized treatment plant or wells to consumers to satisfy residential, commercial, industrial and fire fighting requirements.

5. Fire sprinkler system - Wikipedia

   en.wikipedia.org/wiki/Fire_sprinkler_system

   A fire sprinkler system is an active fire protection method, consisting of a water supply system providing adequate pressure and flowrate to a water distribution piping system, to which fire sprinklers are connected. Although initially used only in factories and large commercial buildings, systems for homes and small buildings are now available ...

6. Standpipe (firefighting) - Wikipedia

   en.wikipedia.org/wiki/Standpipe_(firefighting)

   Standpipe (firefighting) A standpipe or riser is a type of rigid water piping which is built into multi-story buildings in a vertical position, or into bridges in a horizontal position, to which fire hoses can be connected, allowing manual application of water to the fire. Within the context of a building or bridge, a standpipe serves the same ...

7. Hydraulic calculation - Wikipedia

   en.wikipedia.org/wiki/Hydraulic_calculation

   Hydraulic calculations verify that the water flowrate (or water mixed with additives like firefighting foam concentrate) through piping networks for the purpose of suppressing or extinguishing a fire will be sufficient to meet design objectives. The hydraulic calculation procedure is defined in the applicable reference model codes such as that ...

8. Thieves are stealing L.A. County fire hydrants by the ... - AOL

   www.aol.com/news/hydrants-vanish-imperiling-l...

   In parts of Los Angeles County, fire hydrants have become a hot item. Thieves have stolen at least 302 hydrants since the start of 2023 in several areas of the county, according to Golden State ...

9. Water flow test - Wikipedia

   en.wikipedia.org/wiki/Water_flow_test

   A water flow test, also known as a hydrant flow test, [1] is a way to measure the water supply available at a building site, usually for the purposes of installing a water based fire protection system (fire sprinkler system). The most common test involves measuring the flow of water flowing out of a municipal fire hydrant (measured in litres or ...