Pressure reduction valve


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Terms & Synonyms

Official WHO Definition

A device that regulates pressure in liquids or gases by reducing a higher pressure to a definite lower pressure, maintaining the liquids or gases at a constant pressure (WHO 2006).

Other Definitions


Interpretations and Explanations

A pressure reduction valve is a device that is designed to deliver a constant reduced pressure on the downstream side of the device to protect against intermittent excessive pressure surges. It is a valve that reacts to fluctuating upstream pressures (World Plumbing Council Working Group 2008). A pressure reduction valve can deliver other advantages such as:  - Reduced damage to appliances from excessive supply pressures.- Reduced water pressure, reduces water consumption.- Reduced water consumption, reduces energy use in a building particularly from the heated water supply.- Reduced water pressure, reduces plumbing noise.- Reduced pressure will extend the service life of washing machines, hot water systems, valves and other mechanical devices (World Plumbing Council Working Group 2008).


WHO (2006) Health aspects of plumbing

WHO Lexicon page (translations and examples)

See also

External Resources


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