Pressure regulating valve
The Illustrated Guide to Hot and Cold Water Services (BG 33/2014), written by Reginald Brown and published by BSRIA in 2014, it suggests that small pressure regulating valves (PRVs) are: ‘…installed prior to an unvented water heater or combi boiler to reduce mains pressure to 3 bar.’
The BSRIA guide to 'Commissioning Air Systems' (BG 49/2024), written by by Keith Barker and published by BSRIA in March 2024, explains how to commission ducted air distribution systems in buildings. It was originally published in 2013, then 2015 with the latest update in 2024.In the guide it defines 'regulating' as: 'The process of adjusting the fluid flow rates in a distribution system to achieve the design flow rates within the tolerances specified by the designer'
--BSRIA
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