Last edited 28 Jul 2022

Main author

BSRIA Institute / association Website

Vacuum relief 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 a vacuum relief valve is: ‘Installed in some unvented hot water systems to avoid depressurisation of the system due to cooling.’

--BSRIA

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