Differential pressure control valve
Test Method for PICVs and DPCVs (BTS 1/2019), published by BSRIA in November 2019, defines a differential pressure control valve (DPCV) as: ‘A valve that operates to maintain constant differential pressure between two points that is, within limits, independent of the supplied differential pressure. The valve may operate mechanically or electronically.’
The Illustrated Guide to Mechanical Building Services, Third Edition (BG 31/2017), by David Bleicher, published by BSRIA in 2017, suggests that differential pressure control valves (DPCVs): ‘…are installed on variable flow systems to ensure that the differential pressure across a two-port valve does not exceed a set limit. This in turn limits the flow to a set value in the sub-branch, maintaining the control authority of the two-port valve.’
--BSRIA
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