https://www.belimo.us/americas/ccv.html
Pressure Independent Characterized Control Valve (PICCV) a 2-way valve that combines the functionality of a control valve and a differential pressure regulating valve, creating ONE precise valve which is unaffected by pressure variations in a system.
The regulator controls the amount of flow that passes through the valve by the use of a diaphragm that moves according to the changes in pressure over the valve.
The regular section reacts to changes in differential pressure so that the flow remains constant regardless of pressure fluctuations.
All pressure changes are absorbed by the pressure regular allowing the differential pressure to be held constant over the control valve section thereby giving the same flow.
Post time: Jun-05-2017