Maintains the designed flow rate within the psid range, specified by the manufacturer’s, even as the system pressure varies. Provides system stability as it reacts to maintain overall system balance even when other branches modulate. Full authority temperature control can be thereby achieved. Acts as a pressure differential regulator at all varying load conditions by absorbing additional system pressure changes within the valve itself. Constant “Flow rate” operation.
Applications include fan coils, VAV, branch lines, pumps, heating or cooling systems, multiple boiler arrangements, radiant lines, and terminal vents.