Section Vb1: Valves - Johnson Controls
Determine the uncontrollable flow rate through a 6 in. globe valve where Cv equals 350 and rangeability equals 10.4:1. Assume the full flow (wide open) differential pressure across the valve equals 5 psig. It should be noted that in reality the pressure drop across a control valve will normally rise due to pressure shifts within the hydronic ...
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