Needle Valve Calculator

Calculate fine flow control through needle valves with Cv sizing and pressure drop estimation

Input Parameters

Results

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Effective Cv
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Pressure Drop
PSI
--
Power Loss
HP
--
Heat Generated
BTU/hr

Reference

Effective Cv = Cv × (% Open / 100)² ΔP = SG × (Q / Cv_eff)² HP = ΔP × Q / 1714 Heat = HP × 2545 BTU/hr