Valve Flow Coefficient for Liquid

Written by Jerry Ratzlaff on . Posted in Fluid Dynamics

Valve Flow Coefficient for Liquid Formulas

\(\large{ C_v = Q  \sqrt {\frac {\Delta p} {SG} } }\)  (US units) 
\(\large{ K_v = Q  \sqrt {\frac {\Delta p} {SG} } }\)   (SI units) 

Where:

\(\large{ C_v }\) = valve flow coefficient (US units)

\(\large{ K_v }\) = valve flow coefficient (SI units)

\(\large{ SG }\) = specific gravity of liquid (water at 60°F = 1.0000)

\(\large{ Q }\) = valve flow rate, Gallons per Minute

\(\large{ \Delta p }\) = valve pressure differential, PSI

 

Tags: Equations for Coefficient Equations for Flow Equations for Valves Equations for Liquid Equations for Valve Sizing