Valve Pressure Differential for Liquid

Written by Jerry Ratzlaff on . Posted in Fluid Dynamics

Valve Pressure Differential for Liquid Formula

(Eq. 1)  \(\large{ \Delta P =   SG  \left( \frac{Q}{C_v} \right)   }\)     (US units)

(Eq. 2)  \(\large{ \Delta P =   SG  \left( \frac{Q}{K_v} \right)   }\)     (SI units)

Where:

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

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

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

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

\(\large{ Q }\) = valve flow rate

 

Tags: Equations for Pressure Equations for Valves