Valve Flow Rate for Liquid
Valve Flow Rate for Liquid Formulas |
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\( Q = C_v \sqrt{ \Delta p\;/\;SG } \) (US units) \( Q = K_v \sqrt{ \Delta p\;/\;SG } \) (SI units) |
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Symbol | English | Metric |
\( Q \) = valve flow rate | \(ft^3\;/\;sec\) | \(m^3\;/\;s\) |
\( C_v \) = valve flow coefficient (US units) | \( dimensionless \) | |
\( K_v \) = valve flow coefficient (SI units) | \( dimensionless \) | |
\( \Delta P \) = valve pressure differential | \(lbf\;/\;in^2\) | \(Pa\) |
\( SG \) = specific gravity of liquid (water at 60°F = 1.0000) | \( dimensionless \) |
Tags: Flow Liquid Valve Sizing