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Control valve Cv calculation

asked Feb 26, 2014 in Engineering by Dan01
How is Cv calculated for a control valve?
commented Feb 28, 2014 by RichS29 (4,320 points)
I am also interested to know the control valve Cv calculation procedure.

1 Answer

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answered Feb 1 by pasmith (3,320 points)

Cv = Q (G/ΔP)0.5

Where
Cv = Valve sizing coefficient
Q = Capacity in gallons per minute
ΔP = Pressure differential in psi
G = Specific gravity of fluid (water at 6000F = 1.0000)

 

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