AUTOMATIC VALVE CORP

Valve Sizing Calculations

Find the appropriate valve size for an application by calculating the required C v (flow coefficient) as shown below and then choose a valve with a Cv equal to or greater than the calulated valve. The equation is:

Valve Sizing Chart

The chart below may be used instead of mathmatical calculations for close approximations or required valve Cv.

The Valve Sizing Chart assumes the following:

Valve inlet pressure is 80 psig.
Pressure drop through the valve is 10% inlet pressure or 8 psi.
There are no line restrictions between the valve and cylinder.
Distrance between the valve and cylinder is 6 feet or less.

Valve Conversion Chart

Automatic Valve 41144 Vincenti Ct Novi MI 48375-1922 Tel (248)-474-6700
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