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Thread: Control Valve Sizing

  1. Control Valve Sizing

    As a beginner, just want to know the type of flow rate to be taken in to control valve sizing, whether it is a volumetric or mass flow rate.

    Thanks in advance...


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  3. #2

    Re: Control Valve Sizing

    Hi, control valve sizing involves the calculation of the flow coefficient of the valve (Cv).

    Cv is a constant related to the geometry of a valve, for a given travel, that can be used to establish flow capacity. It is the number of U.S. gallons per minute of 60°F water that will flow through a valve with a one pound per square inch pressure drop.

    A good book to read is Fisher's control valve handbook, just google it.

    Hope this helps.

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