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Cv ratings

Is the Cv rating of a valve the maximum flow rate allowable through it?



  • Brad White_125
    Brad White_125 Member Posts: 28
    Cv Ratings

    The Cv rating as commonly used in the U.S., is the flow rate through a valve (or other device) in Gallons per Minute at a pressure drop of 1.0 PSIG (2.31 feet of head).

  • ALH_4
    ALH_4 Member Posts: 1,790

    The head loss through the valve at a given flow rate is: hl=(1.52*gpm/Cv)^2

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