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Extending Orifice Flow Data - okcc.com
Extending Orifice Flow BOX Q TRUMBULL, CT 06611 CT PHONE (203) 261-6711 TOLL FREE PHONE (800) 533-3285 FAX (203) 261-8331 O'KEEFE CONTROLS CO. 2003 ALL RIGHTS RESERVED e-mail website is the CV for the Orifice withdiameter = Other Orifice Sizes Air FlowTo calculate the required diameter of anorifice that is not included in the charts onpages 20-22 use the following equations are based on data taken forthe size no. 60 (.060" dia.) Orifice . QL dL = .060 Q60 in. :dL = diameter of the unknown = flow through the unknown = flow from chart on pages : ( data from page 21)At supply pressure of 50 psig and outlet atstandard conditions,Q60 = SLPM (from chart)Let:QL = 600 SLPM @ 50 psig 600 dL = .060 = .157 in. dia. Water FlowUsing the CV method for liquid flow, andusing measured CV data we can derive thefollowing formula to calculate requiredorifice QL dL = PWhere:dL = diameter of unknown Orifice (in.)
Extending Orifice Flow Data EXTRAPOLATION P.O. BOX Q • TRUMBULL, CT 06611 • CT PHONE (203) 261-6711 • TOLL FREE PHONE (800) 533-3285 • FAX (203) 261-8331
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