Flow Data


Flow Data Chart

 





Flow Coefficients (Cv): Cv for size 1"     =  17
Cv for size 1.5"   =  40
Cv for size 2"     = 111
Cv for sizes 3"/4" = 210

Note: Flow rates shown above are for water.

 

Flow Calculations: Given the pressure drop and the specific gravity of the liquid, the flow rate can be calculated by the following formula:

 Q = Cv [∆P/G]0.5

 Where Q  = Flow in US gallons per minute (gpm)
               Cv = Coupling Flow Coefficient  (Cv is defined as the
                         amount  of flow of water in gpm for one psi drop in
                          pressure  across the coupling)    
               G   = Specific Gravity of liquid (water = 1.0)
               ∆P = Pressure drop across Coupling, psi

 

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