Flow Coefficients (Cv):
(Applicable to SS316 and Alloy 20)
Cv for size 1/2" = 4.25
Cv for size 3/4" = 9.56
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 = 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 |