Answer / kapil

capacity of control valve (cofficent factor)= Q/(Delta P/d
or roho)1/2
Q qauntity of flow rate.
Delta P is Diffrential Pressure =input -output
d is density of liquid.
then u can find out capacity of control valve

Answer / informative

Rated capacity of control valve Cv is what we get through
series of experimental interpolation and by manual
calculation else by series of derivations.

Answer / smart_dude

max capacity of control valve is max value of cv that you
can use at max opening on control valve here we get max
flow rate also
but for everycontrol valve a small amount of margin is
recomand so rat5ed cappicty is abt 90 to 95 %age of full
capacity

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