Answer / sheik muhammed

flow coefficient of control valve.its calculated by the
given below formula:
CV = Q/(P/SG)^1/2
where:
CV -flow coefficient
Q -flow of liquid
P-pressure drop across the flow
SG-specific gravity of the liquid

CV=1.17KV => KV=.86CV

KV is metric unit of CV

the flow of water through a valve at 60 oF in US
gallon/minute at a pressure drop of 1 lb/in2.

Answer / naveed anwer

coefficient valve
one cv equal the flow of one u.s galleon(3.8 litter)per minutes of water at 60 F under a pressure drop of value of 1psi.

Answer / waqas

The Cv is actualy the Flow Coefficient of control valves.
It actually measures the friction experienced by a fluid as
it moves through some pipe / valve. The standard definition
of Cv is:
"the flow of water through a valve at 60 oF in US
gallon/minute at a pressure drop of 1 lb/in2."

Answer / faiyaz ahmad

Cv of control valve means co efficient of valve
Cv capacity of valve

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