CV control valve
CV control valve
(OP)
Hello,
How can I figure out the flow coefficient CV under certain conditions?
The fluid is a gas.
Data available are: mass flowrate, inlet pressure, pressure drop, inlet temperature, vapour molecular weight,
compressibility factor, viscosity at inlet temperature and specific heat ratio.
I need to figure out it for a control valve with non-critical flow (dp<0.5p1).
Is it the same for any other type of valve?
Thanks.
How can I figure out the flow coefficient CV under certain conditions?
The fluid is a gas.
Data available are: mass flowrate, inlet pressure, pressure drop, inlet temperature, vapour molecular weight,
compressibility factor, viscosity at inlet temperature and specific heat ratio.
I need to figure out it for a control valve with non-critical flow (dp<0.5p1).
Is it the same for any other type of valve?
Thanks.





RE: CV control valve
1. You ask the supplier or go to the link below.
2. Not the same, see link below.
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RE: CV control valve
Download the Control Valve Handbook. This includes the formula for sizing control valves in gas service and more. Contact your control valve peddler and request a sizing program.