Cv for standard Globe Valves
Cv for standard Globe Valves
(OP)
Hi does anyone know a source for Cv values for standard cast steel globe valves? My project is using 250NPS to 400NPS valves.
Thanks
Thanks
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Cv for standard Globe Valves
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RE: Cv for standard Globe Valves
If you estimate 15D^2 you won't be horribly wrong.
1":15
2":60
3":135
etc.
RE: Cv for standard Globe Valves
To get the Cv for a particular valve, you need to go to the manufacturer.
Oh, by the way, the Cv is more dependent on the port size than body size (yes, the body size also matters, but a bit less).
For a Fisher 1" D body:
Port Cv
1/4" 1.66
3/8" 4.03
1/2" 6.51
3/4" 12.3
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RE: Cv for standard Globe Valves
I agree with the others, only obtain the information from the individual manufacturer. (I have many years experience in this.)
Paul
www.ostand.com
RE: Cv for standard Globe Valves
The valve sizes are 250 - 400mm.
The valves are standard isolation API 600 type globe valves, not control valves.
I can not find data from the manufactures. but since they are all the same pattern they maybe genic data avaible
cheers.
RE: Cv for standard Globe Valves
www.y
RE: Cv for standard Globe Valves