Flowrate throught butterfly valves
Flowrate throught butterfly valves
(OP)
S!
I'd like to know how can I calculate/estimate the air flow through a butterfly valve as a function of the rotation angle/opening. The catalog comes with the Cv as a function of rotation angle. Can I use the sizing equation in terms of flow, not in Cv?
I'd like to know how can I calculate/estimate the air flow through a butterfly valve as a function of the rotation angle/opening. The catalog comes with the Cv as a function of rotation angle. Can I use the sizing equation in terms of flow, not in Cv?





RE: Flowrate throught butterfly valves
Regards
Seán Moran
www.expertise-limited.co.uk
RE: Flowrate throught butterfly valves
Good luck,
Latexman
RE: Flowrate throught butterfly valves
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"Pumping accounts for 20% of the world's energy used by electric motors and 25-50% of the total electrical energy usage in certain industrial facilities."-DOE statistic (Note: Make that 99% for pipeline companies) http://virtualpipeline.spaces.live.com/
RE: Flowrate throught butterfly valves
Here is what I think you are referring. From Internal flow systems, Miller. I've used the chart for a type C butterfly with very good results.
RE: Flowrate throught butterfly valves
Thanks a lot, guys.