Difference in Cv for Full Bore Ball valves of different brands..
Difference in Cv for Full Bore Ball valves of different brands..
(OP)
Dear Experts,
I was going through specifications of different brands of full bore ball valves and finds that the Cv values are all different? for example for a 3" full bore ball valves, one brand states 1300, another states 1000, and one states 600. All values are in Cv. Shouldn't typical full bore ball valves should be pretty similar and shouldn't have such drastic differences?
Best Regards,
Amateur Engrg
I was going through specifications of different brands of full bore ball valves and finds that the Cv values are all different? for example for a 3" full bore ball valves, one brand states 1300, another states 1000, and one states 600. All values are in Cv. Shouldn't typical full bore ball valves should be pretty similar and shouldn't have such drastic differences?
Best Regards,
Amateur Engrg





RE: Difference in Cv for Full Bore Ball valves of different brands..
However, unless you have a very critical application it is unlikely to matter. A typical Cv for a fully open 3" globe valve is 110, and even for a butterly valve it is about 330 - so the pressure drop introduced by your ball valve is unlikely to impact on the overall line hydraulics.
Katmar Software - AioFlo Pipe Hydraulics
http://katmarsoftware.com
"An undefined problem has an infinite number of solutions"
RE: Difference in Cv for Full Bore Ball valves of different brands..