It is customary to use a globe valve to give the regulating capability required for a bypass, and the Cv values you have given are typical for globe valves.

How can I calculate/estimate the air flow through a butterfly valve as a function of the rotation angle/opening.

Looking for a recommendation for butterfly valves 10 -12" size for use in a SYLTHERM SERVICE low temperature application -112C to plus 230C.

Two particular issues we are interested in -1. Is slug flow more damaging to butterfly valves than multi-orifice control valves?

I would like to know what is the max. recommended flow velocity for a 132" butterfly valve used as a water regulating valve in a dam.

"EXPANSION BELLOWS MOLLER-BALG" made of "FLEXIBLE THERMOPLASTIC PLASTIC".I thought that bellows were not applicable to quarter-turn valves

The process of selecting valves for a plant handling LPG (both liquid and gas). Normally for larger sized valves (4" and up), the double eccentric, firesafe BF valve is a good choice, especially due t

Sand level in the process fluid is 250 PPM. Fluid is sour Oil and Gas mixture.