Could somebody explain (if possible) how a two-stage pressure-reducing valve (PCV) can allow to avoid choked flow through it, when upstream pressure is 10000 mbarg (10 barg) and downstream pressure is

I have some problem with new on-off butterfly valve which provide zero leake(API598) by metal to metal sealing but this mention valve fail acceptance test in my workshop hence I contact valve's superv

Hello. I have a project using a lot of diaphragm seal DP tx to measure level. But i have a lot of query regarding this. Because i nvr do it before. Any experience guy please help to advise me. Thanks

I am just looking for confirmation of the difference between self relieving and non-relieving filter regulators. I need to convince our client there is no risk to a diaphragm actuator downstream of

How do anti siphon valves work? I'm told that you use these to shut-off a flow, when the flow is higher than normal. I'm googling a schematic to see how these work, but luck so far.

We have an office argument going about the use of ball valves versus gate valves on a sewer force main. This particular project is a 12" force main running about 2.5 miles and discharging into a manh

I would like to know if choked flow can occur in a valve even if the velocity of air passing through the valve has not reached Mach 1. Also how will I determine is the flow is choked or not, given I k

I am designing a quarter turn ball control valve. I have system inputs for pressure ranging from 350-750 psi and a flowrate of 52 gpm. It has also been given that due to another valve downstream, th