Kw backpressure correction factor for liquid PSVs
Kw backpressure correction factor for liquid PSVs
(OP)
Regarding the backpressure correction factor for balanced bellows PSVs in liquid service, Kw:
Has anyone seen values for Kw for backpressure/setpressure ratios greater than 80%?
I have a situation where I have a ratio greater than 80%, but I have never seen Kw values published for this range.
Has anyone seen values for Kw for backpressure/setpressure ratios greater than 80%?
I have a situation where I have a ratio greater than 80%, but I have never seen Kw values published for this range.
RE: Kw backpressure correction factor for liquid PSVs
If this is a check for an existing system, again, re-evaluate your scenarios. Check to see if your relief valve is the correct size (too large?) or type. You may have to improve your piping.
Check with the vendor you are interested in. They may be able to advise further.