PSV flow rate
PSV flow rate
(OP)
Dear all
Could you help me to with any standard , specification to how calculate the flow rate needed for sizing orifice area for pressure safety valves installed on pig trap & pipeline for oil & gas services
Could you help me to with any standard , specification to how calculate the flow rate needed for sizing orifice area for pressure safety valves installed on pig trap & pipeline for oil & gas services





RE: PSV flow rate
Plenty of manufacturers publish PSV sizing manuals. See some of these:
http://valves.pentair.com/valves/Images/PVCMC-0296...
http://www.isibang.ac.in/~library/onlinerz/resourc...
http://www.spenceengineering.com/pdf/Spence-SRVs.p...
Dejan IVANOVIC
Process Engineer, MSChE
RE: PSV flow rate
I found API 521, after reviewing i understand we use PRV for P/L in two case thermal relief & fire case scenarios.Please advise
but i can not find the equation for flow rate calculation in fire case.
Could you tell me what is the cases for using PSV in Gas pipeline, and how to calculate the flow rate
RE: PSV flow rate
Launchers/receivers are typically not left full of liquid so I'm not personally sure just how realistic a fire case would be. no liquids, no vaporization during a fire. That's your call of course depending on your company's operating and design practices.
RE: PSV flow rate
it is also very helpful, just google "LESER engineering handbook"