Oil Gas Separator PCV - Fail Open or Closed?
Oil Gas Separator PCV - Fail Open or Closed?
(OP)
Hi
I'd like to know which kind of PCV valve to flare should we install to oil gas separator, ie, Fail to Open or Fail to close.
Thanks in davance
I'd like to know which kind of PCV valve to flare should we install to oil gas separator, ie, Fail to Open or Fail to close.
Thanks in davance





RE: Oil Gas Separator PCV - Fail Open or Closed?
Besides, you've probably got other safety trip loops to address high pressure events on this separator, and you'd most likely want this PCV to go to close position during an ESD, given that one of the causes for an ESD could also be low pressure on the plant main instrument air header ??
RE: Oil Gas Separator PCV - Fail Open or Closed?
A PCV should not be a pressure safety device and therefore should fail close. There should be further higher integrity devices ( Spring relief valves, bursting discs etc) which protect against high pressure.
I'm more interested to know what this PCV is used for - normal operation?? to flare?? That's a criminal waste of gas if it is.
Remember - More details = better answers
Also: If you get a response it's polite to respond to it.
RE: Oil Gas Separator PCV - Fail Open or Closed?
Best regards, Morten