Pig lauchers
Pig lauchers
(OP)
I have a question on pig launchers.
Do pig launchers and receivers always require a block and bleed arrangement for pig retrieval
Do pig launchers and receivers always require a block and bleed arrangement for pig retrieval





RE: Pig lauchers
My judgment is that you'll need them to completely isolate your pigging activity.
RE: Pig lauchers
Good luck,
Latexman
RE: Pig lauchers
RE: Pig lauchers
RE: Pig lauchers
Steven van Els
RE: Pig lauchers
It does depend on the pressure rating of your system.
What normally we used, for liquid system having 600# and above, a double block and bleed valve is required.
For gas system, for system having 900# and above, a double block and bleed valve is required. If H2S in the gas stream is high (SOUR Service), system having 600# and above, double block and bleed valve is required.
Thanks
Rusman. CEng, PEng
Process