Block Valves Under PSV's?
Block Valves Under PSV's?
(OP)
I have a natural gas line for a boiler that was built to ASME Section 1 Code. I wanted to know if anyone has any links/advice to see if it is possible to install a block valve under the relief valve.





RE: Block Valves Under PSV's?
RE: Block Valves Under PSV's?
If you do, it should be car sealed open as a minimun. Also, it may be a good idea to have a second PSV (with CSO block valve) while you service the other one.
"Do not worry about your problems with mathematics, I assure you mine are far greater."
Albert Einstein
Have you read FAQ731-376: Eng-Tips.com Forum Policies to make the best use of Eng-Tips Forums?
RE: Block Valves Under PSV's?
Best regards
Morten