8" Gate valve removal?
8" Gate valve removal?
(OP)
Hi, if we are to remove an 8" gate valve or any other size gate valve from a pipeline, does the valve have to be in an open or closed position while removing? Logically it shouldn't make any difference but I've overheard from someone that it has to be in an open position since at closed position the valve body slightly expands therefore it would be difficult to remove.
Thanks
Thanks





RE: 8" Gate valve removal?
"Beauregard Gustafson" strikes again!
Sometimes its possible to do all the right things and still get bad results
RE: 8" Gate valve removal?
Hamza, stick to logic and you won't go wrong. This is a case in point. Whoever the someone is, make sure you don't bother overhearing them again....
Remember - More details = better answers
Also: If you get a response it's polite to respond to it.
RE: 8" Gate valve removal?
RE: 8" Gate valve removal?
RE: 8" Gate valve removal?
It had a about 20 meters of head (residual). Too much pressure on one side, though it can be operated. But not easy to pull out the valve.
Didn't want to drain the whole header as well (would take about 1 hr from estimate). So had the valve opened to "equalize", unbolted and pulled out the valve, and in went the new valve (opened), bolted and closed. It was a bit wet, but did get done quick.
RE: 8" Gate valve removal?
Thanks,
Ehzin