I hope guy who invented wheel shud also have patented it. I was not asking for whole document just wasted to hav knowledge of particular topic.
But i appreciate efforts put by respected members
if you are going to do stress relieving then most probabely it will be low alloy steel valve. in low alloy steel high pressure valve always ask vendor to give graphite packing not ptfe because on your working temperature it will fail for sure.
and yes while doing pwht temperature will go more...
There should not be any big concern by using trim 12. the difference between both is only in trim 12 seat is stellite.
now the thing is where the difference lies. yes with stellite you can have some problem because in practices, hard-facing of seat through stellite can negatively affect the...
There are no standard guideline which generally being followed for valve Pm in process industry. Also it depends on the type of valve.
If it is a mechanically operated valve means valve with handle generally greasing is done whenever you get the opportunity.
In case of control valves which are...
there can be several reason of it.
if psv outlet was connected to any header so may be because of increased back pressure itz popping up on highr pressure.
pop up pressure decided by spring force. check your maintenance history,was any adjustment done with spring in past.
is there any cdsp...
I would suggest to use stuffing box packing with lantran ring with grease holes or a water ring. Mech seal will be very expensive because you will have to select an outside flushing fluid in sealing plan.
Hello
My question is there any standard or reference which gives exact guideline that whether we have to puncher a tube before plugging. This is the case of boiler where we have leak in a bend.
now can i remove the bend and plug the tube or i have to puncher the tube then plug it.
