Open Flow Path for relief
Open Flow Path for relief
(OP)
I am evaluating some exchangers to determine if we need a relief valve. The only case is fire. If we car seal open the relief valves, the exchangers can relieve back to the tower. However, there is a fail open control valve in the path. My boss says you can't relieve through a control valve since it's a restricted flow, is this correct?





RE: Open Flow Path for relief
Good luck,
Latexman
Technically, the glass is always full - 1/2 air and 1/2 water.
RE: Open Flow Path for relief
What exactly do you mean by "car seal open the relief valves"? Jam them open?? Ni that case just have an open vent and remove the control valve.
My motto: Learn something new every day
Also: There's usually a good reason why everyone does it that way
RE: Open Flow Path for relief
RE: Open Flow Path for relief
However even if fully open, it will have a certain CV which will cause it to have a pressure drop. What that is depends on the valve size and trim, but could be considerable. Either way you can't put it in a relief line.
My motto: Learn something new every day
Also: There's usually a good reason why everyone does it that way