Small, low pressure, stainless safety valve
Small, low pressure, stainless safety valve
(OP)
Can anyone help me source a small pressure relief valve for gas service? I've tried all the manufacturers I can think of, but have turned up nothing. The requirements are:
Set pressure : 0.45 barg.
Max accumulated pressure 0.5 barg.
Size 1/2" or 1" inlet.
Relieving area is about 25 mm2.
Materials : Stainless (essential), PTFE (ideally)
Balanced type.
Flow rate is relatively low, and I'm stuck with an existing vent line, which gives a high built up back pressure. Larger balanced types would chatter excessively due to the low flow. The smallest pilot operated valve I've found is 2", and seems rather over the top.
Any advice?
Thanks
Ian
Set pressure : 0.45 barg.
Max accumulated pressure 0.5 barg.
Size 1/2" or 1" inlet.
Relieving area is about 25 mm2.
Materials : Stainless (essential), PTFE (ideally)
Balanced type.
Flow rate is relatively low, and I'm stuck with an existing vent line, which gives a high built up back pressure. Larger balanced types would chatter excessively due to the low flow. The smallest pilot operated valve I've found is 2", and seems rather over the top.
Any advice?
Thanks
Ian





RE: Small, low pressure, stainless safety valve
Good luck,
Latexman
RE: Small, low pressure, stainless safety valve
Other than the Fisher relief valves, have you considered a non-reclosing type relief device such as a rupture disc or rupture pin valve?
Also, Consolidated makes a small balanced piston type valve, model 19000MBP that you may want to check....
h
I don't have experience with the 19000MBP but the one time I've seen it used was in a liquid, solvent service and, unfortunately, there were issues with the seal on the piston.
RE: Small, low pressure, stainless safety valve