I am trying to locate a high pressure relief valve that can withstand up to 1500-2000psi before breaking. It needs to be no longer than .470" in length and a dia. no greater than .425". Does anyone know of this valve??? This might be possible, but not with any relief valve that uses a spring. I've never run across any that small for any pressure even remotely near those pressure specs. You could try posting this specific question on the Safety Relief Valve engineering (PSV) forum.Circle-Seal make small relief valves. They have been known to make specials.I ended up designing my own valve for my product and made them in house... I was just hoping for something off-the-shelf so to speak. Thanks for all your input everyone. Much appriciated. Have you looked at bursting discs as a solution? If you can accept a relief that does not shut down again this will fit all your parameters, including the commercial side.

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