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Safety relief valves on jacket pressure vessels

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iloveboilers

Mechanical
Nov 22, 2023
1
On jacketed pressure vessels, should a safety relief valve be placed on the shell, the jacket, or both? I assumed that since the shell design pressure is lower for this application, that a safety relief valve will be needed on the shell. I have included the pressure vessel info below. Thank you.

Shell design pressure = 30psi
Jacket design pressure = 45psi
 
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The shell and jacket are separate pressure vessels and each one requires its own relief valve.
 
iloveboilers said:
On jacketed pressure vessels, should a safety relief valve be placed on the shell, the jacket, or both?
Not an easy question. In general answer is - both. In practice - depends on jacket design, code, overpressure source/scenario and protection method applied.
Describe your case in details.
 
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