LPG-Propane Cylinder Pressure Rating - Operating Pressure LPG cylinders and vessels are designed to handle much higher than normal operating
pressures.
The typical cylinder would probably only burst with pressures over 6895 kPa or 1,000 PSIG. Pressure gaugeThat's about 5x the normal pressure.
This would vary by the manufacturer and the cylinder itself.
LPG cylinders have pressure relief valves incorporated into the main valve. The typical pressure relief valve setting is 2585 kPa or 375 PSIG. So, the
cylinder would never actually go above this, as the valve would open and lets some gas escape, limiting the pressure inside the cylinder.
LPG cylinder pressure varies with temperature.
Even at 70ºC (158ºF), well beyond normal ambient temperatures, the pressure would only be 2482 kPa (360 PSIG). So, not only wouldn’t it approach
bursting pressure (≈ 1,000 PSIG) but, under normal circumstances, it would never even reach the 375 PSIG required to trigger the pressure relief
valve.
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