This is why the typical RV Fridge has a pressure relief device which is commonly called a PRV . The RV Fridge PRV is very limited because it is a fusible plug.
12.
Discharge from the relief device is an indication that either of the two check valves is'passing'( leaking past their shutoff seats ) or the relief valve itself is faulty.
13.
Two single stage, 1.5 MW positive displacement piston pumps, with variable speed drives, pressure pulsation dampeners and pressure relief devices are provided with one pump in operation and one standby.
14.
The safety issues for cryogenic helium are similar to those of liquid nitrogen; its extremely low temperatures can result in cold burns, and the liquid-to-gas expansion ratio can cause explosions if no pressure-relief devices are installed.
