What are the safety release devices on a regulator, and how do they work?

What will be an ideal response?


Regulators may be equipped with either a safety release valve or a safety disc to prevent excessively high pressures from damaging the regulator. A safety release valve is made up of a small ball held tightly against a seat by a spring. The release valve will reseat itself after the excessive pressure has been released.


A safety disc is a thin piece of metal held between two seals. When a safety disc bursts to release excessive pressure, all of the gas in the cylinder will be released. A safety disc does not reseal, so it must be replaced before the regulator can be used again.

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