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I would be more concerned about the safety release that is built into every cylinder. At a certain pressure, the safety release opens and a large volume of both gas and liquid is expelled. It happened to me, once. The cloud emitted is so dense that you can't see your outstretched hand.
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This is not true at all !
Did you dream this ?? If this really happened, you had better get it fixed quick, because this could make for a very dangerous situation.
In reality, a LP safety release valve releases the LP gas no faster than the gas is expanding and needs to release, which is seldom more than a hissing sound that can be heard and smelled when close by. It presents absolutely no hazard as long as there is no open flame w/in 50 feet.
It is not a pop off valve, such as found on an oxygen bottle, that really will expel its entire volume if it gets over pressured.
It is a bleeder valve, and will NEVER bleed off more than needed for expansion.