Is this ok to ship USPS
- Thread starter rogerhaun
- Start date
Ship it and dont worry about it...at the worst it leaks but it will never explode or hurt anyone . Af thanks are very very strong.
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Ack!!! No. You need to depressurize it. It is a rule for a reason. At altitude the pressure in the unpressurized cargo hold is half what it is at sea level. This is like doubling the pressure in your bottle.
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To all you "nay sayers" that recommend de-pressurize: What are you talking about?! Every PCP I ever purchased from manufacturer, vendor, or individual came to me with full pressure.
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I've had plenty of guns ( from dealers) and bottles delivered to me with air in them. UPS and USPS will tell you no way unless emptied. Drop the pressure to 800 psi or so, packaging has to be A+ and ship it UPS ground. Do not expedite or air ship. You should be fine. I would not use USPS but that's my opinion.
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At sea level the air is pressing on the bottle at 14.7 psi per sq. in. So at the edge of space the cylinder would only have 14.7 PSI more pushing against the inside of the or in actuality have 14.7 psi less pushing against the outside of the bottle, no problem! Now USPS I believe has a reg against shipping anything with pressure in it. Have people shipped guns with pressure in them, yes. But is it against the regulations, I believe so. I've had a retailer send me a lead acid battery through the mail before which I know for a fact is against USPS regs.
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I bought a used brocock commander from AOA and they sent it to me filled at 250 bar. No issues.
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Why risk it. Just dump the air. However if it is going ground shipping you would be fine but if it is going air I would not take the chance. Hell, why risk it at all actually. The person is buying it you can assume that they have the means to fill it. As far as those getting filled airguns through the mail as I too have gotten. All had air. Not so much that they were topped off but there was on the reg pressure in it. All came shipped ground as far as I know. Going air might be a different story.
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Yeah, to the bottle, atmospheric pressure changes are negligible.
Possible temperature changes have a greater impact on what the gauge will read, but higher altitudes are colder, so chilling it would reduce the pressure in the bottle as well, as long as the seals are rated for the temperature, I expect everything to be fine.
I've shipped and received all sorts of guns and tanks, and the only empty ones were leakers
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I bought a scba 45cf bottle a few years ago and it had 4500 psi in it when delivered to my house! It was wrapped in bubble wrap and packed in a cardboard box. I am glad no one knocked the guage off!
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Bottom line, it is NOT LEGAL to send a pressurized, high pressure cylinder!!! Just because some of you have received pressurized cylinders in the mail ONLY means they were not detected, not that it's LEGAL. Pressurized cylinders have brought down an aircraft in the past! PLEASE do not ship highly pressurized containers.
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