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Scuba Forum / General / September 2006What is the minimum safe operating temperature of a scuba tank?
What is the minumum temperature that a fully pressurized 3000 psi aluminum scuba tank can safely withstand for an indefinite period? > What is the minumum temperature that a fully pressurized 3000 psi > aluminum scuba tank can safely withstand for an indefinite period? Now there's an interesting question. I haven't a clue. Lee > > What is the minumum temperature that a fully pressurized 3000 psi > > aluminum scuba tank can safely withstand for an indefinite period? > > Now there's an interesting question. I haven't a clue. > > Lee But I was told that tanks should be emptied before storage for a long time .. About temperature, just avoid the extremes ? >> > What is the minumum temperature that a fully pressurized 3000 psi >> > aluminum scuba tank can safely withstand for an indefinite period? [quoted text clipped - 6 lines] > time .. > About temperature, just avoid the extremes ? I saw a chart today that indicated Viton O-rings were good from 50 below to 200 above Fahrenheit. I don't know about the aluminum, but considering aircraft construction and flight temps, I would think that the aluminum would survive at any temperature within a relatively normal climate.  SignaturePopeye It is the mark of an educated mind to be able to entertain a thought without accepting it. - Aristotle www.finalprotectivefire.com > But I was told that tanks should be emptied before storage for a long > time .. About temperature, just avoid the extremes ? It seems you've been told a lot of things that differ from what others believe or were told. Most people, including me, believe that tanks should not be emptied but, instead, should have at least 50 psi in them, give or tank. Mine are generally stored full, but they're not in long term storage. They're usually stored for no more than a year. Lee >> But I was told that tanks should be emptied before storage for a long >> time .. About temperature, just avoid the extremes ? [quoted text clipped - 6 lines] > >Lee Mine always get put up with 500 psi. Air in the tanks keeps water in the atmosphere from getting in. Signaturedillon If you can't figure out how to unmunge my address, email me and I'll explain it. > >> But I was told that tanks should be emptied before storage for a long > >> time .. About temperature, just avoid the extremes ? [quoted text clipped - 10 lines] > > Air in the tanks keeps water in the atmosphere from getting in. What a concept. Now if only we could bottle that and find a way to make it work on in-laws... > But I was told that tanks should be emptied before storage for a long > time .. Never 'emptied', but with just enough pressure in it to assure it stays above ambient. That way no outside air( and it's water) gets in. >What is the minumum temperature that a fully pressurized 3000 psi >aluminum scuba tank can safely withstand for an indefinite period? Operating (subject) or storage. Obviously, once you hit 32 degrees, operation of the tank is no longer an issue. If you're talking about storage, it the termperature at which Al becomes brittle. Look it up in your CRC. Signaturedillon If you can't figure out how to unmunge my address, email me and I'll explain it. > What is the minumum temperature that a fully pressurized 3000 psi > aluminum scuba tank can safely withstand for an indefinite period? Since AL tanks are used in every diving environment on earth, I would say that you need not worry. > Since AL tanks are used in every diving environment on earth, I would say > that you need not worry. What if he's not planning on using it for diving. I have an 80 cubic foot Luxfer in the corner of our bedroom that's never been using for anything except O2. It's not medical O2, you understand, just O2. Lee >>What is the minumum temperature that a fully pressurized 3000 psi >>aluminum scuba tank can safely withstand for an indefinite period? > > Since AL tanks are used in every diving environment on earth, I would > say that you need not worry. Is Al used when diving in liquid Nitrogen? I have to recover some dropped fetuses at my local fertility clinic. > > Since AL tanks are used in every diving environment on earth, I would > > say that you need not worry. > Is Al used when diving in liquid Nitrogen? > I have to recover some dropped fetuses at my local fertility clinic. Bastard. I'd definately wear my weazle then. Drysuit might not be necessary, as you won't get wett. frank > What is the minumum temperature that a fully pressurized 3000 psi > aluminum scuba tank can safely withstand for an indefinite period? Here is some info: http://www.luxfercylinders.com/support/maintenance/cm5.shtml Jay http://www.divewithjay.com |
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