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Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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acetelene tanks
I ran across a tank the other day that I THINK is an acetelene tank -
one of the little portable jobs. What numbers should be stamped in the top of the tank if it is an acetelene tank? it is 7.5" X 24" to the base of the valve and weighs 33 lb empty. has markings(something)CC-3AA180 675809 10T72 LCCO 462 467 If not acetetene, anyone know what it is?? Thanks |
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It isn't so much the stampings as the fitting. Does your acetylene regulator
thread into it? If so, it is very likely an acetylene tank, since the only other tanks I know of with that fitting are propane. - GWE wrote: I ran across a tank the other day that I THINK is an acetelene tank - one of the little portable jobs. What numbers should be stamped in the top of the tank if it is an acetelene tank? it is 7.5" X 24" to the base of the valve and weighs 33 lb empty. has markings(something)CC-3AA180 675809 10T72 LCCO 462 467 If not acetetene, anyone know what it is?? Thanks |
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Grant Erwin wrote:
It isn't so much the stampings as the fitting. Does your acetylene regulator thread into it? If so, it is very likely an acetylene tank, since the only other tanks I know of with that fitting are propane. - GWE And if the valve stem is just a little square shank with no knob, it's almost certainly an acetylene tank. wrote: I ran across a tank the other day that I THINK is an acetelene tank - one of the little portable jobs. What numbers should be stamped in the top of the tank if it is an acetelene tank? it is 7.5" X 24" to the base of the valve and weighs 33 lb empty. has markings(something)CC-3AA180 675809 10T72 LCCO 462 467 If not acetetene, anyone know what it is?? Thanks |
#4
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"Jim Stewart" wrote in message ... Grant Erwin wrote: It isn't so much the stampings as the fitting. Does your acetylene regulator thread into it? If so, it is very likely an acetylene tank, since the only other tanks I know of with that fitting are propane. - GWE not always, if the tank is a "B" cylinder, most acetylene regulators wont fit without an adaptor like this: http://www.arizonatools.com/catalog/detail/16006/ The "B" cylinder holds 40 cu. ft. They look like this. http://store.weldingdepot.com/cgi/we...ml?id=3D6nV5uX good luck, walt |
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On Wed, 25 May 2005 22:17:12 -0400, "wallster"
wrote: "Jim Stewart" wrote in message ... Grant Erwin wrote: It isn't so much the stampings as the fitting. Does your acetylene regulator thread into it? If so, it is very likely an acetylene tank, since the only other tanks I know of with that fitting are propane. - GWE not always, if the tank is a "B" cylinder, most acetylene regulators wont fit without an adaptor like this: http://www.arizonatools.com/catalog/detail/16006/ The "B" cylinder holds 40 cu. ft. They look like this. http://store.weldingdepot.com/cgi/we...ml?id=3D6nV5uX good luck, walt It has a knob on the valve. It is bigger than a "B" tank and was painted silver. I strongly suspect it is a CO2 tank. |
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On Wed, 25 May 2005 17:11:44 -0700, Grant Erwin
wrote: It isn't so much the stampings as the fitting. Does your acetylene regulator thread into it? If so, it is very likely an acetylene tank, since the only other tanks I know of with that fitting are propane. - GWE wrote: I ran across a tank the other day that I THINK is an acetelene tank - one of the little portable jobs. What numbers should be stamped in the top of the tank if it is an acetelene tank? it is 7.5" X 24" to the base of the valve and weighs 33 lb empty. has markings(something)CC-3AA180 675809 10T72 LCCO 462 467 If not acetetene, anyone know what it is?? Thanks Acetelene tanks have some sort of "matrix" in them and contain acetone - this should make the tank heavier and might dampen the "ring" of the empty tank? Left sit in the sun it developed a bit of pressure, and when I cracked the valve there was no odour - so it pretty well rules out acetelene, I would think. |
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wrote in message ... I ran across a tank the other day that I THINK is an acetelene tank - one of the little portable jobs. What numbers should be stamped in the top of the tank if it is an acetelene tank? it is 7.5" X 24" to the base of the valve and weighs 33 lb empty. has markings(something)CC-3AA180 675809 10T72 LCCO 462 467 If not acetetene, anyone know what it is?? Thanks I can't decipher the whole thing but it looks as if the last hydro test was done October 1972, also done two times before that (April 1967 and April 1962). Shawn |
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#9
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Acetelene tanks have some sort of "matrix" in them and contain
acetone - this should make the tank heavier and might dampen the "ring" of the empty tank? You're right. They're filled with a porous concrete and this is saturated with acetone, and the acetylene is dissolved into the acetone. Makes things safe at the pressures we have to store the stuff at. Free acetylene is dangerous above 15 psi. You sure wouldn't want to fill anything else with acetylene. Dan |
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wallster wrote:
"Jim Stewart" wrote in message ... Grant Erwin wrote: It isn't so much the stampings as the fitting. Does your acetylene regulator thread into it? If so, it is very likely an acetylene tank, since the only other tanks I know of with that fitting are propane. - GWE not always, if the tank is a "B" cylinder, most acetylene regulators wont fit without an adaptor like this: http://www.arizonatools.com/catalog/detail/16006/ The "B" cylinder holds 40 cu. ft. They look like this. http://store.weldingdepot.com/cgi/we...ml?id=3D6nV5uX Careful how you edit your posts. I did not write that. |
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"Jim Stewart" wrote in message Careful how you edit your posts. I did not write that. sorry Jim walt |
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What color is the tank?
If black, it's likely an acetylene tank, if silver a CO2 or other inert gas tank, and if green it's an oxygen tank. Then too, all of my acetylene tanks have a flat top and bottom due to the presence of an external shroud on the tank intended to shield the valve from physical damage. Harry C. |
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On 28 May 2005 08:02:04 -0700, jim rozen
wrote: In article .com, says... Jim Rozen posted: "do not sniff unknown gas bottles, that's bad policy" Jim, sniffing an unknown gas is a standard technique in analytical chemistry, No it's not. It may have been at one time, but this is no longer true. Nobody teaches this any more, and anyone who does this is foolish and will at some point pay the price for it. One friend of mine did this with hydrogen sulfide. Fortunately the bottle rolled way from him when he fell to the floor and he survived. Another co-worker said "what smells like garlic?" when he got a whiff of Arsine. Fortunately he only received some minor kidney damage from that incident. The usual rule for that is, if you detect an odor at all, you are in *serious* trouble. Anyone who picks up an unknown, used gas cylinder and deliberately whiffs the contents is playing a very, very dangerous game. Same with pipetting viruses by mouth. Jim Knowing a bit of the history of this tank, I KNEW it was welding related or beverage related This narrows it down to either oxygen, fuel, or sheilding gas for welding, or CO2 for beverage carbonation.. Knew it wasn't Oxygen - as O2 bottles have LH threads. No smell means not Acetelene, and not propane or MAPP. That leaves shielding gas or CO2, Argon, Helium, or a mix. My voice didn't get squeaky, so it's likely not helium, and none of the others are dangerous in small quantities. I'm pretty sure it was CO2 - and being as far out of date as the hydro-test appears to be on it, it will likely end up in the scrap bin. |
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#18
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#19
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This narrows it down to either oxygen, fuel, or sheilding gas for welding, or CO2 for beverage carbonation.. Knew it wasn't Oxygen - as O2 bottles have LH threads. the invalid, and use a net. Do oxygen bottles have LH threads there? Here ( Australia) they have a RH thread but acetylene and LPG/propane?butane gas bottles have the LH thread. The nut part of a union for these gases has a groove turned in the outside of it to show that it is a LH thread. Tom |
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Tom Miller wrote:
This narrows it down to either oxygen, fuel, or sheilding gas for welding, or CO2 for beverage carbonation.. Knew it wasn't Oxygen - as O2 bottles have LH threads. the invalid, and use a net. Do oxygen bottles have LH threads there? Here ( Australia) they have a RH thread but acetylene and LPG/propane?butane gas bottles have the LH thread. The nut part of a union for these gases has a groove turned in the outside of it to show that it is a LH thread. Tom Everything out in my shop is RH threads (O2, two varieties of shield gas) except for the fuel gasses, which are LH. I'm pretty sure that's the way it is everywhere.. John |
#21
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On Mon, 30 May 2005 20:58:39 -0400, JohnM wrote:
Tom Miller wrote: This narrows it down to either oxygen, fuel, or sheilding gas for welding, or CO2 for beverage carbonation.. Knew it wasn't Oxygen - as O2 bottles have LH threads. the invalid, and use a net. Do oxygen bottles have LH threads there? Here ( Australia) they have a RH thread but acetylene and LPG/propane?butane gas bottles have the LH thread. The nut part of a union for these gases has a groove turned in the outside of it to show that it is a LH thread. Tom Everything out in my shop is RH threads (O2, two varieties of shield gas) except for the fuel gasses, which are LH. I'm pretty sure that's the way it is everywhere.. John My mistake - |
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