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

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

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

"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

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.

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.

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

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

In article ,
says...

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.

1) it is not acetylene.

2) do not sniff unknown gas bottles, that's bad policy.

Jim


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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.

"Jim Stewart" wrote in message
Careful how you edit your posts. I did not write that.

sorry Jim

walt

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.

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, although there is a specific safety procedure employed in
doing so. That is, one wave a cupped hand through the excaping gas,
then bring that hand within range your nose and never deeply inhale
(our sense of smell is very acute with only a highly diluted whiff).
Acetylene, sulfur dioxide, hydrogen sulfide, ammonia, chlorine, cyanide
(hydrogen cyanide) and other gasses with distinctive odors are readily
identified using this method. Unfortunately, many fuel gases have no
distinctive odor (hydrogen, butane, methane, propane, etc.).

In addition to analytical chemists, ordinary people working with either
toxic or explosive gas are taught this technique as part of their
training in the fundamentals, so that they can identify the smell of
toxic and some explosive gasses when entering an enclosed structure.
For example, most of us here already are familiar with the odor of
acetylene, but how many without sniff training would associate the
rather pleasant odor of cyanide (it smells exactly like roasting
almonds) with a possibly lethal building atmosphere? Realize that most
of our population does not recognize the odor of roasting almonds,
simply because many have never roasted almonds. :-)

Harry C.



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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


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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.

In article ,
says...

Knowing a bit of the history of this tank, I KNEW it was welding
related or beverage related

That's great if you really knew for certainty where it came
from and who was using it, and what it was being used for.

The question at hand is, are you certain enough to bet your
life on it?

Jim


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==================================================

On Sat, 28 May 2005 23:15:57 -0400,
wrote:


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.

Don't be too sure - As long as it isn't rusty, or wasn't dropped too
many times, it's worth a try. Or just turn it in as a straight
exchange and let them worry about the hydro. I bought an original
military 2.5# CO2 extinguisher that was last tested... Let me go grab
it.

Army-Navy CO2 Fire Extinguisher Model E-2 1/2-B
B-2, C-2 Serial #F-491155
Randolph Industries, Chicago 11 Illinois
JAN E 468 ICC 3AA1800
5 47 D A LL11412
NON SHAT SPUN
(Recerts:) 5 53, 8D^64, 8MF70, 4P85
(Gee, guess it's a bit overdue again...)

The guys at Pioneer Fire were going "Military, Spun tank, that'll
fail." "It's passed before, give it a try." Passed with flying
colors (hence the 4P85 recert and refill) - popped off the belly band,
painted it red, put the belly band back on, and put it on my matching
vintage generator.

I've seen a LOT of "antique" bottles in daily use - go look at the
first entry on the long list of recert dates on some of the ones out
in the bins, and you'll get a surprise.

-- Bruce --

--
Bruce L. Bergman, Woodland Hills (Los Angeles) CA - Desktop
Electrician for Westend Electric - CA726700
5737 Kanan Rd. #359, Agoura CA 91301 (818) 889-9545
Spamtrapped address: Remove the python and the invalid, and use a net.

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

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

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 -