Odd CO2 tank

[Pain For Pleasure]

Well, looking through my basement, I found these old CO2 tanks that I thought would be sweet for my future pump gun. My dad got them from my Grandpa's garage after he passed away. The only thing is, they aren't made for paintball. Pics:
http://www.hunt101.com/img/201441.JPG (http://www.hunt101.com/?p=201441&c=564&z=1)
OD: 1 5/8"
Thickness: 3/32"
I found this one cut like this. There are a total of I think 5 cylinders. They have slight variations.
http://www.hunt101.com/img/201453.JPG (http://www.hunt101.com/?p=201453&c=564&z=1)
The entire thing is is 8" long. The valve is 2 1/8"
http://www.hunt101.com/img/201458.JPG (http://www.hunt101.com/?p=201458&c=564&z=1)
The internals of the valve. At least the first part.
http://www.hunt101.com/img/201460.JPG (http://www.hunt101.com/?p=201460&c=564&z=1)
The valve without the top part.

The cylinders have markings on the hex part of the valve. I will list each side and what i make of it.

C-O-TWO (means it is meant for CO2 use)
3000 LB. TEST (not quite sure)
19 1/2 ozs. (A ninteen and a half ounce tank? This small?)
Pat. Pending (duh)
Left hand thread (on the part where the cap screws on)
9 51 (Year it was made. Yeah its that old.)

On the top cap part, it says: Total wt. 1.10.20

I don't know what these things were made for. My dad and I thought welding probably. I'm not even sure how the valve works. I wondered if I could somhow make these useable for paintball. I wouldn't be able to put a normal pin valve on because I think the necks are different. Any help would be much appreciated, even if you can only identify what it is.

[lord1234]

if they were made in 51...u need to hydro them before use:)

[SlartyBartFast]

19 1/2 ozs. (A ninteen and a half ounce tank? This small?)


Sure that ozs and not grams?

[Pain For Pleasure]

Lord- CO2 tanks under 2" diameter don't need hydro's ;) But yeah that is a good idea lol.

Bart- It is stamped "ozs." That to me means ounces. I have no clue what these things were even made for. I mean the 19.5 ounces doesn't make sense to me, but its what it says.

[warbeak2099]

How are you planning on getting them filled?

[Pain For Pleasure]

Well I wasn't planning on getting them up to 19 ounces, but 1-2 was all I expected. I could easily fill them off of a 20oz tank. I wanted to put some sort of pin valve on them that would work in conjunction with an ASA. That also reminds me, I need to figure out how many ounces they can hold.

[NukeGoose]

Don't CO2 tanks normally fill with liquid to 2/3 of the tank's internal volume or something? You might be able to try estimate the amount that way, mebbe take off a bit to be on the safe side.

[MarkM]

Sorry to rain on anyones parade but regardless of testing regimes...ie being exempt or not they are way beyond their design life so they are just paper weights now.

[Pain For Pleasure]

Sorry to rain on anyones parade but regardless of testing regimes...ie being exempt or not they are way beyond their design life so they are just paper weights now. NEVER!

But besides being over 50 years old, what is the cut off date?
Also if anyone knows what they might have been used for it would be appreciated.

[GT]

NEVER!

But besides being over 50 years old, what is the cut off date?
Also if anyone knows what they might have been used for it would be appreciated.

10 years? dunno need to check with DOT

[gc82000]

8 in ches long and 2 inche in diameter.
target paractice anyone??

[AGDlover]

How are you planning on getting them filled?


lol hook em up to a CO2 filler and just snap the lever that fills it real quick

[xXHavokXx]

8 in ches long and 2 inche in diameter.
=

Thats a familiar measurement for me........






im sorry i had to.

[Destructo6]

Also if anyone knows what they might have been used for it would be appreciated.
Probably for inflating a life raft.

http://www.tpub.com/content/aviation/14218/img/14218_136_1.jpg

I've seen similar things for life vests (UDT type), but that's way too big.

[SlartyBartFast]

lol hook em up to a CO2 filler and just snap the lever that fills it real quick

Ahh. The wonderful respect for safety with pressure vessels and gasses as shown by paintballers all over. :eek:

[Thordic]

Metal made in 1950 is the same as metal made today.

If they havn't been used, which they don't seem to have been, then it shouldn't make much of a difference, honestly.

Unless metal rusts, it doesn't really degrade in quality no matter how old it is.

I doubt I'd fill one, the logical part of my brain says they should still work.

[SlartyBartFast]

Metal made in 1950 is the same as metal made today.

If it was unused and stored correctly, then yes.

Otherwise you'd be wrong. Many properties of metals change under use and exposure.

[Pain For Pleasure]

I'm thinking the life raft thing is probably the most logical thing. Someone on another forum where I posted this suggested that too. My Grandpa was in WWII, so I think he might have gotten them then. Mabey the date was a use before date.

And they are still full. After looking more closely, I can see they aren't peirced yet :eek: . I still wish I could put some sort of on/off valve on them and use them. Mabey brass pipe fittings, though I don't know what they are rated for, and by then I don't know if it is worth it.

[Thordic]

Ahh see thats a different story. If they have been full of CO2 for 50 years, I'd definitely want to dispose of them.

[Destructo6]

I can see they aren't peirced yet
If they are of the pierce to use variety, they're definately not intended to be refilled. Just consider them oversized 12grams or the PMI Spare Air deals.

[eddie885221]

i say that instead of trying to use them u sell them to a museum or sumthin because anything that old that may have been used in WWII is worth money, dont butcher them

:shooting: :dance:

[Pickle]

Since this thread seems to be going the way of grandpa and WWII... What did he do in the war? That might help. Assuming of course this is where they cam from. Also, what did he do after the war? THere is a wealth of knowledge here on Ao that just needs tapping.

[Pain For Pleasure]

Since this thread seems to be going the way of grandpa and WWII... What did he do in the war? That might help. Assuming of course this is where they cam from. Also, what did he do after the war? THere is a wealth of knowledge here on Ao that just needs tapping.Well, if I can remember correctly (he died when I was 2), he was an airplane mechanic. I'm not sure wher he was stationed though. He definitely didn't see any action. He was a general handyman type of guy. I have a garage and basement full of tools and machines we inherited. Had a basement full of stuff he probably wouldn't use, but had potential for being turned into things. Makes me wonder if he didn't pick them up somwhere for use in something he was going to make. Don't know if that helps.