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:

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.

The entire thing is is 8" long. The valve is 2 1/8"

The internals of the valve. At least the first part.

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.



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.