114ci co2 tank

[bofh]

How about known scientific fact that under pressure, especially extreme pressure, the vessel holding said pressure expands? And that everything [save water] contracts when frozen/chilled?

Actually, this is a myth that was dis-credited by the tinker's guild a while back.

Your theory requires the Alloy shell and the fiber casing to expand/contract at different rates, and that it impacts the safety of the tank. Not just that the Alloy contracts/expands.

There's actually no proof to back up that it is a danger, and none from the manufacturers.

[trains are bad]

From the Man himself, in the thread I belive chronobreak was talking about.

Q: CAN I FILL IT WITH CO2 IF NITROGEN IS NOT AVAILABLE?

A: Yes, but you will have to adjust your velocity down 30-40 fps.

[teufelhunden]

Actually, this is a myth that was dis-credited by the tinker's guild a while back.

Your theory requires the Alloy shell and the fiber casing to expand/contract at different rates, and that it impacts the safety of the tank. Not just that the Alloy contracts/expands.

There's actually no proof to back up that it is a danger, and none from the manufacturers.

Damnit.

[bofh]

But I'd imagine that tank manufacturers would love you buy new tanks if fill one once with CO2.

[Sandman76]

First post yes, but this issue actually inspired me to register as a user here.

Expansion and contraction of dis-similar materials is a fact. The aluminum liner of a fiber tank will contract significantly more than the fibre shell surrounding it when frozen in order to fill with CO2. It may not imact the integrety of the tank the first time or even 20 times. But over time, with the aluminum casing inside the tank contracting more than the fiber shell, eventually the fiber shell and aluminum casing will seperate. Not on a major scale, but enuf to cause integrety issues IMO. The aluminum casing is to have an airtight seal for HPA, and the fiber wrap is to give that casing strength in order that the casing doesn't rupture. Personally I think you are playing with fire on this one. You are almost asking to cause integrety problems in your fiber wrapped tanks. Its a matter of temperature causing different contraction rates of the materials, not pressure causing swelling. Yes this is a theory and I have no real world scientific proof of this happening, but the theory sounds good enuf to me I don't want to risk a pressure vessel rupture.

And if you want to experiment, I'm sure there is a great safety factor in your 3k bottle that you may be able to boost the pressure well beyond 3k. Do you want to do it? For safety reasons no you do not. The bottle is made for 3k, 4k, 4.5k, 5k PSI etc made for AIR, use it as such, don't push the limits and don't put a different propellant in it than it was designed for, FOR SAFETY.

SM

[trains are bad]

But over time, with the aluminum casing inside the tank contracting more than the fiber shell,

SAYS WHO?

GAWD!

/napolean dynamite

Ever think that perhaps the fiber is wrapped on the aluminum with enough tension and elasticity that even if the aluminum does shrink it's not a problem? We're talking a few thousanths of a inch here. Thermal contraction. Plus this is a tank designed to work at 3000+ and you are putting a CO2 pin valve and 1800psi burst disc in it.

I called luxfer and asked them and they said the bottles could be used for CO2 as long as the working pressure was not exceeded. They didn't even know what I was talking about when I spoke of cold temperatures. Let it go already.

[mark_1791]

I do know people who have run CO2 in maxflows, reg and all, but this requires special filling equipment and is not worth it IMO.

That is so retarded! Why would you spend $300+ on a high quality NITRO tank and destroy it by putting CO2 in it? WHY???

[Enemy]

hmm could have sworn tom said somthing about it being unwise but i think that was long ago when nitro tanks first hit the market!! shamless plug i have a 114 ci tank for sale hit me up with a pm if interested!!

[bofh]

Yes this is a theory and I have no real world scientific proof of this happening, but the theory sounds good enuf to me I don't want to risk a pressure vessel rupture.

If it doesn't feel good to you, don't do it.

In fact, you know tha HPA and co2 are dangerous things, why not try that new electric only marker.

[joez]

To answer the posters orriginal question, it holds between 57 and 59 ounces of CO2, that was as close as we could figure it.

If you get the tank cold enough, you can get it to take over 90 oz of liquid, but i highly recomend NOT doing that.