CO2 tank to air compressor tank?

[granitestatedestroyer]

Is there a fitting to turn use a 20lb aluminum CO2 tank into a tank for an air compressor?

I have three 20lb aluminum CO2 cylinders, 2 of which are empty.

I would also like to put a 12v compressor in my enclosed trailer for some on board air.

Can I knock off the CO2 valve and swap to a T fitting of some sort to use one of the emptys?

Maybe drill and tap if I need to?

Just buy a damn compressor tank?

 

[[486]]

way way overkill, co2 is 800 psi operating pressure and those tanks are a reasonably easy sell at $100 around here
use an old 20lb propane tank instead
you can wash the stink out with a couple rinses of a half gallon of gasoline

 

[Safe Dude]

Gas supply house should have what your looking for

 

[kf4zht]

Waste of a CO2 tank. Plus getting a mobile tank with multiple ports is going to be easier, otherwise you have a pile of t fittings.

Or just get a co2 reg and use that as your air source

 

[granitestatedestroyer]

way way overkill, co2 is 800 psi operating pressure and those tanks are a reasonably easy sell at $100 around here
use an old 20lb propane tank instead
you can wash the stink out with a couple rinses of a half gallon of gasoline

Yes, overkill for sure, just trying to use what I have on hand.

Waste of a CO2 tank. Plus getting a mobile tank with multiple ports is going to be easier, otherwise you have a pile of t fittings.

Or just get a co2 reg and use that as your air source

That's what I'm setting up first because it's what I already have. I would rather have regular air though. I won't have to worry about getting it refilled if I run out or if I'm a dummy and leave the valve open. Plus tires since seem to hold CO2 very well.

 

[RunningProblem]

Sell the CO2 tanks and buy an air compressor tank. You have parts people will pay money for so you can buy what you want. You could also carry a 20 pound CO2 tank with a 150 PSI regulator as your air tank.

 

[kf4zht]

That's what I'm setting up first because it's what I already have. I would rather have regular air though. I won't have to worry about getting it refilled if I run out or if I'm a dummy and leave the valve open. Plus tires since seem to hold CO2 very well.

Any plumbing project - water, air, etc. All of them the fittings add up quicker than the tank.

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If those tanks are in any type of trade-in shape you can get $75-100 for them. If you wanted to make it work you are going to need at least:

• Adapter for CO2 tank to NPT
• Bung for pressure switch (or a Tee)
• Outlet port (or a tee)
• Pressure gauge port (or another Tee)

So you can either sell one of your and get the right thing, even money or you can use what you have, plus spend $20-40 on fittings to make it work and end up with some hack ass goofy setup with 2-3x as many leak points.

I'm all about use what you got, but sometimes the best way to use it is let someone else pay you money and do it right the first time.