Co2 tank

[shibao123]

Any one can help giving information how much CO2 gas can fill maximum in 5 gallon tank by weight ? I just filled in gas store only get 1 kilogram weight.

 

[shibao123]

Sorry I mean 5 lb co2 tank

 

[Rbeckett]

LOok at your filled pressure and realize that it is telling you the temp first. The best way is to do an immersion test but most folks do not have a means for doing that. The gas place willl fill a cylinder as much as they can legally. They dont want to under or over fill a bottle for various reasons. Safety being the top of the list/ You can rest assured that 2.2 Lbs of liquid co2 is a good bit and probably all they can legally pt in that size cylinder. It's mpt much of an answer but it;s the best I got. And remember to keep your owners papers on that cylinder as long as you have it. That just avoids hassles later on, trust me..

Wheelchair Bob

 

[shibao123]

Thanks Rbeckett, I think find bigger tank 20 lb so can save more gas. But there only steel tank available in store here ( indonesia) . I am worry using steel one as corrosive steel cause unsafety or contaminate the gas and harmfull to health, maybe this silly question.

 

[Huff360]

Bob is a little off on that answer. A 5 pound CO2 tank holds 5 pounds of liquid.

Your tank should have a Tare Weight stamped on it. You can place the tank on a scale and subtract the Tare Weight from the reading. That will tell you how much CO2 is in the tank.

A CO2 cylinder is filled to 68% of the water weight capacity of the tank. A 5 pound CO2 cylinder holds 3.4 liters of water which weighs 7.4 pounds.

7.4 * 68% = 5 pounds.

The 32% "empty" space is there to allow for expansion due to temperature.


If your gas supplier charged you for a 5 pound fill, and only put 2.2 pounds in, then they shorted you.

Do not be concerned with the steel tank. They are perfectly safe to use.