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Old 04-01-2013, 12:43 AM   #1
Mar 2013
Posts: 6

I have a used compressed air tank and was wondering if it would be possible to fill it with CO2 for kegging. It is a 25 lb tank so it would be awesome to not have to worry about it for months. Thoughts?

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Old 04-01-2013, 12:55 AM   #2
processhead's Avatar
Oct 2007
Posts: 791
Liked 131 Times on 102 Posts

Compressed gas companies are usually very particular about using the correct bottle for a specific gas type.

Different gas bottles have various fitting sizes to make it hard to use the wrong gas for a particular application.

I don't think you are likely to get it filled with anything other than compressed air.
How hard can it be?

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Old 04-01-2013, 12:28 PM   #3
webby45wr's Avatar
May 2012
Mifflinburg, PA
Posts: 161
Liked 13 Times on 12 Posts

Yeah, this doesn't sound safe to me. Compressed air tanks are usually pretty thin. CO2 tanks are thicker and meant to withstand over 1000 psi.
Buggy Top Brewing Company

On Deck: Blueberry Blonde; Peanut Butter Stout; Bacon Beer
Bottled: Winter Warmer; East India Porter; Tripel; Smoked Cranberry Stout; Leftover Pale Ale;
Kegged: Porter; Bock; Kitchen Sink (Belgian Pale Ale)

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Old 04-01-2013, 07:08 PM   #4
MidTNJasonF's Avatar
Jan 2013
Smyrna, Tennessee
Posts: 449
Liked 69 Times on 49 Posts

Typical air tank will hold ~125psi, probably has a safety valve somewhere around 150psi. CO2 tanks hold pressures many times that.
Will ride for beer!

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