Making a portable air tank from a propane tank

[kriegmeister3000]

I would put a gas gauge on it to know the pressure I have.

[spongbob202]

Yes, you can form moisture in the tank, but i would probably add a dryer between the tank and the quick coupler. and yes, i do also recommend removing the valve, and probably painting on the tank AIR ONLY just as an extra safety precaution.

[EnvyInc]

This makes me uncomfortable to watch. It doesn't take much more effort or expense to pull the propane valve and replace it with a proper air regulator valve with a pressure gauge. Also, when you pull the propane valve, clean the tank with soapy water to remove any chemical residue and coat the inside of the tank with a rust preventative such as POR15. Compressed air brings condensation (water) which will rust the inside of the tank, eventually causing a failure. An exploding metal tank can kill.

[Mac566]

It works, but yes you can fill that tank with propane, many of distributors don't even look at the date on the bottles, and if somebody were to remove your fitting, now you have a tank that is not purged, witch could be refilled with propane, that could explode because it had air in it, you should remove the old tap and put anything else in its place, that way you or anyone else knows its no longer for propane

[motorheadisgod]

nice tank! an acetylene regulator fitting will work as well.