I'm trying to figure out this whole air fittings thing. I know the difference between male and female flare fittings (eg MFL) and pipe fittings (NPT, MPT) but I'm having trouble with sizing.
If I go to buy say a short section of pipe to attach to a CO2 line, what size do I use?
I see 1/4" listed all the time, but I have no idea what that references, and I'd like to know. Ditto with thread pitch. And the flare angle; is it constant for the size of the fitting?
It seems that the conventions are different in the brewing world vs the welding world (in welding I see tanks measured in cu ft, in brewing it's lbs).
Also, I have tons of fittings laying around for air hoses for air tools. They all are 1/4", both flare and pipe. I also have quick disconnects for 1/4" both auto and industrial (one is slightly longer than the other IIRC). I'd like to use some of these with my CO2 system for the keezer, and I don't wanna go buy stuff only to have it prove incompatible. And I need to use the CO2 tank with other stuff.