On Thu, 17 Apr 2008 11:03:15 -0800, Jim Stewart
wrote:

Does anyone see any problem with using generic
air line quick-disconnect fittings between a
TIG welder and the torch?

I suppose it's possible you could contaminate your shielding gas if
the coupler had been used on a lubricated air line or was otherwise
fouled. Other than that, I can't imagine it would cause any problems.

If you want to do this to switch torches, another option is the
Y-valves with inert gas fittings made by Western.

http://www.westernenterprises.com/en.../PDFS/wi17.pdf

--
Ned Simmons