Whats the nornal way to connect up 1/8" OD copper steam pipes (actually compressed air in this case)? I have made a union and nut, but I am not sure whether I should solder a ring onto the pipe, attempt a compression fitting, or make a nipple into which the 1/8" pipe can be soldered outside the nut. I am thinking the soldered brass ring, turned true, might be tidiest.
Steve