Is it possible to attach the new flexible air line to a black pipe line system? I need to extend my air supply and was thinking about using this new air line system. I have 3/4" black pipe now.
If the flexible air line system has a male pipe thread adapter then get one of those. Purchase a black pipe male thread adapter as well, and then join the two systems together with a coupling.
There are a few hundred flexible tubing systems out there can you link to what you are intending to use? That said I've yet to run into any system that doesn't have some kind of a tube to pipe thread adapter.