options for running hard lines

basically i was looking for a line that would hold itself up. ill have to look around and see if i can dig up some copper line. i just wasnt sure about the push in fittings actually working. id rather choke on a tooth pick than use compression fittings. those things own me and i can never get them to seal properly. i work on aircraft and i could get Ti lines but i bet it would suck sweaty donkey balls trying to bend them.

what do u mean hold itself up? any hardline needs to be secured somehow to prevent vibration and fatigue

we ran the copperline on my truck then chrome plated it, we used ptc fittings and tested it out and it worked fine

yes your truck is the one i was thinking about. i just couldnt remember you screen name. thanks for the reply.

I ran copper line and compression fittings. No complaints other than a couple of the ones I got bottomed out too early and didn't seal so I had to redo the line and get new fittings.

It was easy to position over the front suspension, and it stays in place better than a plastic line would. Its more work, but I like it. No different than running brake lines IMO. You can get flare fittings too that seal pretty well.

if you are going to put it hidden inside the frame rail i wouldn't waste the money on hardline... if you can't see it, it all holds air the same... just run the normal dot plastic line and save yourself a little money and just do hardline from the frame to the bags and tank

ya i see what your saying but i dont want rubber airline snaking in and out of a frame. IF i do hard line it'll be all done.

Well, if ya want my .02 check out the following pic. All hard copper line except for the curved portions (soft copper for a/c units). All 1/2" with soldered connections. Threadlock at valves and tank. Have left truck aired up for weeks at a time with no leakdown



Yes, I know - forward facing is better