Compressed Air Piping
 

Hi everyone. Looking for advice on the best air piping to use for garage compressed air system. I would like to conceal in the walls and above the ceiling for the installation method. What is everyone using?
Thanks!
Bob

I used black iron pipe throughout the garage also behind the walls. I used T111 exterior siding inside held on with sheet rock screws. I collect signs so that's why the siding. The screws so you can get in there if you need to. It's been 12 years & no problems. I also ran the electrical behind but mounted it about chest high in case something was stacked on the floor....Joe

Black iron because it acts like a cooling agent, where plastic, or rubber insulates. I had a diagram I posted before that shows the proper routing and drops, but I can't find it now.

My "Rapid-Air" Plastic system has Constant issues, Sad I went this route now.
"MAXLINE" system.

I went with copper lines.

Black iron or type L copper pipe.

I ran all the piping high & when it stubs out at the wall each one has a ball valve shut off & also a drain about a foot below the tee coming out of the wall....Joe

What he said.

----Not kosher, but when I built my cave we buried the lines in the walls. My suggestion is that if you have anything behind a wall be sure to triple test the system. I now have to shut off mine at night, which isn't too big a deal. I have so much crap in front of the walls that I just can't imagine trying to fix the minor leak I have. If I forget it takes several hours to blead down....Bill S

I used the Rapid Air Rapid Pipe (aluminum pipe) about 5 years ago. I'm really happy with the product. I myself would be a bit skeptical about being sandwiched in the wall in the event of a leak or failure.

https://www.rapidairproducts.com/sho...-ft-master-kit

Nonetheless, the fittings were high quality and the system it easily added on to.

Tim