Shop Air

Vrabel

TOYAHOLIC
May 22, 2008
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Hewitt, NJ
Has anybody tried the new plastic piping for shop compressed air on a commercial level? how's the pricing? Going to help plumb a friends garage-6bays, 3 double deep. not sure to go plastic or black pipe.
 

cuminstrkmydmax

New member
Sep 10, 2008
223
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North East MD
What do you mean new plastic pipe?

Ive installed sch 80 pvc for air lines- sch 40 doesnt stand the pressure that alot of compressors can run.
I installed steel in my shop- but im a plumber by trade so i have all of the necessary cutting and threading machines sitting right there-
Personally- steel will last forever, wont break like plastic can as it gets older.
GOOD LUCK Steven
 

TeaBagger2006

Im a Garrett Nut Swinger
May 11, 2008
3,123
15
38
Bis ND
Why not coppe?r, I've worked on several fire houses and that's all we've run in the bays. But copper is pretty expensive rite now. I'm Not familiar with a plastic tubing to run compressed air
 

x MadMAX DIESEL

<<<< No Horsepower
Dec 30, 2008
7,535
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Lexington, Ky
I've seen pvc used before. Not sure if it was sch 40 or 80... All I know is that it was white not grey, or black. Personnally I thought it was a dumbass idea, I'm not a plumber so idk if it is safe or not. Just common sense tells me to use something abit stronger.
 

cuminstrkmydmax

New member
Sep 10, 2008
223
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North East MD
All of these sort of new products that come out- its hard to keep up with them all:confused:
One thing to think about with using a product like that- in 5 years if something breaks or he gets a leak, then what? If he uses steel or pvc any local hardware store will have what you need to fix it.
And white pvc is sch 40- rated for less than 200 psi- and it gets brittle over time if exposed to any sunlight- bad idea when dealing with compressed air!. Grey pvc is sch. 80 and is rated 600 psi IIRC- and and is the only plastic pipe i would recommend to use.
Pex is rated for 200 psi as well- but it wont burst becoming shrapnel like pvc can-

GOOD LUCK Steven
 

custom8726

Active member
Feb 25, 2008
2,784
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Upstate N.Y
we used Pex tubing in our shop, working fine for now, the plumbing shop reccommended it over black pipe.

Never seen it used for air lines, but that stuff is pretty impressive for the cost VS copper... I have a decent amount kicking around , maybe I will give it a try in the shop.
 

durallymax

New member
Apr 26, 2008
2,756
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Under The Hood
except for the fact that its a PITA to uncoil, but no sweating fittings really saves time.


heres a pic of our shop you can see it in. Its run right where the plywood meets the acoustisteel

DSCN0362.jpg
 

McRat

Diesel Hotrodder
Aug 2, 2006
11,249
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Norco CA
www.mcratracing.com
Once you get used to copper, it's pretty fast to install. I've always used copper, and haven't had a failure in 18 years, 12 years at our current location.

Plastic has improved a lot though. It used to get brittle as time went on.

Steel can have issues with internal corrosion, and I'd stay away from it. Not because it will fail, but because you'll have to replace filters more, and perhaps even damage some kinds of equipment.
 

BlkMax

Member
Sep 1, 2008
743
4
18
Wasilla, AK
I have seen white PVC blow off the wall after time and damage a vehicle in a body shop. That failure was in the fitting, not the pipe, a tee broke. Luckily no one was hurt.

Be careful with the temperature versus pressure rating. As the temperature goes over 68* F the pressure rating really drops off quick, and the air temp coming from the compressor discharge can get too hot to touch on some compressors.

Good Luck!
 

rcr1978

Active member
Apr 1, 2007
790
26
28
Spring Creek, NV
I've worked in the compressor field for a while now and I know I would'nt touch any pvc at all. We like copper for eaze of the install and no corosion but it's expensive, iron works but it's a pain in the ass to put in compaired to others. The pex sounds interesting fast easy definately better than pvc but I've never seen it used whats it's pressure rating?.
 

Jetty LBZ

work in progress
Jan 24, 2011
404
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middle TN
i work construction on pipe line and the pressure rating on new pipe there coming out with is pretty high but anything under 2" pipe will brake if you just bump into it!
 

jimdmax

New member
Feb 18, 2007
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Garden Prairie IL.
No that was a pic back from when it was clean. Im getting behind on keeping it clean now though. Its really hard to in the winter

heres a pic of it this morning

IMAG0038.jpg

Vin looking at the first pic i thought you guys don't work in there.That Or i do a really bad job at keeping mine clean, Thanks for that second pic i feel better. I need to Replace my lines and i just used PEX tubing on a floor for heat and that stuff is tough Maybe that would work. What did you guys run 3/4''?
 

durallymax

New member
Apr 26, 2008
2,756
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Under The Hood
We used 1" hydro plumb pex fastened every 16". The stuffs a PITA to work with but it is tough.

To uncoil it and hold it straightish while we fastened it we slipped it through a 6' piece of 1.5" PVC. This made the job easier. But we are amatuers im sure a pro out there has a better way. Only other time I dealt with Pex was doing the infloor heat in our calf barn, and swore off it after that, we left it to the pros for the shop floor.

http://www.h-a-s.com/literature/Hydro-Pex/Hydro-Plumb Plus PEX Specification.pdf

Our drops are 1/2" Black pipe.

IMAG0039.jpg
 
Dec 2, 2006
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TN
Pex is nice stuff! That's all my plumber uses now.. In our latest project, we plumbed 10K sq ft with it. Not a problem yet..