Club Cobra Gas - N Exhaust  

Go Back   Club Cobra > General Discussion > Lounge

Keith Craft Racing
Nevada Classics
Keith Craft Racing
Main Menu
Module Jump:
Nevada Classics
Nevada Classics
Keith Craft Racing
MMG Superformance
Advertise at CC
Banner Ad Rates
MMG Superformance
MMG Superformance
MMG Superformance
March 2024
S M T W T F S
          1 2
3 4 5 6 7 8 9
10 11 12 13 14 15 16
17 18 19 20 21 22 23
24 25 26 27 28 29 30
31            
  #1 (permalink)  
Old 03-08-2012, 06:24 PM
CC Member
Visit my Photo Gallery

 
Join Date: Aug 2010
Location: San Antonio Valley Ca, ca
Cobra Make, Engine:
Posts: 1,275
Not Ranked     
Default PVC Pipe for air lines?

Anybody ever use PVC pipe for air lines across a shop? I need to run about 80-100 feet across the shop and am looking for a reasonably cost effective way of doing it. I'm tired of rolling out hoses and tripping over them all day. I run about 175 psi max.
Reply With Quote
  #2 (permalink)  
Old 03-08-2012, 06:40 PM
CC Member
Visit my Photo Gallery

 
Join Date: May 2010
Location: Houston, tx
Cobra Make, Engine: 2004 Kirkham 427 S/C, Shelby 496C.I.
Posts: 322
Not Ranked     
Default

Not unless you want to kill yourself. They aren't made for air pressure, only liquid and not the type of pressures that you see in a compressed air system. Check garagejournal.com for extensive discussions on this very subject. Only use black pipe, heavy wall copper pipe or pex rated for air, rated at 300 PSI burst pressure. Some will say yes, but your wife is worth more than a few dollars for cheap air lines.
Reply With Quote
  #3 (permalink)  
Old 03-08-2012, 06:57 PM
CC Member
Visit my Photo Gallery

 
Join Date: Aug 2010
Location: San Antonio Valley Ca, ca
Cobra Make, Engine:
Posts: 1,275
Not Ranked     
Default

Quote:
Originally Posted by Racer_X View Post
Not unless you want to kill yourself. Some will say yes, but your wife is worth more than a few dollars for cheap air lines.
Thanks for the info. I'm gonna guess that "wife" was a typo.
Reply With Quote
  #4 (permalink)  
Old 03-08-2012, 07:00 PM
CC Member
Visit my Photo Gallery

 
Join Date: May 2010
Location: Houston, tx
Cobra Make, Engine: 2004 Kirkham 427 S/C, Shelby 496C.I.
Posts: 322
Not Ranked     
Default

Quote:
Originally Posted by redmt View Post
Thanks for the info. I'm gonna guess that "wife" was a typo.
Yeah, sent it from my phone. stupid autocorrect . Meant to type life.
Although if married, maybe the wife would appreciate the thought.
Reply With Quote
  #5 (permalink)  
Old 03-09-2012, 06:23 PM
PaulProe's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: May 2006
Location: Manchester, MO
Cobra Make, Engine: Hurricane - FE
Posts: 617
Not Ranked     
Default Boom

When PVC fails (and it will under air pressure) it is a catastrophic failure. Little shards everywhere. The stuff is bad news. Guys will say they've never had a problem, but it is just a matter of time.

Look into the aluminum tube type systems that are popular now. The tube is coated with blue epoxy, makes it real pretty.

Next choice would be sweated copper lines.

Last choice is black iron pipe. You'll never get it to seal 100% so it is problematic.

There is also a system available that uses nylon tubing to connect from fitting to fitting, but I don't have any experience with it.

Paul
__________________
www.65shlb.com
www.prdcrrct.com
Reply With Quote
  #6 (permalink)  
Old 03-12-2012, 11:37 AM
4RE KLR's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Feb 2000
Location: Neverland, TX
Cobra Make, Engine:
Posts: 7,460
Not Ranked     
Default

With that high of pressure I would not use PCV. I agree that some use it and have never had problems but most of the time they do not use it above 50 lbs or so. I think that is even too high.

Yes there is many different types of PVC and some would work better than others, but I would not use it at all for that high of pressure. You would be asking for trouble...in my humble opinion.

I would use Pipe for this specification. Yes black pipe will leak down. However, you can get a seal on it but it is very hard to do. But do you leave your air compressor on all the time or only when needed. If you turn it off when not in use, then pipe would be the way to go.

_____________
Ferrari Killer
Steve

Must Sell Right Now

.
Reply With Quote
  #7 (permalink)  
Old 03-12-2012, 12:15 PM
Senile Club Cobra Member
Visit my Photo Gallery

 
Join Date: Feb 2001
Location: Buffalo, NY USA, NY
Cobra Make, Engine: Time Machines Motorsports LLC- Superformance Dealer
Posts: 4,482
Not Ranked     
Default

Black iron will seal after some time if the ere is a little moisture in the line, they will rust and seal. My old shop it took about 9 months for the lines to hold pressure overnight.
__________________
"I'm high all right, but on the real thing....powerful gasoline and a clean windshield..."

http://www.timemachinesauto.com/
Reply With Quote
  #8 (permalink)  
Old 03-12-2012, 01:03 PM
FWB's Avatar
FWB FWB is offline
CC Member
Visit my Photo Gallery

 
Join Date: Jan 2008
Location: Williamsport, PA
Cobra Make, Engine: Kellison Stallion 468 FE
Posts: 2,703
Not Ranked     
Default

i use black pipe myself......copper is ok, but i run high line pressure, copper sweat joints scare me at 150-175 psi
__________________
Fred B
Reply With Quote
  #9 (permalink)  
Old 03-12-2012, 01:47 PM
dallas_'s Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Sep 2009
Location: Dallas, tx
Cobra Make, Engine: FFR track car, SL-C track car
Posts: 1,262
Not Ranked     
Default

Another option is 1/2" air hose. Reasonably priced, easy to route and made for that use.
Reply With Quote
  #10 (permalink)  
Old 03-12-2012, 03:47 PM
CC Member
Visit my Photo Gallery

 
Join Date: Aug 2010
Location: San Antonio Valley Ca, ca
Cobra Make, Engine:
Posts: 1,275
Not Ranked     
Default

yep, going with the simplest, cheapest way out for now. Just going to run a 1/2" line through the overhead.
Reply With Quote
  #11 (permalink)  
Old 03-13-2012, 11:03 AM
DAVID GAGNARD's Avatar
Senior Club Cobra Member
Visit my Photo Gallery

 
Join Date: Jan 1999
Location: MARKSVILLE,LA.,,
Posts: 3,235
Not Ranked     
Default

[QUOTEWhen PVC fails (and it will under air pressure) it is a catastrophic failure. Little shards everywhere. The stuff is bad news. Guys will say they've never had a problem, but it is just a matter of time.
][/quote]
I'm not saying to use PVC, just telling you of my expirence with it...Built my shop (40x50) in the mid 90's,was out of money by the time it was done, so I ran about 200' of air line thru it,used one inch PVC,(BTW:rating says 300 psi on it) it was the least expensive option and I could do it myself..I have a fairly large commercial type compressor, set at max of 160psi....so far, no breakages,guess I'm just lucky....Schedule 40 PVC is even thicker and probably has a higher psi rating.......2 large commercial body shops in the areause nothing but PVC throughout their shop with great results......

Whatever you use for your air lines,try to have a "slope" in them so the moisture in the air will drian and not collect or "pool" in any sag you may end up with...........

David
__________________
DAVID GAGNARD

Last edited by DAVID GAGNARD; 03-13-2012 at 11:06 AM..
Reply With Quote
  #12 (permalink)  
Old 03-13-2012, 12:18 PM
4RE KLR's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Feb 2000
Location: Neverland, TX
Cobra Make, Engine:
Posts: 7,460
Not Ranked     
Default

Thanks for that info David. I was thinking Schedule 40 might be a better solution than regular PVC. I did not know that it had such a high PSI rating. I have probaby used over a million feet of the 3/4 pipe over the last 25 years and have never used it in this application.

Thanks for the info on the hands on experiance.

______________
Ferrari Killer
Steve

Must Sell Right Now

.

Last edited by 4RE KLR; 03-13-2012 at 03:50 PM..
Reply With Quote
  #13 (permalink)  
Old 03-13-2012, 01:34 PM
DAVID GAGNARD's Avatar
Senior Club Cobra Member
Visit my Photo Gallery

 
Join Date: Jan 1999
Location: MARKSVILLE,LA.,,
Posts: 3,235
Not Ranked     
Default

Quote:
Originally Posted by 4RE KLR View Post
Thanks for that info David. I was thinking Schedule 40 might be a better solution than regular PVC. I did not know that it had such a high PSI rating. I have probaby used over a million feet of the 3/4 pipe over the last 25 years and have never used it in this application.

Thanks for the info on the hands on experiance
.
I just was in my shop and checked, I used all schedule 40(can't remember that far back, must must have hit a deal on it) thru out the shop for both water and air lines........the max psi I run in my shop is 160psi..

And the schedule 40 PVC pipe is rated at 480 psi!!!!!!!!!!!!

David
__________________
DAVID GAGNARD
Reply With Quote
  #14 (permalink)  
Old 03-13-2012, 03:51 PM
4RE KLR's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Feb 2000
Location: Neverland, TX
Cobra Make, Engine:
Posts: 7,460
Not Ranked     
Default

Wow, I had no idea. Thanks.

______________
Ferrari Killer
Steve

Must Sell Right Now

.
Reply With Quote
  #15 (permalink)  
Old 03-14-2012, 05:31 AM
RAO-3's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Jun 2008
Location: Central, NC
Cobra Make, Engine: ERA #775
Posts: 324
Not Ranked     
Default

When I did my garage, I used heavy wall copper pipe which worked well for me, but now there are kits out that make the install much easier. I think I saw one on the Eastwood site, but I'm sure others have them too.

-Ray
Reply With Quote
  #16 (permalink)  
Old 03-14-2012, 02:05 PM
CC Member
Visit my Photo Gallery

 
Join Date: Feb 2008
Location: Jacksonville, FL
Cobra Make, Engine: Kirkham #570 w Shelby FE
Posts: 1,009
Not Ranked     
Default

Copper tubing, seems to hold up well for A/C systems running 275psi. Use the silver / phosphorus rod for joints or compression fittings.

Black pipe is real expensive and rusts.

You can get the A/C line in 100ft rolls - fewer joints the better.
Reply With Quote
  #17 (permalink)  
Old 03-15-2012, 12:38 AM
Gofastoldguy's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Mar 2010
Location: Avondale, AZ
Cobra Make, Engine: Factory Five Roadster
Posts: 484
Not Ranked     
Default 3/4" sched 40 pipe

When in California I used Schedule 40 for my air compressor lines. I had take off points around the garage so I could engage the air lines in different areas of the garage. I ran about 120-130 # thru it. The lines were still working w/o problems after 10 years. Worked for me...
Bill
Reply With Quote
  #18 (permalink)  
Old 03-17-2012, 07:05 AM
DougD's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Mar 2000
Location: Des Moines, IA
Cobra Make, Engine: Sold my beloved Shelby CSX 4068, Gessford 427 Ford
Posts: 756
Not Ranked     
Default

I bought a 30' hose reel, hung it from the ceiling in the middle of the shop, and ran rubber flexible air hose from the compressor to the hose reel. Up through the ceiling at the compressor, back down at the hose reel. Cheap, fast, and works great. 30' is long enough to reach anywhere in the shop, and out the garage door to a car in the driveway.
__________________
CSX4068, '69 Bronco, '70 BOSS 302, '87 Mustang GT, '08 Roush Trak Pak
Reply With Quote
  #19 (permalink)  
Old 03-17-2012, 09:15 AM
mreid's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Jun 2008
Location: Chester Springs, PA
Cobra Make, Engine: Kirkham 289 FIA #690, FRPP 427 Boss engine
Posts: 764
Not Ranked     
Default

I'm not suggesting you necessarily purchase from Eastwood, but there are a variety of these kind of kits on the market. ebay also lists a bunch:

RapidAir Complete Garage Air Line Kits
__________________
RCR GT40 SOLD to Fast 5
Kirkham #690 289 FIA
Reply With Quote
  #20 (permalink)  
Old 03-17-2012, 05:44 PM
Tom Wells's Avatar
Senior Club Cobra Member
Visit my Photo Gallery

 
Join Date: Mar 2000
Location: St. Augustine, FL
Cobra Make, Engine: E-M / Power Performance / 521 stroker / Holley HP EFI
Posts: 1,912
Not Ranked     
Default

Here are a couple of threads from the 460 web site that should be of interest: New shop- compressor lines? - 460 Ford Forum

and PVC pipe-not for compressed gas service - 460 Ford Forum

Short synopsis: Don't use PVC for any compressed gas.

Period.

There are lots of safer ways to pipe compressed air that don't take much more time or dollars.

Tom
__________________
Wells's law of engine size: If it matters what gear you're in, the engine's too small!
Reply With Quote
Reply

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -7. The time now is 03:35 PM.


Powered by vBulletin® Version 3.8.0
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO 3.6.0
The representations expressed are the representations and opinions of the clubcobra.com forum members and do not necessarily reflect the opinions and viewpoints of the site owners, moderators, Shelby American, any other replica manufacturer, Ford Motor Company. This website has been planned and developed by clubcobra.com and its forum members and should not be construed as being endorsed by Ford Motor Company, or Shelby American or any other manufacturer unless expressly noted by that entity. "Cobra" and the Cobra logo are registered trademarks for Ford Motor Co., Inc. clubcobra.com forum members agree not to post any copyrighted material unless the copyrighted material is owned by you. Although we do not and cannot review the messages posted and are not responsible for the content of any of these messages, we reserve the right to delete any message for any reason whatsoever. You remain solely responsible for the content of your messages, and you agree to indemnify and hold us harmless with respect to any claim based upon transmission of your message(s). Thank you for visiting clubcobra.com. For full policy documentation refer to the following link: CC Policy
Links monetized by VigLink