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#1 |
Registered User
Join Date: Nov 2007
Location: peaster, texas
Posts: 71
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airline question
I know this probably doesn't belong here, but I need to know. My shop will be done next week and I'm running airlines on each wall. My question is can I use pvc or does it have to be copper pipe? With the price of copper it will be expensive. Any help is appreciated.
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#2 | |
Sierra Grande Club
Join Date: Jan 2007
Location: New Mexico USA
Posts: 2,433
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Re: airline question
Quote:
s/t
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#3 |
Cultural Infidel
![]() Join Date: Jan 2007
Location: Clearwater, FL
Posts: 668
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Re: airline question
For air lines, just use standard black pipe.
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#4 |
Size Matters
Join Date: Aug 2007
Location: Lyman, SC
Posts: 9,189
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Re: airline question
^^What he said...way cheaper than copper. Prolly not too much more than PVC.
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"Reading the owners manual is only for quitters." Jason Harper, Bloomberg News. ![]() ![]() |
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#5 | |
so easy a caveman can do it...
![]() Join Date: May 2006
Location: Albuquerque, NM
Posts: 419
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Re: airline question
Quote:
http://www.webbikeworld.com/t2/compressed-air/ |
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#6 |
Registered User
Join Date: Nov 2007
Location: peaster, texas
Posts: 71
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Re: airline question
Thanks for all the input guy's. I am going to price the black pipe and compare to pvc. If it is comparable I will probably look at the using the black pipe
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#7 |
Senior Member
Join Date: Jan 2003
Location: daytonabeach
Posts: 22,956
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Re: airline question
for a good blueprint on how to properly lay out an air system go to www.tptools.com
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#8 |
Happy to be here
![]() Join Date: Mar 2000
Location: Cypress, TX
Posts: 39,023
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Re: airline question
I ran PVC before with no adverse affects. The only danger is if struck by a sharp object it might shatter.
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#9 |
Registered User
Join Date: Oct 2007
Location: Tucson, Az
Posts: 172
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Re: airline question
I run a pvc set up for my moister set up for painting. But I have been told it it dangerous. I will replace and do a better set up in copper or black pipe.
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#10 |
Senior Member
Join Date: Oct 2004
Location: calhoun city ms
Posts: 940
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Re: airline question
You might consider "CPVC" which is used for hot water applications and is thicker than just PVC which is supposed to be used for cold water only.
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#11 |
Gone to greener pastures
![]() Join Date: May 2007
Location: Gateway to the Delta
Posts: 7,354
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Re: airline question
Don't use PVC!
If something hits it, &/or cracks it, you could have potentially disastrous results with sharp shrapnel flying everywhere. The risk is just not worth the cost savings. Copper, or black iron, is a one time expense & will outlive both of us. I'd hate to see a board member get punctured! Y'all now have my .02.
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#12 |
I am a Referee of life.
Join Date: Jun 2000
Location: Greensboro N.C.
Posts: 13,993
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Re: airline question
Use a good condensate filter right after the compressor.Use a flexible hose to hook the compressor to the line and use the black pipe.May cost a little more but with this and a drainable drip leg you should solve lots of the moisture problem.Make sure you use a union whereever you may want to change later and you should be fine.I've run a few industrial set-ups and have always done them this way,fortunately most plants have the tools.
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#13 |
Senior Member
Join Date: Apr 2005
Location: Joppa, Maryland
Posts: 4,408
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Re: airline question
CPVC is the way to go. Don't use PVC.......
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1997 GMC Sierra Ext 1965 Mustang |
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#14 |
Rottenwood Garage Member
Join Date: May 2005
Location: Marietta, Georgia
Posts: 4,321
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Re: airline question
I agree.............with that said...........I used PVC in my shop with all the air lines run high out of the way and all my drops are all protected. I have had no problems...YET. When and if I ever re-do it it will be in black pipe...but it will be way more expensive!!!
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#15 |
Active Member
Join Date: Oct 2006
Location: Ohio
Posts: 1,643
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Re: airline question
Ok Guys I will weigh in on this since I sell PVC for a living.
NEVER USE PVC FOR COMPRESSED AIR OR GAS!!!!!!!! We have warnings on most of our boxes & nearly every page of our catalog etc. The mode of failure is the issue - when thermoplastic pipe fails it shatters (only when dealing with compressed air and gas, liquid is a different discussion) the stored kinetic energy in the pipeline turns the line into shrapnel, think grenade. This has enough power to take chips out of concrete walls, penetrate metal doors etc. CPVC DOES NOT have a thicker wall and will react in the same manner. The only difference between CPVC & PVC is the additional chlorination process that creates a piping system good to 210 degrees F Vs 140 degrees F for PVC. OSHA recognizes the following as acceptable products for commercial applications Black steel Copper Galvanized Stainless Alum. Duraplus - Thermoplastic piping made for compressed air - will not shatter Chemair - same as above but being discontinued as of last week Airpro - Same as above but use' thermal fusion since it impervious to compressor oils & solvents Duratec - PE inside and outside with an Alum core, semi ridged piping system that is made in 100 & 300 foot coils, most goosenecks, 45's and 90's are bent by hand and the lack of joints makes this a cost efficient system to install. Bottom line. If you have PVC/CPVC in you shop for compressed air I would remove it. It may last for years, but if and when it fails it is not pretty. Again we are talking about compressed air and gas here, these products handle water to harsh caustics and acid better than most metallic piping systems can. Virtually every water treatment plant, waste treatment plant, plating, painting, ecoat, powder coat, power plant, computer chip mfg, to dialysis clinics use' plastic piping to satisfy the need for corrosion protection or high purity and they work fantastic.
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#16 |
Registered User
Join Date: Aug 2005
Location: Mechanicsburg, PA
Posts: 86
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Re: airline question
Just what 1968SWBBigBlock said. I was in an airplane hanger several years ago when a PVC compressed air line broke. I'm glad it was a big hanger and I was on the other side of the shop. LOUD boom! plastic shrapnel imbeded in the skin of aircraft near by! Not pretty.
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