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  1. #1
    Join Date
    Apr 2012
    Posts
    203

    Question Air Compressor Piping?

    I have a large industrial air compressor. I want to set it up so that I have two separate outlets; one lubricated (for tools) and one not lubricated (for sand blaster and painting).

    What are my options as far as the type of piping I can use (I do not want to use hose for this). Can I use copper pipe soldered together?

    What about PVC?

    Or does all the piping have to be threaded?

  2. #2
    Join Date
    Sep 2012
    Location
    Boston
    Posts
    821

    Default Re: Air Compressor Piping?

    i use regular copper piping, works great and looks good. you'll be fine up to about 150psi

  3. #3
    Join Date
    Mar 2008
    Location
    nova scotia, canada
    Posts
    1,522

    Default Re: Air Compressor Piping?

    copper or pex will work best.. i believe abs will shatter if fails as its not rated for pressure
    fire up the saw and make some dust

  4. #4
    Join Date
    Jul 2010
    Location
    SoCal
    Posts
    5,084

    Default Re: Air Compressor Piping?

    Like was said before, copper rules.

    Copper is expensive, because it's worth it.

  5. #5
    Join Date
    Apr 2012
    Posts
    203

    Question Re: Air Compressor Piping?

    What size? Half inch?

  6. #6
    Join Date
    Aug 2007
    Posts
    6,481

    Default Re: Air Compressor Piping?

    Size will depend upon volume needed. Look at the specs on the tools you'll be powering at any given time and location, then size the pipe accordingly.

    A quick Google search brought up this, which may be of assistance.
    http://www.engineeringtoolbox.com/pr...pes-d_852.html
    I suffer from CDO ... Its like OCD, but in alphabetical order, LIKE IT SHOULD BE!!!

  7. #7
    Join Date
    Mar 2013
    Location
    WI
    Posts
    108

    Default Re: Air Compressor Piping?

    Here is a thread from one of my gearhead sites. Lots of ideas and answers,along with some pictures-
    http://forums.performanceyears.com/f...mpressor+lines

  8. #8
    Join Date
    Jan 2008
    Posts
    1,096

    Default Re: Air Compressor Piping?

    I know of many shops that use plain old PVC piping for their air compressor mains with no problems. This is not OSHA approved so I am not recommending it, but so long as you bring them up to pressure slowly and don't exceed 150 PSI it will work just fine. There is a risk of fracturing so it's best to keep these lines enclosed or distant from human-occupied areas in case a pipe blows as fragments may go everywhere and distance reduces their velocity. Another trick for smaller lines is to use truck air-brake tubing. This is more bendable than flexible but it too works well and lasts nigh on forever. Darn near anything that is meant for the pressure level you are using will work so long as you use common sense and understand the properties of the stuff then allow for that. Without common sense nothing is safe except staying away from the tools altogether and we know we can't do that!

    Phil

  9. #9
    Join Date
    Sep 2012
    Location
    Boston
    Posts
    821

    Default Re: Air Compressor Piping?

    Quote Originally Posted by Mastercarpentry View Post
    I know of many shops that use plain old PVC piping for their air compressor mains with no problems. This is not OSHA approved so I am not recommending it, but so long as you bring them up to pressure slowly and don't exceed 150 PSI it will work just fine. There is a risk of fracturing so it's best to keep these lines enclosed or distant from human-occupied areas in case a pipe blows as fragments may go everywhere and distance reduces their velocity. Another trick for smaller lines is to use truck air-brake tubing. This is more bendable than flexible but it too works well and lasts nigh on forever. Darn near anything that is meant for the pressure level you are using will work so long as you use common sense and understand the properties of the stuff then allow for that. Without common sense nothing is safe except staying away from the tools altogether and we know we can't do that!

    Phil
    good answer, makes sense

  10. #10
    Join Date
    Feb 2013
    Location
    The thumb, MI
    Posts
    54

    Default Re: Air Compressor Piping?

    Copper has priced itself out of consideration as far as I'm concerned. I like the idea of PEX but wonder if the sag between supports will allow oil or water to pool?

    I always wanted to run PVC air lines in my shop but I let the nay-sayers prevent me. I'm glad I ignored them and used PVC for my dust collector as the explosion hazard has been pretty much debunked these past 20 years or so. I wonder if shattering air lines is also an urban legend?

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