Rapid Air 3/4" compressed air piping---nice! - Page 2
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  1. #26
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    Mar 2014
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    653

    Re: Rapid Air 3/4" compressed air piping---nice!

    For years I bought black pipe at the plumbing supply house, then I noticed it on line card at the steel supply yard- it was so much cheaper there... can't remember exactly but I think it was about 60-75% less, the only difference was the plumbing supply material has threaded ends and a merchant coupling, steel yard pipe is plain end.
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  2. #27
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    Jun 2006
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    Fayetteville, N.C.
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    227

    Re: Rapid Air 3/4" compressed air piping---nice!

    lowes will cut and thread black pipe for free...
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  3. #28

    Re: Rapid Air 3/4" compressed air piping---nice!

    I found a Quincy 325 a couple years ago for $500 bucks. This past winter I rebuilt the head, put new gaskets in it etc. It has a 3HP motor(that draws 25amp, so really a 5+) which runs no problem on a 30A breaker. I honestly love this compressor, it doesn't miss a beat, and can be configured so many ways as far as unloading. With a 100% duty cycle you can configure it for constant duty with a pilot valve, and unload the pump at a given pressure, and reload it when it hits a lower pressure. My compressor was originally purchased by a truck stop, then sold to a body shop, and was originally built in 1965, and hasn't missed a beat.

  4. #29
    Join Date
    Jul 2012
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    Deputy In
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    21

    Re: Rapid Air 3/4" compressed air piping---nice!

    Quote Originally Posted by Oscar View Post
    Here's a pic of it running down the length of the edge of the carport ceiling.



    Straight enough for me. Although my IR regulator has developed a loud high-pitched whistle that reverberates all the way back down to the 80gal compressor.
    That looks awesome, doesn't look like it was a coil of pipe at all.

  5. #30
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    Jun 2012
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    Laredo, Tx
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    4,136

    Re: Rapid Air 3/4" compressed air piping---nice!

    Quote Originally Posted by lmalcomb View Post
    That looks awesome, doesn't look like it was a coil of pipe at all.
    Yea it came out pretty good. It was 85°+F so I imagine that helped versus uncoiling it at 50°F or lower. Now I just have to find out why my IR regulator is howling.
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  6. #31
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    Jan 2008
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    Lansing, MI
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    Re: Rapid Air 3/4" compressed air piping---nice!

    Quote Originally Posted by Softail Rider View Post
    lowes will cut and thread black pipe for free...
    Im sure if I handed them the cut list (and then the revised cut list) I had for the job I just did, I would have been briskly escorted from the store and told not to return....

    Yea, they will do it for you. I think Depot charges after so many cuts.... Could be wrong on that tho.
    Last edited by 7A749; 03-06-2016 at 12:55 AM.

  7. #32
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    Jun 2012
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    Re: Rapid Air 3/4" compressed air piping---nice!

    Almost forgot, can a mod please move this thread to the new Shop subforum? That place is already getting hit with welding machine threads! Lol
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  8. #33
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    Jan 2008
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    Re: Rapid Air 3/4" compressed air piping---nice!

    Quote Originally Posted by Oscar View Post
    Yea it came out pretty good. It was 85°+F so I imagine that helped versus uncoiling it at 50°F or lower. Now I just have to find out why my IR regulator is howling.
    I wonder if you have too much pressure going to it Oscar.

    Only reason I suggest this is because I had three of them start leaking profusely on me and it ended up being the regulators were rated at just under what I was running on average. After a short amount of time, they all leaked.

    I have also found that if there's any angular distortion caused when you mounted it, or the ring holding it to the bracket is torqued down too tight, they disrupt the mechanism that bleeds the excess air off when you adjust it. I had to fart around with two of the three I bought to make sure the collar holding the top to the body was tight, but that the ring holding it on the bracket wasn't too tight. Being many of my connections to the regs are rigid pipe, I had to make sure the regulator didn't get tweaked in the bracket. That seemed to cause leakage. Once I got it mounted plumb and level and got the collars properly tightened down, the blowoff was normal like it should be. One of the regulators had a loose collar, that was part of the problem on the one that was leaking at first.

    Of course, I dunno how your particular regulator is designed, but I'm guessing they're all kinda similar.

    Just something to consider if you already haven't.
    Last edited by 7A749; 03-06-2016 at 12:45 AM.

  9. #34
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    Re: Rapid Air 3/4" compressed air piping---nice!

    Quote Originally Posted by Oscar View Post
    Almost forgot, can a mod please move this thread to the new Shop subforum? That place is already getting hit with welding machine threads! Lol
    Done

  10. #35
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    Jun 2012
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    Re: Rapid Air 3/4" compressed air piping---nice!

    It's not even mounted to anything. The rapidair system is rigid enough to support both the regulator and the filter because the support brackets for the tubing are fairly close.

    The regulator is rated to handle 250psi. If I need to regulate the air going to a heavy duty regulator, then I'll be pissed lol.
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  11. #36
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    Re: Rapid Air 3/4" compressed air piping---nice!

    Maybe you got a bum one. I thought for sure that was the deal with mine until I get to looking at it.

  12. #37
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    Re: Rapid Air 3/4" compressed air piping---nice!

    What do you all suggest for a heavy duty regulator? Milton? I dont want something industrial, but certainly something better than this IR one. Don't wanna take a chance on another bum one.
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