Author Topic: PVC for compressed air  (Read 18391 times)

Offline Uncle Buck

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PVC for compressed air
« on: June 18, 2010, 09:11:37 AM »
For the time when folks want to discuss whether or not to install PVC airlines in their shop I am including the following link to the OSHA we site that details their position on PVC airline installations. Hopefully the link will be good for a while.

http://www.osha.gov/dts/hib/hib_data/hib19880520.html
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NEED A 1/2" BONNEY STREAMLINE COMBINATION AND ANY OVER 13/16" TOO!



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Offline pipehack

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Re: PVC for compressed air
« Reply #1 on: June 18, 2010, 11:58:56 PM »
Just do it in copper.. It's not that much or difficult. On a scale of 1 to 10 it's about a 4.
I watched a snail crawl along the edge of a straight razor. That's my dream. That's my nightmare. Crawling, slithering, along the edge of a straight razor.... And surviving.

Offline Uncle Buck

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Re: PVC for compressed air
« Reply #2 on: June 19, 2010, 01:23:18 AM »
True words there!
You boys better hold on cause i'm gonna have to stand on it!

NEED A 1/2" BONNEY STREAMLINE COMBINATION AND ANY OVER 13/16" TOO!



Andrew Jackson quote: But you must remember, my fellow-citizens, that eternal vigilance by the people is the price of liberty, and that you must pay the price if you wish to secure the blessing.

Offline djbohn

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Re: PVC for compressed air
« Reply #3 on: June 20, 2010, 06:40:24 AM »
I piped with 2" PVC. t gave me another ~30 gal air. Teaches you good cementing practice too :-

Offline Itzkwik

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Re: PVC for compressed air
« Reply #4 on: June 20, 2010, 09:31:18 AM »
DJ, pllease read the link Uncle Buck posted above. You do NOT want to have PVC airlines in a shop. It's not rated for air. When, not if, it breaks, it's going to be ugly.
Bret

Offline RJAY

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Re: PVC for compressed air
« Reply #5 on: June 24, 2010, 04:22:28 PM »
I piped with 2" PVC. t gave me another ~30 gal air. Teaches you good cementing practice too :-

IMO PVC is unsafe. Want to use plastic, use plastic that is made for it.

AS far as using 2 inch lines again IMO it's a waste. The reason being, is the compressor output (CFM ) can not provide any more or less output. Therefor if your compressor pumps out 20 cfm to fill up a 40 cfm tank it will take 2 min. a 60 cfm 3 min.. My point being a bigger capacity takes longer to fill. Where is the benefit? Need more air? Spin the compressor faster or the best way get a larger compressor.

Note: Adding air pressure to this explanation will not change a thing.

Offline flashpuppy

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Re: PVC for compressed air
« Reply #6 on: June 24, 2010, 04:31:34 PM »
You guys solder your copper lines, or what?  How about that black iron pipe?  Can you thread the smaller diameters of it without an expensive pipe threader?
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Offline Uncle Buck

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Re: PVC for compressed air
« Reply #7 on: June 24, 2010, 04:54:02 PM »
Sure, you could always hand thread it with the correct sized pipe threading dies and a handle.  ;)
You boys better hold on cause i'm gonna have to stand on it!

NEED A 1/2" BONNEY STREAMLINE COMBINATION AND ANY OVER 13/16" TOO!



Andrew Jackson quote: But you must remember, my fellow-citizens, that eternal vigilance by the people is the price of liberty, and that you must pay the price if you wish to secure the blessing.

Offline flashpuppy

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Re: PVC for compressed air
« Reply #8 on: June 24, 2010, 04:58:07 PM »
Sure, you could always hand thread it with the correct sized pipe threading dies and a handle.  ;)

DUH!!!!!!    frustrated
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Offline Uncle Buck

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Re: PVC for compressed air
« Reply #9 on: June 24, 2010, 05:37:29 PM »
Sure, you could always hand thread it with the correct sized pipe threading dies and a handle.  ;)

DUH!!!!!!    frustrated

Somethin tells me you already knew that though for some reason!  :D
You boys better hold on cause i'm gonna have to stand on it!

NEED A 1/2" BONNEY STREAMLINE COMBINATION AND ANY OVER 13/16" TOO!



Andrew Jackson quote: But you must remember, my fellow-citizens, that eternal vigilance by the people is the price of liberty, and that you must pay the price if you wish to secure the blessing.

Offline pipehack

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Re: PVC for compressed air
« Reply #10 on: June 24, 2010, 09:47:27 PM »
Personally.... If and that's a BIG IF, I had the money I would pipe the whole deal in brass pipe just because I want to. Plus there would be no chance of rust in the pipe.
I watched a snail crawl along the edge of a straight razor. That's my dream. That's my nightmare. Crawling, slithering, along the edge of a straight razor.... And surviving.

Offline RJAY

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Re: PVC for compressed air
« Reply #11 on: June 24, 2010, 11:07:47 PM »
Personally.... If and that's a BIG IF, I had the money I would pipe the whole deal in brass pipe just because I want to. Plus there would be no chance of rust in the pipe.

I was thinking of using sprinkler tubing inside of black pipe. Your thoughts?

Offline Uncle Buck

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Re: PVC for compressed air
« Reply #12 on: June 25, 2010, 11:17:35 PM »
Personally.... If and that's a BIG IF, I had the money I would pipe the whole deal in brass pipe just because I want to. Plus there would be no chance of rust in the pipe.

I was thinking of using sprinkler tubing inside of black pipe. Your thoughts?

I think you should skip the sprinkler tubing, and just run the black Iron pipe and call it good! What would you gain with the addition of the sprinkler tubing? It would seem to me that the only thing the sprinkler tubing would do is act as a line restriction inside the black iron pipe anyway.  shrug
You boys better hold on cause i'm gonna have to stand on it!

NEED A 1/2" BONNEY STREAMLINE COMBINATION AND ANY OVER 13/16" TOO!



Andrew Jackson quote: But you must remember, my fellow-citizens, that eternal vigilance by the people is the price of liberty, and that you must pay the price if you wish to secure the blessing.

Offline pipehack

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Re: PVC for compressed air
« Reply #13 on: June 26, 2010, 12:26:59 AM »
Personally.... If and that's a BIG IF, I had the money I would pipe the whole deal in brass pipe just because I want to. Plus there would be no chance of rust in the pipe.

 it would be one of those things just to say "look at this!" :P That's all. Be careful with black iron. It will rust. Do it in copper. It will last a lifetime. For sure.  thumbsup
I watched a snail crawl along the edge of a straight razor. That's my dream. That's my nightmare. Crawling, slithering, along the edge of a straight razor.... And surviving.

Offline RJAY

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Re: PVC for compressed air
« Reply #14 on: June 26, 2010, 10:08:32 PM »
Reason I mentioned this my shop was done in black pope in 1988. The inside is pitted and has scale. Of course the pipe is behind sheetrock All the new line I installed was 3/4 copper.

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Re: PVC for compressed air
« Reply #14 on: June 26, 2010, 10:08:32 PM »

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