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Old 11-04-2013, 07:36 PM   #1
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outside air compressor outlet

Hello! i just got a new 33 gallon stationary air compressor and would love to install a permanent compressed air outlet outside and leave the air compressor in the basement. Ive googled this without much luck, so i think i might have to get creative. has anyone done this? any thoughts? it has to be weather proof.....maybe copper piping to some type of short hose before it connects to the compressor?

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Old 11-04-2013, 08:24 PM   #2
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Compressed air is typically piped in 1/4" threaded galvanized steel pipe. Copper is not strong enough for the pressure.

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Old 11-04-2013, 09:45 PM   #3
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Cooper can indeed handle being pressurized.
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Old 11-05-2013, 06:03 AM   #4
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Maaco Auto Painting plumbs all their shops in copper air line,because it doesnt rust on the inside.My compant leases a building to them and I talked to their installers.
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Old 11-05-2013, 09:06 AM   #5
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Using hose from compressor to copper line may be best if you aren't going to fab up something to keep the copper tubing from constant vibration. If you know how to bend tubing and install fittings you should be gtg.
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Old 11-05-2013, 09:15 AM   #6
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Googling "air compressor plumbing" should give your everything you need to know.
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Old 11-05-2013, 10:53 AM   #7
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Plumb it using Sched 40 PVC, much the same way you would do a Sprinkler System.
MORE THAN capable of handling the pressures of an air Compressor. Much eaiser to cut, attach fittings, inexpensive, won't rust, much less install time.
Just my thoughts.

NOTE: You can use 1/2", or as I often do, 3/4" which will increase your Air Supply / CFM at the termination points.
(great for Impacts and such)

AS A REFERENCE = 1/2" has a Max working pressure of 600 psi, and the 3/4" drops to 480 mwpsi, and FOOD FOR THOUGHT, 1" drops to 450.
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Old 11-05-2013, 04:36 PM   #8
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I'm wondering if I could use a regular garden hose sillcock probably with an adapter to change the thread size and a quick connect on the end? I'm betting they aren't rated for air psi......wonder if it would work
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Old 11-05-2013, 04:48 PM   #9
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^^^^What is it YOU are trying to accomplish ?
You can find everything you will need to install a
System in PVC at your local lowes / home depot /
hardwear store ---- including the air chuck quick
connects in 1/4" / 3/8", or even 1/2" MPT.

But if your just wanting to change to Hose threads
for whatever reason----- I'd go the route of using a
Gate or Ball Valve.
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Old 11-05-2013, 05:36 PM   #10
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Being in the business I would suggest PEX tube for a homeowner installation. You can get the tube and fittings at HD or Lowes. All the joints are push in so there is no need for any special tools other than a Knife and it is very easy to work with. This system is very flexible and is used on assembly line pneumatic systems all over.
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Old 11-05-2013, 05:38 PM   #11
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Quote:
Originally Posted by KaiserJeep View Post
Compressed air is typically piped in 1/4" threaded galvanized steel pipe. Copper is not strong enough for the pressure.
Just FYI standard type "L" copper has a burst strength around 5000 PSI.
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Old 11-05-2013, 06:32 PM   #12
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Quote:
Originally Posted by KaiserJeep View Post
Compressed air is typically piped in 1/4" threaded galvanized steel pipe. Copper is not strong enough for the pressure.
Quote:
Originally Posted by JimsJeep View Post
Just FYI standard type "L" copper has a burst strength around 5000 PSI.

Not to mention that quarter inch Galvenized is quite small in I.D.
and I'd guess that was a Typo and was meant to say 3/8 in. I.D.
WHICH is all so on the small side.
Just my thoughts ----- BUT WHAT DO I KNOW ?
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Old 11-05-2013, 07:13 PM   #13
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I'm trying to accomplish a permanent outside air hose connection......similar to a garden hose connection but air instead of water......im leaning towards pex or copper, but haven't seen a good solution for a permanent outside quick connection......basically a garden hose connection with a quick connect on the end.....attached to the compressor inside.....idk
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Old 11-05-2013, 07:54 PM   #14
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Quote:
Originally Posted by Wrangler010 View Post
I'm trying to accomplish a permanent outside air hose connection......similar to a garden hose connection but air instead of water......im leaning towards pex or copper, but haven't seen a good solution for a permanent outside quick connection......basically a garden hose connection with a quick connect on the end.....attached to the compressor inside.....idk
You really do not need a valve outside, the female quick connect is a valve in itself. Don't use a hose cock, get a ball valve if you need a valve. The pex fittings come in male and female adapters so you can assemble numerous arrangements.

You could thread a long nipple on a quick connect and install that thru the wall then adapt to pex inside.
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Old 11-10-2013, 04:40 PM   #15
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All done! It came out great! I cut in an electrical old work box and piped through the back into the basement.....so in the old work box there is a quick connect under a weather proof cover......I ran 3/4 type m copper to the compressor.....good stuff!

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