I will be installing 1" copper piping in my garage for use with my
150psi air compressor.
Would like to know if compression fittings are acceptable.
- posted 17 years ago
Compressed air piping: Fitting question
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- posted 17 years ago
Yes.
Copper works well for this.
- posted 17 years ago
Or learn to sweat them. Except for the connectors, of course. Really easy,
and a lot cheaper. On 1", probably a lot cheaper.
Steve
Steve
- posted 17 years ago
Solder ring fittings are almost idiot proof, as long as clean beforehand,
and a little bit of flux smeared on.
- posted 17 years ago
1" copper?
You need that much CFM??
Compression is fine, solder would be better, cheaper.
Greg
- posted 17 years ago
Into the storm!!! Copper is NOT for air lines! DON'T DO IT!!! My
insurance inspector, fire inspector, and building inspector all go into
siezures at the mention of copper air lines. It's illegal here, probably
for a reason. If you're going to use copper, why not PVC? 1"??? What are
you're needs for that much air? Please use black pipe, PLEASE!!!
- posted 17 years ago
Elaborate, please?
Here, where?
Into the storm indeed!
Jim
================================================== please reply to: JRR(zero) at yktvmv (dot) vnet (dot) ibm (dot) com ==================================================
Here, where?
Into the storm indeed!
Jim
================================================== please reply to: JRR(zero) at yktvmv (dot) vnet (dot) ibm (dot) com ==================================================
- posted 17 years ago
PVC flies into shards for little reason.
Copper (as long as you don't use it to connect to vibrating machinary)
works well.
- posted 17 years ago
Yes, I knew this thread would arrive here sooner or later.
I "plummed" my shop with 1/2" air hose. It may be a crime or a sin, but it seems to me that's what the stuff is made for. Cheapest/quickest solution I could find. Has been working great for 10 years now. It still looks like new, but if it were to fray, bulge, or rot, I could re-do the whole system in half a day.
Why would you do anything else?
I "plummed" my shop with 1/2" air hose. It may be a crime or a sin, but it seems to me that's what the stuff is made for. Cheapest/quickest solution I could find. Has been working great for 10 years now. It still looks like new, but if it were to fray, bulge, or rot, I could re-do the whole system in half a day.
Why would you do anything else?
- posted 17 years ago
Chuckle..in California, its not only legal, but recommended.
However..I still install black pipe in customers sites, even though its more expensive.
Gunner
That rifle hanging on the wall of the working-class flat or labourer's cottage is the symbol of democracy. It is our job to see that it stays there. - George Orwell
However..I still install black pipe in customers sites, even though its more expensive.
Gunner
That rifle hanging on the wall of the working-class flat or labourer's cottage is the symbol of democracy. It is our job to see that it stays there. - George Orwell
- posted 17 years ago
I have been considering this. Right now I have 1" PVC. I knew, when
putting it up, that it would need to be replaced. I needed air in a
hurry and the PVC was fastest. I worked in a shop where the PVC blew
up on a regular basis. But if I use air hose it will need to be at
least 1". Any smaller entrains too much moisture.
ERS
- posted 17 years ago
Evidently the anti-copper poster was way too far into the trade union
dogma, and too lightly into practical experience in an industrial or
shop environment.
Copper is easy to install with soldered fittings, even in complex installations, and can withstand moderately high air pressures without the risk of fragmentation posed by alternative materials. I've personally had PVC dryer assemblies burst (explode), and it was a a very loud noise and a very ugly scene. Fortunately no one was in the area at the time, because the fragmentation damage to the area was extensive (this was on a system involving only 90 PSI air supply).
To this I will only add, never use PVC or black iron pipe, becuase both can fragmentate under pressure excursions (which do happen from time-time-to time). By contrast, copper will generally just burst a seam (although in over 30 years I've never seen this happen with compressed air). Black iron pipe is primarily sold ONLY for low pressure gas lines.)
If you're dealing with very high pressures, say between 400 and 6,000 psi, seamless stainless steel tubing is the only reliable choice, but generally with air lines, most of us are not dealing with those kinds of pressures.
Harry C.
Copper is easy to install with soldered fittings, even in complex installations, and can withstand moderately high air pressures without the risk of fragmentation posed by alternative materials. I've personally had PVC dryer assemblies burst (explode), and it was a a very loud noise and a very ugly scene. Fortunately no one was in the area at the time, because the fragmentation damage to the area was extensive (this was on a system involving only 90 PSI air supply).
To this I will only add, never use PVC or black iron pipe, becuase both can fragmentate under pressure excursions (which do happen from time-time-to time). By contrast, copper will generally just burst a seam (although in over 30 years I've never seen this happen with compressed air). Black iron pipe is primarily sold ONLY for low pressure gas lines.)
If you're dealing with very high pressures, say between 400 and 6,000 psi, seamless stainless steel tubing is the only reliable choice, but generally with air lines, most of us are not dealing with those kinds of pressures.
Harry C.
- posted 17 years ago
Copper joined with Sil-Phos seems to be fairly standard with A/C piping (at
least, here on the eastern side of the pond :-). A/C duty is more severe than
compressed air duty. I can't see why Tom would be so upset about copper for
home workshop use.
I will be plumbing in the new workshop about September, and have no particular
bias towards iron or copper (or Admiralty brass for that matter), so please
help me make up my mind folks.
Mark Rand RTFM
Mark Rand RTFM
- posted 17 years ago
FWIW at my plant the standard for nearly all the process gasses
(and this includes 120 psi compressed air) is copper joined with
sil-phos.
The only ones not done that way are clean boil-off nitrogen, which is run in specially de-greased seamless stainless steel tubing.
Jim
================================================== please reply to: JRR(zero) at yktvmv (dot) vnet (dot) ibm (dot) com ==================================================
The only ones not done that way are clean boil-off nitrogen, which is run in specially de-greased seamless stainless steel tubing.
Jim
================================================== please reply to: JRR(zero) at yktvmv (dot) vnet (dot) ibm (dot) com ==================================================
- posted 17 years ago
I think of all the black pipe I have had to run over the years and all the
cutting, threading, lifting, screwing and wrenching I have had to do any
along comes ...copper? Why shouldn't EVERYONE have to suffer the
back-breaking work that I have had to do? Why should THEY get away with an
easy job? (ok, I have copper at home) But I stick to my guns about NO PVC!
- posted 17 years ago
Yup. Same experience here. My 1/2" copper air lines have been in
service for close to 10 years and have never had a problem or failure.
As long as you use a loop of rubber tubing between the compressor and copper lines to absorb vibration, a copper air line system will probably outlive your need for it.
Tim
As long as you use a loop of rubber tubing between the compressor and copper lines to absorb vibration, a copper air line system will probably outlive your need for it.
Tim
- posted 17 years ago
All I know is that my 20 hp Quincy compressor states in the manual to NEVER
use soldered fittings on copper pipe used for compressed air.. ONLY flared
or compression fittings for copper pipe BTW they plumb the whole machine
with compression fittings and copper pipe. I would also like to hear about
the exploding black iron pipe??
William...
William...
- posted 17 years ago
Aahh. I can live with that reasoning! Would copper be all right if I tie
bricks to the pipe while fitting it to make it heavy and make the brackets out
of hand carved phosphor bronze blocks
Regards Mark Rand RTFM
Regards Mark Rand RTFM
- posted 17 years ago
Not just your plant. Most of Silicon Valley
uses copper for non corrosive/non ultrpure
gasses.
- posted 17 years ago
THAT'S the spirit!!! You are a man, you must suffer!
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