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Old 01-08-2006, 11:52 AM
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A different way to run air lines

I had followed the good information on how air lines should be run and as this is my 3rd shop I have set up due to moves I have tried 3 different methods. This last shop I wanted the air compressor next to my work benches and that meant the air would only travel a few feet and then be discharged. I ended up building a vertical cooling tower out of 3/4 copper that took up almost no room and allowed for running over 50 feet before the air hit my first outlet. Not saying this is a better way but it does take care of my problem.

I tried to include a photo but am not sure it took.

Coldtexan
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Old 01-08-2006, 12:30 PM
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Cold, If your coils are laid out horizontally so that you don't have any low spots for water to collect and it can all drain to the bottom loop where it will have to be collected in a "drop" with a drain then that should work fine. But if it is such that you have bends at the bottom of the loops where water can collect and can't be drained then this will not work because the water will collect to the point where the air flow will start to become restricted and then the water that has collected will be picked up and expelled in surges by the air flow.
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Old 01-08-2006, 01:45 PM
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Re: A different way to run air lines

Oldred,

You are correct and it is unfortunate the photo that I tried to load did not take. My tower has 5 vertical lines each 10 feet long. The first line goes up and returns back down hits a T that directs the air up to the next vertical line but also continues straight down to a drain 16inches below the T. The same thing happens again when the air flow goes up and returns back down again hitting a T and a drain line. The last line goes up beyond the other lines and across to the feeds at my benches.

I put this togather on several pieces of plywood as a pre build and then when it was complete put it up on the wall next to the compressor feeding it with a 24 inch piece of high pressure hose.

Still not sure why the photo would not load?
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Old 01-08-2006, 02:34 PM
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That sounds like it will work. As long as there are no low spots where water can sit in the line with no place to drain so it will be out of the air flow. It seems like most of the time when I have installed water traps for someone their water problem could be traced to a low spot in the line somewhere. This is an especially annoying problem because it will usually seem like there is no problem until the water suddenly appears in large amounts only to disappear for a while.
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Old 01-10-2006, 07:12 AM
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I assume you ran the air full pressure through the cooling lines
before reducing the pressure at the end, otherwise I would be
concerned about pressure drop over the length you described.
That is if you regulated it down before running it through.
It sounds good to me, I have known of some guys building a coil
of copper and placing it in a tub of water.
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Old 01-10-2006, 07:52 AM
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Jc, I have seen that trick pulled also and have even done it myself on occasion. For those occasional times when you need truly dry air you can do this along with dumping a couple of bags of ice into the water and it will work as good as one of those expen$ive dryers, at least until the water gets warm. It will get even colder if you dump salt into into the ice water but I don't think that would be necessary.
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Old 01-11-2006, 12:18 PM
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Sounds like we're making ice cream now-LOL
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