Air compressor pulling from under the house

[Nate0918]

I'm looking to accomplish two things, a cooler intake charge, and quieting the compressor a bit. I would pull from the attic but it gets 100+ in the summer up there. My only concern is sucking in extra moisture. Its a 2stage 60gallon HF compressor. Thoughts?

 

[cvairwerks]

Not worth the expense to do it right. Doing it right would mean enlarged intake piping, a flexible section between the compressor and the hard line, and a suitable rough filter box.

We remoted the intakes about 15 feet on our 25hp Quincy at one place I worked. I think we had to move up to 4" lines to keep from starving the intake.

 

[skulldrinker]

My neighbor and I solved similar problems but he had a two stage and i had a single stage. He solved the loud intake noise on the 2 stage by piping the intake up into the attic. Basically pipe it anywhere where you won't hear it.

To get cool air from my single stage I took a 50 foot roll of 1/2" copper tubing connected one end at the compressor head and the other end to the tank. Replacing the small 1 foot stock pipe. I took the 50' coil and ran it through the wall and buried the coil under ground. I guess 35 out of 50 feet was buried in the cool ground. I put a water filter inline before entering the tank to remove all the water. There was lots of water that didn't make it into the tank with this setup. Great for painting.

The coil is still buried after 30 years. I just swapped the old compressor with a new one and still have to reconnect the coil line. With the stock line right into the tank i notice the tank get super warm without the buried cooling coil.

 

[Nate0918]

I have no option to bury anything, otherwise I would put the entire compressor in a coffin with a lid if I could. Now that I think about it, water vapor in the supply air doesn't really matter. Once the air is compressed in the tank, water is going to puddle in the bottom no matter what. How much puddles is a moot point if its being drained. I imagine that with my little 5hp motor, I wouldn't need a large inlet pipe, I would think 2" or so would be adequate for a 20' stretch.