I recently got a nice, used air compressor for a really great price. I have been needing one to power my air sander and also to keep up with my HVLP sprayer. This fits the bill perfectly. However, I want really dry air for using my spray gun, and also to make my other air tools last longer. Moist air isn’t good for any air tool that I’m aware of. So,
I researched a bit, and decided to make a cooling loop to cool the air off after it come out of the tank/compressor before it runs through my water/oil separator. Here are a few shots of it:
I used 1/2” copper tubing with flare fittings, and 1/2” threaded steel pipe & fittings. The concept is that the warm or hot air gets pumps up to the top, and then goes through about 37 feet of copper tubing coiled up, and cools down to make the water condense. Then the water gets caught in the drip leg, and the rest of it gets separated out in the water/oil separator. So far, I think it works. I got the compressor warmed up good, and the air coming out of the tank was pretty warm, and by the time it got to the water separator, it felt quite cool. The tubing on top was warm, and on the bottom was cool. I’ll have to test it out more this summer when the compressor gets hotter and the weather is moister, but so far it really seems to be helping….
Happy feast of St. Joseph, foster father of Jesus, a carpenter and patron of all fathers!