Compressor after cooler

[BCreekDave]

Could just use a coelescing water separator with a float type automatic drain on the inter cooler output before going in to the second stage. This would ensure only water vapor would go into the second cylinder.


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[pcmeiners]

"It would be very simple to place a second coil in the barrel and cool the air from the first stage pump before sending it to the secondary pump. This would have its own drain right before the second stage."

I have a setup with an intercooler. To protect the second stage from water
I have (2) covalence filters with auto drains before the second stage, in case one fails.
Overall I would not do it again. You gain approx. <10% more efficiency, cooling to ambient, but the cost is prohibitive. As to the water removal, an aftercooler is more efficient at removing water as the higher the air pressure the less water air can hold; doesn't matter if cooled to ambient or 33 degrees, you still get a good bit of water. If you still want to continue, I used a Hayden DB 1290 on a Curtis 5hp compressor, a DB 1260 would have sufficed. Considering less water will drop out with an intercooler per volume of air than an aftercooler, output from the compressor will still have a good bit out moisture in it ...you would still need an after cooler or other form of moisture removal.

 

[brianpgriset]

Love how this thread keeps coming back. Fyi my setup way back on page 8 is still going strong and has maybe another 30 hours run time on it no issues.

Funny to think how things have changed in 8 years...

 

[alabamatoy]

The one I made so many years ago (pics in post #87) is still going strong, even after a move across state lines.

 

[tunerwithkids]

Keeping this 13 year old thread going!!!
I did my DIY Aftercooler using a Derale 15300, great affordable addition to my setup. Initial empty to full 60 gallon run saw peak temps of 200F at compressor discharge to 75F at tank inlet. Nice delta T for a $60 fin cooler, if you ask me.


Zip tied Derale 15300 to pulley shroud to use the natural pulley fan draft. I used this from Amazon: https://www.amazon.com/Derale-15300-Tube-Cooler-Core/dp/B004XONT3E


had to do a 5/8 to 1/2 step down compression fitting (no flare fittings in this size step down). These flares are pretty hard to find locally, I had to order a package but price wasn't bad. https://www.amazon.com/LTWFITTING-Compression-Reducing-COMPRESSION-FITTING/dp/B00CHHZU6I



Used 1/2” aluminum bendable tubing, slightly cheaper than copper. I got the tubing from here: https://www.amazon.com/Allstar-ALL40185-Diameter-Aluminum-Coiled/dp/B006K8JJN0


Used the THB aluminum 1/2” water separator with auto drain everyone is raving over these days. I used this one: https://www.amazon.com/Particulate-Filter-Moisture-seperator-Automatic/dp/B017GIGQOC


Used 1/2” flares into the 8AN males on the Derale 15300. Fits no issues. These fittings can be found at local big box home stores.


used a secondary water separator(dual) with regulator for output air. I bought this prior to learning about the Aftercooler. Used a Tekton 3’ rubber 1/2” fitting jumper line for output to this filter. These are the the items I used:
https://www.amazon.com/NANPU-DFR-04-NPT-Drying-System/dp/B07Z5Q52DN
https://www.amazon.com/TEKTON-46362-2-Inch-3-Foot-Rubber/dp/B00Z1K6YS6

Full DIY video on YouTube:

 

[dkmc]

Keeping this 13 year old thread going!!!
I did my DIY Aftercooler using a Derale 15300, great affordable addition to my setup. Initial empty to full 60 gallon run saw peak temps of 200F at compressor discharge to 75F at tank inlet. Nice delta T for a $60 fin cooler, if you ask me.


That's a pretty amazing temp drop with just the air movement from the flywheel fan.

 

[ufi911]

Keeping this 13 year old thread going!!!
I did my DIY Aftercooler using a Derale 15300, great affordable addition to my setup. Initial empty to full 60 gallon run saw peak temps of 200F at compressor discharge to 75F at tank inlet. Nice delta T for a $60 fin cooler, if you ask me.


Zip tied Derale 15300 to pulley shroud to use the natural pulley fan draft. I used this from Amazon: https://www.amazon.com/Derale-15300-Tube-Cooler-Core/dp/B004XONT3E


had to do a 5/8 to 1/2 step down compression fitting (no flare fittings in this size step down). These flares are pretty hard to find locally, I had to order a package but price wasn't bad. https://www.amazon.com/LTWFITTING-Compression-Reducing-COMPRESSION-FITTING/dp/B00CHHZU6I



Used 1/2” aluminum bendable tubing, slightly cheaper than copper. I got the tubing from here: https://www.amazon.com/Allstar-ALL40185-Diameter-Aluminum-Coiled/dp/B006K8JJN0


Used the THB aluminum 1/2” water separator with auto drain everyone is raving over these days. I used this one: https://www.amazon.com/Particulate-Filter-Moisture-seperator-Automatic/dp/B017GIGQOC


Used 1/2” flares into the 8AN males on the Derale 15300. Fits no issues. These fittings can be found at local big box home stores.


used a secondary water separator(dual) with regulator for output air. I bought this prior to learning about the Aftercooler. Used a Tekton 3’ rubber 1/2” fitting jumper line for output to this filter. These are the the items I used:
https://www.amazon.com/NANPU-DFR-04-NPT-Drying-System/dp/B07Z5Q52DN
https://www.amazon.com/TEKTON-46362-2-Inch-3-Foot-Rubber/dp/B00Z1K6YS6

Full DIY video on YouTube:

Great write-up. Helped me find everything I need. Thanks!

-Johnny

 

[rebelranger]

So I just completed this on my compressor. Derale cooler, 1/2 stainless lines, auto drain, and a couple brass connectors.

Bending stainless lines is pretty difficult to bend smoothly tight, but between everything turned out already.

 

[308guru]

Why do you need to install an aftercooler? Do you have a particular application or need for one?

 

[logixjock]

Why do you need to install an aftercooler? Do you have a particular application or need for one?

It helps condense the moisture out, basically a frugal man's version of a refrigerated air drier.