Share your DIY Compressor Dry Air Intake Filter set up?

[Goldwing]

I'd like to put a moisture-removal system on the air inlet on my compressor and wondered if anyone has done the same?
I know it's important to do this on the output of the air to the airgun tank side but what have you come up with
Thanks
Why Not Pre Dry High Pressure Air When Filling Your PCP?

 

[Deleted 45061]

Sadly it will have little impact compared to the output.

 

[Centercut]

Sadly it will have little impact compared to the output.

Exactly.... Think about it. As the air is compressed water comes out of the air. One BAR equals one atmosphere, so the air going in is at 1 bar pressure. You are compressing this air to 310 bar (4500 psi). So, the air is compressed 310X greater at the outlet than the inlet. Therefore, the INLET moisture separator is 310 times LESS effective than the outlet moisture separator. The juice isn't worth the squeeze...
An inlet air FILTER is a good idea for the same reason you have one on your car...

 

[elwoodblues]

If you want dry air going into your compressor feed it low pressure Nitrogen and NO moisture will get in your gun or O2 or CO2

 

[Chickenthief]

Drying the inlet has little to no meaning, sorry.

Say you have 1% humidity left at the inlet, then compress atmosphere pressure 10 times to 145psi and you have 10% humidity.
Compress that 10 times to 1450psi and you are right at 100%. Not go for 3000psi and you are over 200% humidity. 4500psi and you are over 300%.
Food for thought.

What you need to do is remove water at the outlet!
Please look at diving compressors and the way they are built.
Nothing at the inlet and everything at the outlet. And they adhere to EN12021.

What is EN12021 and why do we Air Quality Test? | Blog | Breathe Safety

The quality of air from compressors can vary substantially and it is important to ensure that you are certain that the air being supplied is suitable to be supplied for breathing air purposes | Breathe Safety

www.breathesafety.com

 

[bigHUN]

I was running my YH with a desiccant inlet filter for several months in the beginning, it only dampened the sound on the inlet.
But first time I completely disassembled my Impact MK2 for cleaning and maintenance, immediately ordred a big orange dual stage from ali.
Running the separators like this for over a year, the first stage separates a decent amount of water and I have never seen anything coming out from second stage (which has actually an active carbon filter inside for breathing air, if to believe).

 

[rcs9250]

Drying the inlet has little to no meaning, sorry.

Say you have 1% humidity left at the inlet, then compress atmosphere pressure 10 times to 145psi and you have 10% humidity.
Compress that 10 times to 1450psi and you are right at 100%. Not go for 3000psi and you are over 200% humidity. 4500psi and you are over 300%.
Food for thought.

What you need to do is remove water at the outlet!
Please look at diving compressors and the way they are built.
Nothing at the inlet and everything at the outlet. And they adhere to EN12021.

What is EN12021 and why do we Air Quality Test? | Blog | Breathe Safety

The quality of air from compressors can vary substantially and it is important to ensure that you are certain that the air being supplied is suitable to be supplied for breathing air purposes | Breathe Safety

www.breathesafety.com

Yep. If intake air drying worked, the dive industry would have had it 50 years ago. Gotta believe the US Navy researched long ago.
Dwell time under pressure is what’s required.

 

[elwoodblues]

If you really want DRY air you can get reconstituted breathing air but if you going to breath it for long it will dry all your airways out it is made of 79.1 %Nitrogen and 20.9 % oxygen these 2 components make great air EXTREMLY DRY. Nobody wants to breath it for long Too Dry. I've been in the compressed gas biz for the last 45 years and ALL the air separation plants for AirLiquide, Airco, Praxair, AirProducts have tried to MAKE air from those gases, they all had to go back to Compressors with filters and some driers for breathing air, So breathing air is NOT really dry the filters are for all the enviromental elements that come from compressing air

 

[Healthservices]

I agree with the others, the key is doing it under high presure and that double stack water separator air dryier but if you want to see how dry this air really is, I think you could run the existing air twice. One time thru the compressor and the dryer/water separator then into the fill tank. Then again out of the fill tank thru the dryer water separator and into your gun. Crack open the water separator and see how much if any water comes out after that.

Allen

 

[Chickenthief]

If only it was that easy!
A true water expeller/seperator only works above some 150bar~2200psi.
So yes it works on the input side but not on the outlet side, sorry.