Air compressor filter pre pump.

[joebgd]

I know you guys should know. I want to put a moisture filter on my air compressor before the air enters the tank. I see in line filters for hoses after tank. I don't know what I would need to accomplish dry air in tank. Is there an intake before pump filter or after pump moisture filter? I'm not worried about the pump I just would like to keep moisture out of my tank and therefore moisture out of my tools. Or is an in line after tank filter best option. I get allot of humidity in the summer.
Any information you think would be helpful welcome.

 

[wannabridin]

Get a transmission cooler between the pump and the tank. The bigger the better, put it close to the cooling fan if possible. Put an automatic moisture trap before the tank & i even put one right at the regulator as well to help capture anything else. this will automatically release and moisture that builds up. My tank has no detectible moisture in it when i drain, even after long sessions...

 

[Jim]

Air going into the compressor contains water "vapor". Far as I know, there's no easy or cheap way to separate water vapor from the air.

 

[RC4MAN]

What's termed an FRL, Filter, Regulator, Lubricator assembly only removes a small amount. If you live in a humid environment, or if it happens to be raining or other method of raising the humidity then you will have some level of moisture problem.

 

[gggGary]

Air going into the compressor contains water "vapor". Far as I know, there's no easy or cheap way to separate water vapor from the air.

An air conditioner, "chiller". Dropping the incoming air temp will condense moisture on the cold exchanger.

 

[Jim]

An air conditioner, "chiller". Dropping the incoming air temp will condense moisture on the cold exchanger.

That'll get you down to about 30% relative. Still gonna have to deal with water on the other end. It would help, but that's a lot of effort/money to put in and still need separators on the outlet side.

 

[joebgd]

Allot of good information here thanks all. I was researching last night. I'm going to go with an in line water filter. Right as it comes out the tank. I didn't understand the brass screen acts as a moisture condenser, they also have ones that use moisture collecting beeds which can be dried and reused. I'm going to look for brass screen and sponge or paper filter combo. Unless someone can vouch for the moisture collecting beeds,

 

[Its been a long time]

Allot of good information here thanks all. I was researching last night. I'm going to go with an in line water filter. Right as it comes out the tank. I didn't understand the brass screen acts as a moisture condenser, they also have ones that use moisture collecting beeds which can be dried and reused. I'm going to look for brass screen and sponge or paper filter combo. Unless someone can vouch for the moisture collecting beeds,

Commercial air drier systems use the dessicant beads, it's very established technology. In industrial systems there's usually two dryers in parallel, one working and the other regenerating. They periodically swap over. For a home workshop, it's going to be a much simpler system.

 

[AUTOMAN]

Jim was on it.
Water vapor, in solution with suction air is the problem.
Not easy to remove without alot of extras.

Intake extras include, chilling and condensate removal.
Desicants that usually do not regens easily and need alot for the volume of airflow.

Vacuum that kills volume.(higher intake vacuum with drain/dessicant)

Moisture is in the air, so only 2 ways to condensate and remove.
Vacuum
Low temperature

cliff

 

[Grimly]

My air cooler, on the floor above the compressor. The outlet from the bottom goes to a vertical catch pipe of large diameter, with a drain on it. The air Tees off to the ring main around the shop.

Since installing it, I've not had a drop of water in my system. Not that it really suffered from it before, but I wanted to be sure.