DIY Compressed Air Dryer 

do you have a parts list for all of this? that would be awesome if you could share! thanks :)

Great Job man!

I’m using a metal colander to dry the desiccant beads. Working well.

Awesome! I am going to make one for my first attempt at spraying a car

"Impact" does not affect the dew point unsess the speed of the air is fast enough to create enough friction to heat the air but that would raise the dew point. The steel wool or the windshield or your car removes heat from the air and lowers the dew point thus causes condensation (not the impact). The only time the water can cause gain or loss of energy is with a change in State, everapation, sublimation or the other way gas to liquid etc. that occurs because of the steel wool carrying away heat from the air with equal change in dew point then condensation occurs due to change in temp. the ideal way is exactly what occurs in the storage tank but only initially and that is the cooling effecy of the steel tank and also , initially the expansion into the tank and drop in partial pressure. However as the tank fills and there is no longer much of a pressure drop the only effect in the cooling from the tank. If you could continue the pressure drop with expansion but difficult to do because of the commulication of all the areas with equal pressure all thru the system to alter that you would need an expansion valve type system to maintain the pressure separation from the air behind but then you would have an analogous system to an Air-Conditioner.

Great video. I have one of those arriving today. While stumbling around amazon, looking for more air drop blocks for my Rapidair rig, I discovered something. Look up sintered bronze muffler. The perfect solution for both of your tube ends. No mods needed.

Wow! Great video. Looks like you have made the exact setup that I would like to have for my plasma table. Dry air is very important. Could you provide me with some info on where to buy and what model you used for the clear canister things?

The way to remove moisture is to cool it before it enters the tank from compressor and easily done,,,I did it by adding a 1/2 inch roll of coil copper tubing between compressor and tank,,, dropped my high 80 degrees and I have very little water in my tank now,,, and I never use plastic it becomes very brittle with time and can become like scratnel when it blows apart..

great video, Thank you, can you tell me manufacturer and model of the filter media holders?

nice,,can you tellus howmany pressure bein lost from source(compressor)till the end,,for example plasma cutter?'? I have original 2 festo water trap and from compressor to plasma cutter I m loosing more than 2 bar,,must raising on 9 bar compressor to have 6.2 on plasma cutter,,always lighting low pressure

I do tend to go on, the expansion valve type system would be great but you would need to have continuous consumption of the now dry air as storage would be difficult to do cuz you would tremendous amount of storage space because of the now deceased pressure thus you would need to re-compress the dry air then store it. Very costly and overkill. This is the exact same as an air conditioned system but using air not freon or ammonia gas but again not a recycled system so you run into the problem I discussed earlier that is the storage of the now expanded "dry" air but now loss of pressure thus the need for re-compresion. Nothing requiring the change of state or energy input is free. Your way , and a good way, as i am not knocking you setup, is using some of the energy from compression and giving up heat to the steel wool (which needs to be removed somehow or the system stops working) thus lowering the dew point and causing condensation. Man thats a long winded way to say that (lots left out I know).

Avesome video been looking for these bigger filter containers locally but no luck. Wouldn't be the first tank more effective if you reverse it's flow too? Bernoulli's principle and dew point control by volume change from small fast flow into wider higher pressure in the container should strip some water alone I think. Not sure tho.

It's called a slip by 1/2" or 3/4" MIP Adapter.

can you do a short video on how you installed your impact canister drain valve

where do you get these big descendant body kits?

Also I am sorry not trying to seem critical as I am sure it appears. I am just working on my own system and (obviously) very anal, and expressing my own ideas I have worked thru from refrigerated type to the passive types such as yours. My other point though not so obvious is that these passive systems will not work well for continuous use as the heat taken from the air to lower the dew point has to be removed somehow. passive conduction is fine in occasional use systems but for continuous use systems you need refrigerated systems to carry away the heat or llarge amounts of silica beads which need to be dried (energy use) and recycled. Sorry I will stop.

How often do you have to change / dry the desiccant?

Hello Mark, I am not finding these 20" filters that have the 150lbs rating. Can you suggest your manufacturer and supplier. I'd like to duplicate... Thank you love your video!!!

How large of a space are you servicing and what is the temperature?

Where did you get the water filters ?

I wonder if putting your beads inside a pillowcase (or similar) and leaving them in the clothes dryer would work. I'm looking for an alternative to using the microwave to dry mine.

What is with all the backwards flow users?

you will get rust particles going into your tools not a good idea way not use foam as your filter ?

And desicant pellets break down and do damage to tools and paint jobs.