Air Pressure Multiplier

[encantotom]

i have been looking at some kind of case to put it in, but i just keep it in a small box. the case would take a ton more space.

i love to make things complicated, but in the this case, just the unit and the fittings is more than enough to please me.

later

tom

[zcasa]

yeah, I just place mine on top of my tool box. I probably should be more careful with it, maybe some bubblewrap or something. I am happy, though, that in checking the tires before every major trip they rarely need any air.

David

[Richard and Rhonda]

Yep, I saw that about a year ago.

The device on the outlet side is definitely a high pressure pop off valve. You could pull on the ring to relieve the pressure, but after a couple of times of doing that it will no longer seal. The seats are not made to function as on off shutoffs.

I do not know what the other device on the inlet side is. I would suspect as you, some sort of moisture/particulate trap.

[fulltiming]

Appears to be a 200 psi safety pop off valve on the output and shut off valve but it looks more like a pressure control valve rather than a dryer on the input side. Not sure why they think it is important to have a safety pop off valve on the output since the output pressure is adjustable with the knob on top of the regulator.

[folivier]

WOW!
I just finished airing up my tires with this lil' jewel!
If you go over 105# you need this device.

[fulltiming]

Just added a filter/water separator to mine. Connected my short hose to the input of the separator. On the separator output, I used a 1/4" MIP-FIP Street Elbow, then a 1-1/2" nipple to another 1/4" MIP-FIP Street Elbow going into the Pressure Multiplier's input. I have a female quick connect on the Pressure Multiplier's output. I will add a photo shortly.

Photos have been added to the post 4 below this one

[folivier]

If you use it only with the coach air system, is an air dryer necessary since the coach has an air dryer?
Inquiring minds want to know.

[fulltiming]

Necessary, not if you have good working separators on both the engine air compressor and the auxiliary air compressor(s). I used mine for several years without one. However, even with the separators on mine, I still get some moisture in the tanks so another separator can't hurt.

[Wally Arntzen]

Diddo's to Mike, I have a water seperator on the exit side of my 110 air pump and still get water in the first tank. Moisture will ruin the air multiplier pretty quick in my opinion.

[fulltiming]

Here are the photos of my plumbing with the air filter/water separator on the input side of my air pressure multiplier.

[Richard and Rhonda]

To add a little more detail, and I'm sure Michael knows when, Newell used a water separator for some time, and later adopted a water dessicant cartridge.

The separator is aluminum finned and about 5 inches in diameter and close to two feet tall. Ok, don't go out and measure it, I just worked on one, one time. The separator literally has a ball of stainless steel wool in it to coalesce the water vapor. The fins are to cool the air and help the water condense. This was good technology at the time, but it has been superseded.

The later setup actually passes the air through a dessicant cartridge. I have that setup, and have never drained one drop of water from any of my tanks.

So the answer to the question, do I need a separate moisture filter depends on what type of water separator you have in your coach.

[zcasa]

Hey Richard, are these water dessicant cartridges easy to install? Sound like a very good way to go.