Refrigerated air dryer question.

[RPayne]

I recently bought an Ingersoll Rand DRV140 air dryer on Craigslist. Typical Craigslist, no specs no model number just some crappy pics. There was nothing in the pics to get a scale off of so I had no idea how big it was. I paid the asking price and the guy brought it to me (love this bad economy).

YIKES! Its huge! 140CFM.

My question, for anyone who might be up on this .... Would it hurt this thing to run only say ..... 27 CFM through it? I have a normal 7hp/80gallon compressor. The inlet and outlet on the dryer are 1.25" pipe! Its only 115vac 1ph. so using it in my shop would be no big deal, I just don't want to kill it prematurely when I could flip it and get something a lot smaller.

Awaiting enlightenment.

 

[930dreamer]

Well you probably won't out grow that one. Trade it off for a smaller unit?

 

[pop pop]

140 CFM would be the max, rated at some pressure. Since you are under that, you'll be OK, but I'd be shopping around for a closer match, but only at minimal cost or use what you got. Smaller package would probably be to your liking!

 

[RPayne]

Here are some pictures.

 

[ket-tek]

That's one heck of a nice unit.

Curious as to how much you were able to pick this up for if you don't mind me asking?

 

[RPayne]

KT,
The guy was asking 300 and I paid him an extra 50 to deliver it. I took all the covers off and had it checked out, cleaned it up and put it back together. It was manufactured in 94 so its got some age on it but other than a compressor unit and a fan/condensor unit, theres not much to break. I thought it was a good deal.

 

[RPayne]

KT,
You were talking about the dryer right???

 

[ket-tek]

Seems like a good deal to me. Like you say as long as the compressor isn't seized and the system holds freon without leaking down, it should be just fine..

140cfm and 1.5 diameter piping is a monster, and you should be fine using much less your just not utilizing the full capabilities of the machine.

The newer NVC series that replaces the older models would cost you close to $3000 for the equivalent sized machine. The NVC series is a cycling unit which only runs when it needs to and will use much less power than the more common non-cycling units that run continuously.. I'm not sure if the DXR series you have is a cycling or non-cycling machine. I'd try to dig up a manual for the unit off the web if you can find it.

Ingersoll Rand Refrigerated Air Dryer, model DXR140. Rated 140 cfm at approximately 35 deg F at 250 psi. 1-1/2" NPT inlet/outlet. Built 1997.

 

[RPayne]

Had no luck so far on the manual. I can't find an archive on IR website, looks like they support newer models only. I have operated it, but not enough to hear a cycle. It has valving that would make me believe it cycled. But the valving could also make it so it doesn't cycle.

I was going to sell it but if you don't think it would harm it to run on such a lower PSI I will probably keep it. It does look really cool in my shop!

DXR140 Max. Inlet press: 250psi Max inlet temp: 130deg. min/max ambient: 40/120
115vac 1ph. 11.5 amps R22