Filter Question

[orf]

Just got a DeVilbiss CAMAIR QC3 filter that I'm hooking up in my compressor run. First off, the notes say I must have this 25 ft. from the compressor...well, I'm maybe 20 feet. I do have a riser and a water drain before the filter. Think I'll be okay?
Also, I didn't realize this thing says max pressure of 150. My compressor is factory set at 175 (can't dial down - it's got the silicone dap deal over the adjuster - don't want to mess with it). Think I need to stick my regulator before the filter? For air tools, I set it at 125 and leave it. I'd really rather run it after the filter, but don't want to kill this thing.

 

[JASTECH]

I too would like to know, I made a coupler hook-up for a small air/water filter for my 2 portable comp's. But according to the 25' thing mine won't do any good? I bought a Husky from Home Cheapo and one from our farm supply and they look about the same. What is a good one to get for my 2 portables? And my shop comp I will get info off for your assistance. This is the best site I have located!

Thanks, JASTECH

 

[930dreamer]

I'm in the same boat. I have a water filter with a 150 psi limit, but don't want to put the regulator before the filter. You could turn down the cut off limit. A long run of metal/copper air line will allow the air to cool making it easier for the water to be removed. I ran about 60 ft of black pipe.

 

[tweety652]

at the plant i used to work at, every machine and external hose reel had a filter-seperator/regulator/oiler set-up....this was you could filter the air and get out the water, regulate the pressure needed and then add the proper amount of oil need for the particular piece of equipment.

 

[orf]

Any other opinions? I know the line length isn't ideal, but I hope it works for catching most of the moisture at this short distance.

Also, going to put my regulator after the filter even though it is only rated to 150. I'm assuming they mean 150 constant pressure and not holding pressure (like a ball valve - 150/600). Thoughts?

 

[930dreamer]

You shouldn't need the working pressure any higher then 90 psi on the regulator. If you get water from your tool exhaust you know you still have a filter issue. Some GJ members have built copper pathway in a big rectangle for the air to cool in, check in the "show your compressor post" for pictures.

 

[JASTECH]

So my AirCat 1/2" impact reccomends 90-125psi. I should set my working pressure to 90? I "thought" the more pressure the more pwr? But my portable Rigid is like 4.7 cfm, so I have the WP set to 125psi. Am I doing this all wrong? I have been using hand tools with breaker bars and pipe on the end if needed for 30+ yrs. This air tool stuff is new to me. I had surgery on both shoulders so not much strength left in them and hoping air tools will help me.

Thanks, JASTECH

 

[930dreamer]

I have 150 psi from my compressor tank, I only need 90 psi for the air sander, so I set the regulator to 90 psi. You can adjust for each air tool your using.

 

[orf]

Okay. Here's what I did. I found a cheap Speedaire regulator and stuck it immediately after the compressor. Got it dialed to its limit (150), so my filter should be fine. Stuck my regular good regulator after the filter (at 125). I just hope this isn't putting undo stress on my compressor, factory 175 regulator switch and/or my motor.