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Plumbing 2 oil-less compressors possible?

Travinsky

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Jun 4, 2014
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233
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Miami
Now that I am stuck with a 120 volt wiring, is it possible to plumb two of them together and get 12+ cfm?
 
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gdh33

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Sep 7, 2011
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Northern Ontario, Canada
Yes. Would need more details, make and model of compressors and any aftermarket regulators, pressure switches? what pressure do you want at the tools? Make sure each compressor has its own 120 V elec circuit. Then would just need to set up the pressure switches to start one at a higher pressure and if the pressure still drops then the second starts. Could go aftermarket or custom and have it so the compressors alternate as to which one starts first.
 

nehog

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Jaffrey, NH
It would probably work (though 6+ CFM compressors running on 120 volts are not common). You may need to adjust slightly the cut-in/cut-out pressures so both don't start at the same time, and stagger the initial startup.
 

bobcatdan

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Kaukauna,WI
Here is my 2¢, unless you are renting and are 100% stuck with 120, I'd at least get real numbers of running 220 to the garage. Two decent 30 gallon compressors cost wise should get you into 60 gallon if not 80 gallon price range. Also two compressors running at once is going to be noisey as hell. Once you have a real cost, you can go from there. I don't know which way will win. If sticking with two compressors, maybe I'm under thinking this, but just tie them togethet with a tee, then pull air from the tee. If the compressors are identical, I can't see how one would be dominant and should run about equal. Also if you get 220, think of the nice welder you can run:beer:
 
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muddinguy

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Nov 15, 2007
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Westland, Mi
Yes you can but the added volume is all you'll gain not cfm unless unless you're putting two compressors on one tank. Plus the compressors will have slightly different cut in/out and most likely the one will jump in and not give the other a chance to kick in unless you're really pulling air.
I've run this same scenario in my head before too and decided to skip it and wait til we bought a house that could wire my way and spend the money on a nice used 2 stage 80 or 60 gallon
 
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Travinsky

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Jun 4, 2014
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Miami
Thanks my friends for the response, I live in a rented house. The landlord won't give me permission to run 230 in the attic from main panel 75 feet away, so I am stuck with the 120 volt. I seen many videos like this one at the bottom, but was looking for clarification.

I was planning on getting an oiled Belaire 60 gal that does 8.3 cfm @40 and 7.1 @90. But I could get 2 of these cheaper oil-less HDs ( http://www.homedepot.com/p/Husky-33...c-Air-Compressor-C331H/203995169?N=5yc1vZc27p ) for the price of one Belaire.

According to the video below it would have 13.6 cfm @ 40 and 10.2 @ 90psi with 66 gallons. Tell me what you think.

 
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jeff000

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May 6, 2012
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437
What are you running that needs that much air in a rental property?

You could just get a 120v dual stage compressor and put it on a 80g tank or tie two tanks together. Storing the air at 200psi and having 160g of it would give you a lot of air output for a long time before showing a lack of air. Would take quite a while to fill though.
 

larry_g

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Apr 28, 2007
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oregon
Thanks my friends for the response, I live in a rented house. The landlord won't give me permission to run 230 in the attic from main panel 75 feet away, so I am stuck with the 120 volt. I seen many videos like this one at the bottom, but was looking for clarification.

I was planning on getting an oiled Belaire 60 gal that does 8.3 cfm @40 and 7.1 @90. But I could get 2 of these cheaper oil-less HDs ( http://www.homedepot.com/p/Husky-33...c-Air-Compressor-C331H/203995169?N=5yc1vZc27p ) for the price of one Belaire.

According to the video below it would have 13.6 cfm @ 40 and 10.2 @ 90psi with 66 gallons. Tell me what you think.


Your u-tube has it correct. Done it many times years ago when all I had was 2 or 3 portables. One thing I did different was where he shows the two plugs screwed together I screwed them into a ball valve so I could plug together compressors under pressure and then open the valve. Also as said above, you should probably have these compressors on separate electrical circuits as one circuit may not carry the load of two.

lg
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