Compressor Regulator, line size and pipe set up - Hot Rod Forum : Hotrodders Bulletin Board
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Old 12-07-2012, 12:25 PM
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Compressor Regulator, line size and pipe set up

I just bought a kobalt 80 Gallon single stage 5 HP compressor. Here are the specs:

Air Delivery SCFM @ 40PSI 17.3
Air Delivery SCFM @ 90PSI 16.1
Horsepower (HP) 5.0
Tank Capacity (Gallons) 80.0
Tank Type Stationary
Air Compressor Voltage 230

Im looking to run all air tools, from sanders, ratches, paint guns, cut offs, ect..

Ive been reading about regulators and preassure drop and im thinking that ill go with a 1/2in line, is the to big? I dont want to loose performance from restriction, but i dont want to go to big.

Now once i get the line size down, i can get a regulator. Some people hate the Harbor Freight ones, some say they are fine. I want something that will last and is rebuild-able and is not overly expensive. Im, also looking for a filter/dryer. whats the difference between a combo unit? The dryer just drips the water from the bottom correct, and a filter has a micron filter for particles right?

Next im looking at using this plumbing sechematic:



Will this be to much/needed/to little?

Thank you for looking at this, i just want to learn the differences between the units and under stand how they work.

Thanks,
Ryan

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Old 12-07-2012, 12:32 PM
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What you show n the pic will work just fine..be sure and make a good length of run in your line so the air is cool when it reaches the air/water separator so that can work..1/2 inch line is what most use..

Sam
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Old 12-07-2012, 03:09 PM
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air lines

There has been a lot posted here on hotrodders about plumbing in air systems, I have about 140 Ft of 1/2 Copper pipe in my shop. when I run a pipe along the wall it slops down to a drain at the end ..I put in a T with the outlet pointing up for the drop. plumbed with a upsidown U so the air goes up over then down with the snap fittings. that way any water will tend to run down the pipe to the drain. There was a tip posted a while back about using an old propane tank with new fittings added , Fill the tank with kitty litter and run the air thru it to absorb any moisture. I have the pieces, just need time to weld it up for the Plasma air supply.
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Old 12-07-2012, 06:39 PM
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Alright I just finished my pipe set-up, and now looking for regulator, filter and lubricator. Should i get a filter, dryer or just a filter? Any recommendations for a good quality brands. Ive been looking at a SMC (www.SMCUSA.com) on ebay that is 140 ( filter, regulator lubricator), Arrow and TP tools. Any input on those brands?

I like the idea about the propane tank, i just don't have the room. Im also worried about pressure drop, i was not excited about the piping that i just made but i also dont want water problems when painting.
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Old 12-07-2012, 06:46 PM
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Just finished




After a little 220 and steal wool ( waiting until i get the regulators and ect. before i polish it up. its aluminium too, to help with cooling.)




whats a good quality 1/2 hose and re tractor reel?


Onemoretime, i was going to get a 3 foot hose from the compressor to the piping, is that not enough (keeping in mind i don't want to loose to much pressure with a long line)
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Old 12-07-2012, 07:16 PM
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one will not lose pressure with a long line once you are hooked up you will see the same pressure everywhere in the system..the airout of the compressor is hot and needs to cool so the air/water seperator works as it only works on water that is liquid and not in the vapor form..I have a 100 feet of line between the compressor and my air/water seperator. I use one of the small dessicant inline filters after the filter regulator as a tattletale as they turn blue if any moisture is getting through..mine works fine on my plasma and for painting..

Sam
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Old 12-07-2012, 08:28 PM
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filter regulator.

I have a couple filter regulators. with air snap fittings that are portable. I don't run the air thru the filter reg when just using air for blowing chips when using the lathe, Mill or wood working equipment . I have a Harbor freight auto water drain plumbed with a T and manual drain todrain the compressor tank , My compressor is up in the air 8 ft high in a corner on a 4 X 4 Ft hanging from the roof, platform
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