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Old 06-08-2006, 03:47 PM
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compressor setup

My cousin moonlights finishing custom furniture. His spray area is his garage.
His compressor is an ancient Kellogg-American - maybe 9 cfm. Me mainly sprays Dupont and PPG clears. He has a Sharpe 606 water trap connected directly to the the sixty gallon compressor tank and a Motorguard filter connected to the Sharpe by a five inch long pipe. A twenty foot long 3/8" rubber hose is connected to the Motorguard with an Iwata at the other end of the hose.
He sprays anytime the temperature is warm - 75 to 95 degrees, humidity be damned. When he drains his compressor, water pours from the tank. When drains the Sharpe, water shoots out of it. And with this setup, he sprays near perfect finishes. How is this possible?

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Old 06-08-2006, 04:51 PM
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It's not really the compressor.
The 3 critical factors that give him the edge are

1) ideal conditions
2) ideal products
3) ideal experience

The spray anytime (often) part is key as well,

There is perfection even though it starts as simply just a goal..
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Old 06-09-2006, 07:10 AM
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Sounds like everything is working really well.
The trap is doing its job collecting the water like it's suppose to.
It's when they don't have any water in them you need to
be suspicious.
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Old 06-09-2006, 10:00 AM
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Nothing at all mysterious here the low CFM capacity of the pump(maybe 9 CFM?)feeding the 60 gallon tank, which is a large tank for a pump that small, will allow the air to cool inside the tank that is why he collects so much water in the tank itself and also why the collector is working ok while located so close to the tank. Since he is spraying funiture he probably rarely uses the gun for extended periods of continues use thus the compressor has time to recover and this would explain the HVLP gun, assuming it is HVLP, working ok on such a low CFM rating. If it is a conventional gun then the air requirements are low enough for this to work normally. I seriously doubt this setup would perform satisfactory in an auto body paint situation since the air requirements would be much higher and the normal problems associated with this, such as moisture and loss of pressure, would then occur.
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