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Reply by EarlS

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Posted on Air Compressor filter/regulator & LVLP setup

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EarlS

4003 posts in 3227 days


#1 posted 02-23-2017 01:32 AM

Bill,

The humidity in the air is condensed out as a consequence of the compression. With little air compressors, the amount of water and heat from compressing the air should not be a significant issue. As long as you de-pressurize the air compressor occasionally and pull the drain out to drain any accumulated water you should be OK. Ultimately, the only water in the compressor comes from the humidity of the incoming air. On a normal day that shouldn’t amount to much. On a hot humid day you get a lot more moisture. A rule of thumb is that for every 10 degrees increase in temperature the air can hold 2X more moisture as humidity. Yet another reason for not spraying on a hot humid day. In a reasonably climate controlled environment this is a non-issue.

By compressing the air to a higher pressure then using a regulator to drop the pressure the air you are using will not be saturated with humidity. Also, water droplets in the air hose are a result from the condensed water in the receiver being carried into the hose with the compressed air which would also mean you are using a lot of air and it would be moving very fast to entrain the water droplets.

-- Earl "I'm a pessamist - generally that increases the chance that things will turn out better than expected"


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