How does an auto compressor drainer work?


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Old 11-04-05, 07:20 PM
Torino
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How does an auto compressor drainer work?

How does an auto compressor drainer work? Does it drain the air or just the moisture?
 
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Old 11-04-05, 08:21 PM
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Torino,

There are two types that I know about.
An inexpensive one that looks like a small brass valve mounts on the bottom of the tank and releases moisture when you shut off the compressor and the pressure drops to less than 5 psi.
Better ones have a float and release water when the level in the float chamber rises and trips a valve.
Once the water is gone the valve closes.
 
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Old 11-05-05, 08:15 AM
Torino
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Do they drain the air out or just let the moisture out? Mine seems to come on for a split second. Is is ok to live the air in the tank for a long time?
 
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Old 11-05-05, 11:16 AM
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Torino,

That's how they are supposed to work.
If it lets the air out when the full pressure is on the tank then you have the float type.
It is also ok to leave pressure in the tank and is more efficient because it's a waste of energy to release the pressure and then build it back up next time you use it.

Are you able to find a link to the drain valve you have?
 
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Old 11-06-05, 08:00 PM
Torino
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No, but if it is only suppose to go on and off quick it must be working right.
 
 

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