Why does water run out my compressed air line every time I turn the air on?
Water. This drives every compressed air user nuts!!! Every time they use an air tool, blow-off gun, or even fill the inflatable air mattress, water appears along with the compressed air.
The water is a problem if the compressed air is moving through a tool that can rust or be negatively affected by airborne particles, and, given enough ‘fill-ups and empties’ a significant amount of water will appear in anything which you inflate or run with compressed air.
Well, we know that relative humidity is the measure of water moisture in the air expressed as a percentage. At a relative humidity of 90% for example (really hot and sticky) the atmosphere is holding 90% of the total amount of water vapour it can hold. When the relative humidity in the air exceeds 100%, it usually rains.
That, unfortunately, seems to happen mostly on weekends! 🙂
Now, let’s take some of that atmosphere with it’s 90% relative humidity and compress it. What do we want the final air pressure to be; 30 PSI, perhaps 45 Pounds per Square Inch? We will use 45 PSI as an...