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….
Why care if there is water in your compressed air?
The process of compressing air generates free water, and increases air borne water vapour. If you are not sure about why this occurs, take a look at the article on this site entitled “Why does water run out my compressed air line?”.
Don’t use a needle valve to control your air cylinder speed!
Many industrial machines using compressed air as an energy source, use air cylinders or other pneumatic actuators to do the actual work….