Automatic drains are used to automatically exclude condensate from the lower part of the pipeline, oil-water separator, gas tank and various filter bottoms. Can be installed in the inconvenience of artificial sewage water places, such as height, low, narrow place. And to prevent the artificial drainage is forgotten and cause the compressed air to be re-contaminated by condensed water.
Automatic drainage inside an air bottle <is equivalent to a balloon>, anhydrous state, under pressure, the air bottle to block the outlet.
Water in the drainage in the accumulation, to a certain water level, the buoyancy is greater than the air pressure, the air bottle floating, drain opening, the water under the action of pressure discharge, while buoyancy decreases, air bottles drop blocking the drain.