Does the air compressor need to be drained

You don't need to drain a drop every time, but drain it until you can't see obvious water.

First say why traditional air compressor drainage. After the air is compressed, the water vapor inside will become condensed water, which will sink to the bottom of the gas tank or separator. If it is not drained, the water will accumulate more and more, and finally run into the air-using equipment with compressed air, resulting in rust of pneumatic tools, instrument failure and product contamination. Therefore, drainage must be done, but there is no need to pursue absolute drainage. It is enough to drain the water at the bottom below the lowest water level, leaving a thin layer of water film.

Then when must it be completely arranged. Be sure to clean before stopping. Because the temperature drops after the machine stops, the residual water will condense again. If it is not drained, the water will be directly brought into the pipe network when the machine is turned on next time, causing water to be brought in the first breath. In addition, if the ambient humidity is extremely high and condensate is generated quickly, and the water level is found to have reached the warning line during the inspection, then don't wait and drain it immediately.

When the water-lubricated air compressor is involved in the work, the logic of drainage is not the same. The water-lubricated air compressor uses clean water instead of lubricating oil. The water forms a water film inside the machine to reduce friction and seal gaps. The compressed air-water mixture is separated and the water is recovered for recycling. Therefore, its water is the working medium, not the waste liquid, and cannot be completely discharged. What needs to be discharged is the excess condensed water separated from the air. This part of water is separated from the circulating water and should be discharged from the drain valve regularly. However, the part of the water involved in lubrication and sealing inside the machine must be retained, and only the separated one will be discharged when discharging. Never drain the water in the circulating water tank, otherwise the machine will have problems when running dry.

In short, the traditional air compressor drainage is to discharge waste water, which is as clean as possible but not serious. Water lubricated air compressor drainage is the discharge of excess condensed water, circulating water to stay. Either way, stopping the front row once is the most basic operating habit.