First, due to the screw air compressor suction natural contains impurities such as water and dust particles in the air, after compression screw air compressor in compressed air contains moisture, impurity particles, part of the lubricating oil will be because of the high temperature into a gas.If the above impurities of compressed air directly to the pneumatic system is used, can make the reliability of pneumatic device system is greatly reduced, and shorten its service life, increase the production cost of enterprises.
In addition, if the screw air compressor backend does not install the precision filter, compressed air is inhaled from the pipe wall off the rust on solid impurities, if these impurities in the direction of sliding valve clearance or pressure control valve seat, will cause bad action.
When the air temperature drops, the water is saturated.If the water enters the control loop and the element, it will rust the network system and parts, and wash away the lubricating oil film.Moreover, in special industries such as pharmaceuticals and food, the rules must be used to remove bacteria filters and deodorant filters.
Precision filter is the main function of screw air compressor compressed air of solid particles, tiny impurities such as dust, and the moisture in compressed air, oil mist there was a block effect, to be completely filtering of moisture in compressed air, need to be installed at the rear end of the precision filter, compressed air drying machine for processing.
