The role of the filter: The filter is a small device that removes a small amount of solid particles in the liquid. It protects the normal operation of the compressor, pump, instrument and other equipment. When the fluid enters the filter cartridge with a certain size filter, the impurities are Blocked, and the cleaned filtrate is discharged from the filter outlet. When cleaning is required, the removable filter cartridge can be taken out and refilled after processing. Therefore, it is extremely convenient to use and maintain. Garbage debris in pipes often causes damage to equipment, such as scale, rust, composite sealants, cinders and other solid particles, which may enter the piping system. To prevent the adverse effects of fluids containing dust and particles on the equipment, Filters are often used in pipelines. In order to prevent the pump from being invaded by construction waste left in the pipeline, a filter device can be installed upstream of the pump. The filter filters out solid particles in liquid or gas to protect the equipment from damage and prevent blockage. A filter is placed on the flow-through surface of the filter. When the liquid passes through, most of the impurities are blocked by the filter. The filter needs to be cleaned regularly to prevent clogging. The working principle of the filter: The filter is a filtering device that can decompose impurities in the medium, and has the characteristics of high efficiency, precise filter, full automation and easy operation. The filter uses a high-strength wedge filter to automatically clean the filter element by differential pressure control and timing control. When the impurities in the filter accumulate on the surface of the filter element and the differential pressure between the inlet and outlet increases to a set value, or the timer reaches a preset time, the electric control box sends a signal to drive the backwashing mechanism. When the backwashing suction port is directly opposite to the filter inlet, the drain valve is opened. At this time, the system is drained, and a negative pressure zone is formed on the inside of the suction cup and the filter core, which is lower than the water pressure outside the filter, forcing part of the circulating water from the outside of the filter. Inside the filter element, the foreign particles adsorbed on the inner wall of the filter element flow into the disk with water and are discharged from the drain valve. The specially designed filter screen creates a jetting effect inside the filter element and any impurities will be washed away from the smooth inner wall. When the pressure difference between the inlet and outlet of the filter returns to normal or the timer setting time is over, the material continues to flow during the whole process, and the backwash consumes less water, realizing continuous and automated production.