Automatic backflushing filter mainly consists of high quality carbon steel or stainless steel vessel, stainless steel wedge wire mesh with special structure, water flow guide valve, differential pressure controller, control box and sewage discharge device, etc. It is suitable for the filtration and separation of liquid containing small particle solids. The filter has the advantages of simple operation and high level of automation. The filter elements could be cleaned online with long service life.

The filter is composed of several groups of filter cartridges, differential pressure transmitter, Johnson Screen, under normal operation condition, the process media enter from the bottom into the cartridge, the media after filtration exit from the top of the cartridge. When the differential pressure between the inlet and outlet of the manifold reaches a preset value, the regeneration backwashing cycle is triggered. The differential pressure transmitter send out a signal, enabling the programmable controller output a signal to each valve. The filter is automatically cut off. The filter is flushed by the liquid filtrates in the opposite direction, and the filter element after backflushing then enters the normal operation condition. Filter elements will be cleaned in the same manner one group after another.