Auto cleaning filtration systems have a filter housing, a strainer element, a scrapper mechanism, supports and required accessories. Unfiltered fluid enters through inlet. Impurities are deposited on the interior surface of the filtration screen of the strainer element and filtered fluid exits at the outlet. When the strainer element requires cleaning (based on time set with fully automatic control or selected manually with semi-automatic control), the gear motor rotates the brush aligned with the inside of strainer element, wiping the media clean of concentrated solids.

The debris fall towards bottom of the housing and eventually get removed from the flow path by opening of the drain plug for purging. For filters with automatic purging, this operation occurs automatically at pre-determined differential pressure or time intervals. This cleaning process happens while the filter remains in service, thereby maintaining process efficiency and reducing loss of valuable product.