Piston Filter

The liquid enters from the bottom inlet and flows through the filter element from in to out. During filtration operation the solids are deposited on the inside surface of the filter media which slowly increases the differential pressure between inlet & outlet.

When the desired ΔP set in the PLC system is reached the automatic cleaning cycle starts functioning. During the cleaning cycle the drain valve opens & the piston movement is actuated.

Due to the local pressure drop generated during this procedure the contamination will be sucked off aggravated by the backflow of the filtrate in the opposite direction. The cleaning operation is very fast. It uses the filtrate for cleaning purpose. The frequency of the cleaning procedure depends on the contamination level of the inlet liquid. The filter is user friendly, compact & is very low maintenance.