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  • Double back-flush filter

    Double back-flush filterHYDRAULIcs & Mining Technology

    The DN25 double back-flush filter provides filtration of water or emulsion. This double filter consists of two filter elements and two ball valves that can be rotated in either direction by hand. Blocking one side results in the flow to the following filter element being blocked.

    At the same time the isolated filter element is released for back-flushing. The filtered medium flows through the isolated filter unit in the opposite direction and flushes any contamination away.


Pilot control

Electro-hydraulic pilot control

Solenoid valves

Pilot valves

Double NRV

Line NRV



Shut-off valve

Pressure-limiting valve

Rock-burst valves

Standard filter

Filter station

Double back-flush filter

Automatic double back-flush filter


Water-spray valve

Bottom valve

Pressure indicator

PR 116 Control unit

PR 116 active server

PR 324 control unit

Pressure sensors

Position sensors

Infrared sensors

Inclination sensor

Industrial PCs

Power supply units and lighting