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  • Double NRV

    Double NRVHYDRAULIcs & Mining technology

    The doubly pilot-operated DN10 non-return valve consists of two 2/2-way valve cartridges with nominal diameter DN10, a valve housing and a control piston to control the two cartridges.

    The 2/2-way valve cartridges operate on the seat and cone principle. In the 0 position they are closed and so no return flow is possible.

    The medium is pumped at pressure to consumer A or consumer B via connections.

    The doubly pilot-operated DN10 non-return valve is connected in such a way that when there is flow through one of the non-return valves, a control piston unlocks the other so that return flow can take place.


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