Patent ID: 8096321

Claim:
An electrohydraulic valve assembly, comprising: an inflow channel P, a working channel A and an outflow channel T; a first valve device having a first valve piston, a first control installation, and a first magnetic regulating device for applying a regulated activation force to the first valve piston; a second valve device having a second valve piston, a second control installation, and a second magnetic regulating device for applying a regulated activation force to the second valve piston; wherein the first and the second valve devices are arranged in parallel to each other, so that by means of a positioning of the first valve piston and/or the second valve piston a hydraulic connection between the inflow channel P and the working channel A and/or the working channel A and the outflow channel T can be created, or such a connection can be closed; wherein in operation either the first valve device or the second valve device is active and satisfies the function of the electrohydraulic valve assembly, the respective other valve device being passive; wherein in case the control installation of the until then active valve device detects an error, it activates the until then passive valve device and deactivates itself; wherein in case the control installation of the until then passive valve device detects an error, it activates itself and deactivates the until then active valve device; wherein the deactivating of one of said valve devices comprises a valve piston of the respective valve device moving to a hydraulic neutral position by means of a second stage for each of the first and second valve devices, wherein the second stage comprises an actuating element for moving the valve piston, wherein each said actuating element is separate from the first and second respective magnetic regulating devices.