The proportional directional control valve (10) has a single actuator (18), and a control piston (16) moved by actuator starting from first switching position in which working ports (A,B) of valve housing (12) are connected to tank port (T) of housing, via...

The unit has a valve device (40) i.e. spring centered and solenoid operated 4/3-proportional-formed way valve, that connects a pressure supply terminal (15) and a return port (16) with a piston space terminal (17) and an annular space terminal (18). A hydr...