The Rexroth 4WEH22HD70/6AW120-60N9ESDAV hydraulic directional valve 4WE6D61/EW110 is a flow-control valve from Rexroth. It acts as the on/off or metering point in a piping or tubing run, controlling how hydraulic fluid passes through the circuit. It is commonly in hydraulic power units, pneumatic control panels, and industrial process piping.
