The R901217156 SPOOL VALVE 4WEH16R7X/6EW230N9ETK4/B10 is a high-quality industrial hydraulic valve designed for reliable switching of oil flow direction. With a nominal size of 16 and symbol R, this original Bosch Rexroth product offers superior performance and local support through CreatX Technology SRL. Electric operation with a 230 V AC solenoid.