4WE6J5X/BW120RNVP1Z2

The 4WE6J5X/BW120RNVP1Z2 directional spool valve is manufactured by Bosch Rexroth within the WE Directional Spool Valves series. It shifts hydraulic flow paths on a D03 manifold platform, identified by the ISO 4401-03-02-0-05 mounting interface, to automate cylinders and motors. An AC solenoid rated at 120 V 60 Hz drives the spool, and the ±10 percent voltage tolerance protects against minor supply fluctuations. The coil draws 0.45 A under nominal conditions, demanding 220 VA at switch-on to overcome static forces and only 50 VA to hold the energized position. Continuous energization is possible because the solenoid carries a 100 percent duty cycle (S1) rating, and electrical cycling can reach two actuations per second on AC power. Fluid cleanliness must not exceed ISO 4406 code 20/18/15 to prevent wear of the precision lands. The dual-solenoid assembly weighs 1.95 kg, a consideration for mounting supports and stack height in compact power units.

The valve passes up to 60 liters per minute when it is energized by an AC coil and up to 80 liters per minute when a DC coil is selected, so circuit designers can match flow capacity to the control voltage present in the machine. Working ports A, B, and P tolerate continuous system pressure to 350 bar, enabling the unit to control actuators in high-pressure hydraulic power packs. The T port handles 160 bar on AC configurations and 210 bar on DC configurations, permitting operation in return-line systems that run at elevated back pressure without risking seal damage. These limits define the safe operating window for forward, reverse, and tank lines. Mean time to dangerous failure is calculated at 300 years, which provides a quantitative basis for safety integrity level evaluations and supports preventive maintenance planning. By combining high flow, high pressure capability, and extended reliability in the same D03 envelope, the component maintains compact dimensions while delivering consistent motion control in automated production cells.