4WSE2EM6-2X/5B9ET315K17EV

The 4WSE2EM6-2X/5B9ET315K17EV is a servo valve in the 4WS Servo Valves series and is manufactured by Bosch Rexroth. It regulates hydraulic flow and pressure for automated motion control systems. The nominal size of 6 establishes the envelope and flow paths suited to compact machinery, while the ISO 4401-03-02-0-05 porting pattern aligns with common subplates for straightforward installation. A nominal flow of 5 l/min sets the reference output that the control loop can rely on for predictable actuator speed. The valve withstands a maximum operating pressure of 315 bar so it can be placed in high-pressure circuits without additional pressure reducers. A static return flow pressure limit of 10 bar protects internal seals when oil returns to tank. Internal pilot oil supply and drain remove external pilot hoses, simplifying manifold layouts. Analog signal input is accepted to allow proportional command from standard controllers, and a maximum hysteresis of 1.5 % keeps position errors low during repetitive cycles.

An IP65 protection class shields the electrical section against dust ingress and low-pressure water jets, maintaining reliability in factory environments. The coil resistance of 85 Ω determines heat rise for the drive electronics, and a nominal coil current of 30 mA produces the magnetic force required to position the spool. When operated with an on-board electronics module, the valve draws 150 mA, a current consumption that guides power supply sizing. The module expects a ±15 V supply so standard industrial power rails can be used without conversion. Fluid cleanliness must reach ISO 4406 18/16/13 or better to prevent edge wear on the precision metering lands, and the design is intended for mineral oil conforming to DIN 51524 to guarantee material compatibility. Finally, a mass of 1.1 kg keeps handling uncomplicated during service swaps while still providing enough housing rigidity for stable dynamic response.