4WRZE10E85-7X/6EG24N9ETK31/F1D3V

The 4WRZE10E85-7X/6EG24N9ETK31/F1D3V is a proportional directional valve built by Bosch Rexroth for the WRZ Proportional Directional Valves series and is intended to meter flow and direction in hydraulic automation circuits. With a size 10 body, the mounting envelope matches medium-capacity manifolds. A nominal flow of 85 l/min at a 10 bar differential defines the maximum volume it can route without exceeding rated pressure drop. The ISO 4401-05-05-0-94 porting pattern aligns the valve with standard subplates for quick interchangeability. A 24 V DC supply voltage energizes the solenoids that shift the spool. The command input of 4–20 mA provides a proportional control signal that maps directly to spool position. A maximum operating pressure of 315 bar allows the main stage to function in high-pressure lines commonly found in industrial presses. Internal pilot oil supply removes the need for an external feed line, while internal pilot oil drain returns pilot flow to tank without extra plumbing. The weight of 8.0 kg influences handling during installation and supports secure fastening on the subplate.

The pilot valve is size 6, giving the upstream stage adequate capacity to move the main spool quickly. A dedicated pressure reducing valve, model ZDR 6 DP0-4X/40YM-W80, holds pilot pressure at a stable level to maintain consistent actuation. The electrical connection follows DIN EN 175201-804, so the coil terminals mate with common industrial connectors. Continuous operation draws up to 1.8 A, which informs power supply sizing. A power pulse current of 3 A is permitted for brief periods to overcome static friction during spool shift. The coil winding is rated for temperatures up to 150 °C, protecting the valve against heat generated by high duty cycles or nearby machinery. A concealed manual override lets maintenance staff reposition the spool when power is absent without exposing the knob during normal service. These characteristics support precise directional control in closed-loop hydraulic axes.