4WRTE16W6-200S-4X/6EG24K31/A1M

The 4WRTE16W6-200S-4X/6EG24K31/A1M valve is manufactured by Bosch Rexroth and belongs to the 4WRTE Directional Control Valves series. It meters and directs hydraulic flow in automated machinery where precise actuator control is needed. With a nominal size of NG16, the valve interfaces with medium-frame manifolds without excessive pressure loss. The recommended maximum flow of 460 l/min prevents spool instability while allowing high throughput. A working pressure limit of 350 bar at ports P, A, and B permits use in high-pressure circuits common in presses and injection molding equipment. The external tank port can sustain up to 250 bar return pressure so back-pressure-sensitive actuators remain stable. A static limit of 10 bar at the y drain port protects the pilot stage seals from overload. Commanded pilot oil flow ranges from 0 to 14 l/min, delivering proportional spool movement across the full control span. The ISO 4401-07-07-0-05 porting pattern aligns the body with standard subplates, simplifying installation. To preserve spool clearance and accuracy, the hydraulic fluid must meet cleanliness class ISO 4406 18/16/13.

Electrical features support continuous closed-loop operation in harsh environments. A 24 V DC supply powers the integrated electronics, providing a stable source for the position sensors and coils. The K31 plug per DIN EN 175201-804 offers a sealed multipole connection that speeds replacement without rewiring. Command signals are accepted through a ±10 V analog interface labeled A1, enabling direct coupling to common motion controllers. Two position switch outputs give discrete feedback for end-to-end monitoring, and a maximum switching delay of 15 ms keeps feedback synchronous with fast cycles. The valve can operate at a 100 % relative duty cycle, allowing indefinite on-time in continuous processes. Coil insulation tolerates temperatures up to 150 °C, which mitigates overheating during prolonged energization. An IP65 protection class blocks dust ingress and water jets, so the assembly can be mounted on exposed machinery without auxiliary enclosures.