4WRTE16E125L-4X/6EG24ETK31/A5M

The 4WRTE16E125L-4X/6EG24ETK31/A5M valve belongs to the 4WRTE Directional Control Valves series manufactured by Bosch Rexroth for closed-loop hydraulic automation. The NG16 size provides the flow area needed for medium-capacity actuators while keeping the envelope small. A linear flow characteristic lets the controller predict flow change directly from spool travel, which simplifies proportional regulation. A ±10 V command and actual feedback interface with an enable line accepts standard servo drive signals and allows an immediate shutdown path. The on-board electronics run from a nominal 24 V DC supply and tolerate any level between 18 and 35 V DC, protecting the system against brownouts. Peak current consumption of 1.6 A guides selection of fuses and power cabling. Connection is made through the DIN EN 175201-804 plug coded K31, reducing wiring time in multi-valve manifolds. Internal pilot oil supply and internal return remove the need for external pilot hoses, and spool position monitoring reports real-time displacement to the motion controller.

The sub-plate mounting pattern follows ISO 4401-07-07-0-05 so the valve can replace or share space with other NG16 components without redrilling ports. It tolerates operating pressures up to 350 bar on ports P, A, and B, making it suitable for high-pressure injection, pressing, or clamping circuits. Port T must remain below 10 bar static pressure, and the same limit applies to port Y, preventing back pressure from disturbing the pilot stage. An IP65 protection class shields the housing from dust ingress and low-pressure water jets, permitting use on open machine frames and test rigs. Total mass is 11.2 kg, which determines handling requirements during installation and the strength of the manifold bolts. Together these hydraulic, electrical, and mechanical characteristics let the valve serve as a precise directional element in demanding automated systems.