4WRKE16E200L-3X/6EG24TK31/A1D3M

The 4WRKE16E200L-3X/6EG24TK31/A1D3M is produced by Bosch Rexroth for the 4WRKE Directional Valves series. Designed for hydraulic automation, it meters and reverses flow based on electrical commands within closed-loop systems. A nominal size of 16 establishes port dimensions suitable for medium frame manifolds. Under a differential pressure of 10 bar the valve supplies a nominal flow of 200 L/min, while a separate limit of 460 L/min defines the maximum permissible flow when circuits demand short-term peaks. The metering element withstands 350 bar on ports P, A, and B so it can be installed on high-pressure lines without supplementary reducers. Proportional control electronics accept a ±10 V command or feedback signal, allowing integration with analog motion controllers. A 24 V DC supply powers these electronics and the position transducer. Response sensitivity at or below 0.5 % enables fine spool adjustment for small signal changes, and overall hysteresis is held within 1 % to maintain repeatable positioning during direction changes.

For cabinet wiring the valve uses a connector in accordance with DIN EN 175201-804, simplifying interchange with other Rexroth proportional devices. External pilot oil supply separates control pressure from main flow so the metering chamber remains responsive even when system pressure varies, while an internal pilot oil drain returns leakage directly to the tank side of the housing to avoid extra plumbing. Pilot oil flow of 8.5 L/min at 315 bar supports rapid spool shifts without overshoot. An inline pressure reducing valve, model ZDR 6 DP0-4X/40YM-W80, stabilizes the pilot gallery to maintain consistent actuation forces. NBR seals contain mineral hydraulic oils within rated temperature limits, and an IP65 protection rating shields the electrical housing against dust and low-pressure jets of water. The assembled unit weighs 11.2 kg, a mass that must be supported by the manifold or bracket when the valve is mounted in horizontal or vertical orientations.