4WE6D6X/EG24N9DK35LSO407 AN

The 4WE6D6X/EG24N9DK35LSO407 AN directional spool valve belongs to the WE Directional Spool Valves series and is produced by Bosch Rexroth for hydraulic automation, where it routes flow between actuator ports under electrical control. It uses a size 6 (NG6) envelope so it fits manifolds and subplates designed for that footprint. An ANSI B93.9 porting pattern simplifies installation in North American systems by matching standardized port locations. The valve withstands a maximum operating pressure of 315 bar at ports P, A, and B, allowing it to work in high-pressure circuits without external pressure reducers. A direct-current flow capacity of 60 l/min defines the upper limit of actuator speed that can be achieved through the metering orifices. Acceptable fluid viscosities range from 2.8 to 500 mm²/s, which covers most mineral-based hydraulic oils used in mobile or industrial machinery. NBR seals permit hydraulic fluid temperatures between –20 °C and +80 °C so the unit can operate in cold starts and moderate heat without leakage. ISO 4406 cleanliness class 20/18/15 is required to prevent spool sticking and excessive wear. The assembled valve weighs 1.95 kg, permitting manual mounting without lifting tools.

The solenoid assembly is energized from a 24 V DC supply, making the valve compatible with common control voltages in mobile equipment and factory automation. A voltage tolerance of ±10 % ensures reliable shifting even with minor supply variations. The coil draws 8 W during steady state, limiting heat generation and reducing power demand on the electrical system. Continuous operation is supported by a 100 % ED duty cycle so the spool may remain in an actuated position indefinitely without overheating. During rapid cycling, the design allows a maximum switching frequency of two shifts per second, which protects the magnetic circuit from thermal overload while still meeting typical machine response times. Under rated conditions the coil surface temperature will not exceed 85 °C, preventing damage to adjacent wiring and insulation. Return-line capacity is defined by a maximum port T pressure of 210 bar; staying within this limit avoids back-pressure-induced forces that could delay spool return and ensures predictable valve performance.