4WE6R6X/EG24N9K4KSO21

The 4WE6R6X/EG24N9K4KSO21 directional spool valve belongs to the WE Directional Spool Valves series from Bosch Rexroth and is intended to shift hydraulic flow paths in automation manifolds. Its solenoid coil is designed for a nominal voltage of 24 V DC so the valve can be powered directly from common control supplies. At this voltage the coil draws a rated current of 1.25 A, enabling predictable load calculations for power distribution. The electrical coil dissipates 30 W, which determines the thermal balance inside compact valve stations. A duty cycle of 100% ED allows the valve to remain energized continuously without overheating, supporting long holding periods during machine cycles. Voltage tolerance of ±10% protects actuation performance when supply levels fluctuate. The connection is made through a DIN EN 175301-803 three-pin plug coded K4K, simplifying wiring and field replacement. The molded coil carries an IP67 ingress rating, so temporary immersion or high-pressure wash-down does not reach the windings. Because the valve can be installed in any position, designers have flexibility when stacking manifolds inside tight cabinets.

The hydraulic circuit characteristics are set by the remaining parameters. A cleanliness class of ISO 4406 20/18/15 is required to prevent spool sticking and maintain service life. A concealed manual override designated N9 permits local shifting without electrical power while avoiding accidental actuation; the override may be used up to 50 bar back pressure in the tank line. During normal operation the valve accommodates a maximum flow of 80 l/min, giving adequate capacity for medium-sized actuators. Pressure at ports A, B, and P can reach 350 bar, whereas the tank port is limited to 210 bar to protect return lines. Mounting follows the NFPA T3.5.1 D03 interface so the unit fits standard sub-plates, and the porting pattern matches ISO 4401-03-02-0-05 for interchangeability with other CETOP 03 components. Together these mechanical details ensure rapid replacement during maintenance and straightforward integration into modular manifolds.