Bosch Rexroth | 4WE6Y6XEG26N2K4K
4WE6Y6X/EG26N2K4K
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The 4WE6Y6X/EG26N2K4K directional spool valve is manufactured by Bosch Rexroth as part of the WE Directional Spool Valves series for controlling oil flow in automated hydraulic circuits. The valve is built to nominal size 6, a dimension that matches subplate interfaces commonly used in compact power units. It follows the ISO 4401-03-02-0-05 porting pattern so the body aligns with standardized P, A, B, and T passages. Under direct current excitation it handles up to 80 l/min so line sizing can remain moderate in medium-capacity machines. The pressure limit is 350 bar on ports P, A, and B, enabling use in high-pressure circuits, while the T port rating of 210 bar safeguards the return line. A continuous duty cycle of 100 % ED (S1) allows the coil to remain energized without forced cooling, drawing a nominal 30 W at rated voltage. Voltage may vary by ±10 % from nameplate without causing functional errors, and coil surface temperature is permitted to rise to 120 °C during sustained operation.
Hydraulic media must meet ISO 4406 cleanliness class 20/18/15 to prevent wear on the spool and bore. The electromagnetic assembly terminates in a K4K plug conforming to DIN EN 175301-803, providing a quick disconnect for maintenance. When this connector is fitted the enclosure achieves IP67, keeping dust ingress and temporary immersion from affecting the coil. A mushroom-style N2 manual override permits local actuation, and it withstands tank pressures up to 50 bar so maintenance checks can be done without de-pressurizing the reservoir. The design attains a mean time to dangerous failure of 300 years according to EN ISO 13849, supporting long service intervals in production lines. Meeting the specified cleanliness and ingress limits ensures consistent spool response throughout the valve’s expected service life.
Technical Specifications
Cleanliness Class
ISO 4406 (c) 20/18/15
Duty Cycle
100% ED (S1)
Electrical Connection
K4K (DIN EN 175301-803)
Ingress Protection
IP67 (K4K)
Manual Override
N2 (Mushroom Button)
Manual Override Max Tank Pressure
50 bar
Max Coil Surface Temp
120 °C
Max Flow (dc)
80 l/min
Max Pressure (p/a/b)
350 bar
Max Pressure (t Port, Dc)
210 bar
Mttfd According To En Iso 13849
300 years
Nominal Power (dc)
30 W
Nominal Size
6
Porting Pattern
ISO 4401-03-02-0-05
Voltage Tolerance
±10%
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