Bosch Rexroth | 4WE6X6-6XEG24N9K4
4WE6X6-6X/EG24N9K4
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The 4WE6X6-6X/EG24N9K4 directional spool valve belongs to the WE Directional Spool Valves series manufactured by Bosch Rexroth for controlling actuator flow in hydraulic automation. Valve size NG6 sets a 6 mm nominal port area for compact circuits, and the D03 mounting pattern secures the body to standard subplates while the ISO 4401-03-02-0-05 port layout aligns pressure and work ports. A high-power wet-pin solenoid drives the spool with a 24 VDC supply; the coil draws 1.25 A in steady state and withstands switch-off transients up to 500 V. Maximum flow in direct-current operation reaches 80 l/min, supporting medium actuator speeds. The pressure limit is 350 bar on P, A, and B ports, with a 210 bar rating on the tank return to protect downstream plumbing. These hydraulic and electrical parameters give the valve dependable performance in high-pressure, high-flow machine tools and presses.
A 3-pole (2+PE) connector conforming to DIN EN 175301-803 simplifies wiring, and an IP65 enclosure shields the coil from airborne dust and low-pressure water jets. System fluid must meet ISO 4406 cleanliness level 20/18/15 so that spool clearances remain free of abrasive particles. For service tasks, a concealed N9 manual override permits mechanical actuation, though its use is limited to 50 bar back-pressure at the tank line. The design’s mean time to dangerous failure is evaluated at 300 years, providing a high reliability index for safety-related installations. Together, the connection method, environmental sealing, cleanliness requirement, manual control option, and reliability metric complement the hydraulic capacity outlined earlier and make the valve suitable for electrically commanded flow direction in automated production systems.
Technical Specifications
Cleanliness Class
ISO 4406 20/18/15
Electrical Connection
3‑pole (2+PE) DIN EN 175301-803
Ingress Protection
IP65
Manual Override
Concealed (N9)
Manual Override Max Tank Pressure
50 bar
Max Flow (dc)
80 l/min
Max Operating Pressure (p, A, B)
350 bar
Max Operating Pressure (t, Dc)
210 bar
Max Switch‑off Overvoltage
500 V
Mounting Pattern (nfpa)
D03
Mttfd
300 Years
Porting Pattern
ISO 4401-03-02-0-05
Rated Current (24 Vdc)
1.25 A
Solenoid Type
High‑Power Wet‑Pin (E)
Supply Voltage
24 VDC
Valve Size (ng)
6
1620 Old Apex Road
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