Bosch Rexroth | 4WEH10W4X6EG24N9ETDK24L10B10D3-AN
4WEH10W4X/6EG24N9ETDK24L/10B10D3 AN
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The 4WEH10W4X/6EG24N9ETDK24L/10B10D3 AN valve belongs to the WEH Directional Spool Valves series manufactured by Bosch Rexroth. It directs oil flow in automated hydraulic circuits and supports the NG10 size for medium-frame manifolds. The unit tolerates a maximum operating pressure of 280 bar at ports P, A, and B and passes up to 160 l/min with symbol W, providing fast actuator response. A 24 V DC pilot solenoid shifts the spool, while the three-position spring-centered design needs at least 12 bar pilot pressure to function. Mounting conforms to the ISO 4401-07-07-0-05 interface so the valve fits standard subplates. System fluid must meet cleanliness class 20/18/15 under ISO 4406 to protect sliding elements, and the valve shows an MTTFd of 100 years for long statistical service life.
The pilot circuit can be pressurized to 250 bar, delivering reserve force for reliable shifting, and port D3 sees a secondary pressure limited to 45 bar to protect downstream controls. Internal pilot operation requires at least 4.5 bar at port P to overcome spring forces. Installation uses four M6 × 45 subplate screws, each tightened to 12.5 Nm with a tolerance of ±10 percent to avoid housing distortion. Flow trimming is possible through a throttle insert with a 1.0 mm diameter at position b10, while the zero-position free cross-section of 2.4 mm² between ports a-t and B-t keeps leakage low when centered. These parameters set the hydraulic limits, mechanical fixation, and metering behavior required for dependable automation.
Technical Specifications
Cleanliness Class (iso 4406)
20/18/15
D3 Secondary Pressure
45 bar
Max Flow (symbol W)
160 l/min
Max Operating Pressure (p, A, B)
280 bar
Max Pilot Pressure
250 bar
Min Pilot Pressure (3-pos Spring-centered)
12 bar
Min Pressure At Port P (x Internal)
4.5 bar
Mounting Interface
ISO 4401-07-07-0-05
Mttfd (type Weh)
100 years
Pilot Solenoid Voltage
24 V DC
Screw Tightening Torque
12.5 Nm ±10%
Size
NG10
Subplate Mounting Screws
4 × M6 × 45
Throttle Insert Diameter (b10)
1.0 mm
Zero-pos Free Cross-section (a–t, B–t)
2.4 mm²
1620 Old Apex Road
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