Bosch Rexroth | 4WEH10E4X6EG24N9DA
4WEH10E4X/6EG24N9DA
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The 4WEH10E4X/6EG24N9DA valve belongs to the WEH Directional Spool Valves series and is manufactured by Bosch Rexroth. It functions as an electro-hydraulic unit that converts an electrical command into hydraulic spool movement for automated fluid control. The electro-hydraulic actuation lets a control system shift the main stage without large pilot flow. A 24 V DC coil energizes the pilot solenoid so the valve can tie directly to common machine voltage supplies. The integrated 6E pilot valve generates the control pressure, while external X and Y lines isolate pilot oil supply and return from the work ports. Minimum pilot pressure of 12 bar is required to overcome the spring force, and the pilot circuit must not exceed 250 bar. The main spool is spring-centered, returning to neutral when the solenoid is de-energized. A concealed N9 manual override permits mechanical shifting during maintenance without exposing moving parts, and the NG10 size defines the mounting envelope.
The valve supports a maximum flow rate of 160 l/min, allowing medium-capacity actuators to operate without excessive pressure drop. Ports P, A, and B withstand up to 280 bar, and port T is also rated for 280 bar so the tank line may be pressurized when needed. The four-way configuration provides two controlled work paths plus pressure and tank connections, while spool symbol E establishes the overlap and metering profile for proportional load handling. An ISO 4401-05-05-0-05 porting pattern matches standard subplates for straightforward installation. Hydraulic cleanliness should be maintained at ISO 4406 class 20/18/15 to prevent spool sticking or wear. These ratings combine to give reliable service in circuits that demand repeated shifting under high pressure.
Technical Specifications
Actuation
Electro-Hydraulic
Cleanliness Class
ISO 4406 20/18/15
Coil Voltage
24 V DC
Manual Override
Concealed (N9)
Max Flow
160 l/min
Max Operating Pressure (p, A, B)
280 bar
Max Pilot Pressure
250 bar
Max Pressure Port T
280 bar
Min Pilot Pressure (spring-centered)
12 bar
Pilot Oil Supply/return
External (X/Y)
Pilot Valve Type
6E
Porting Pattern
ISO 4401-05-05-0-05
Size (ng)
10
Spool Return (main Valve)
Spring
Spool Symbol
E
Way Configuration
4-Way
1620 Old Apex Road
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