Bosch Rexroth | 4WEH10G4X6EW110N9K4B08
4WEH10G4X/6EW110N9K4/B08
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The 4WEH10G4X/6EW110N9K4/B08 spool valve is produced by Bosch Rexroth in the WEH Directional Spool Valves series. As an electro-hydraulic 4-way unit, it shifts flow paths under solenoid-controlled pilot pressure to route oil between actuator ports in automated power units. The nominal size NG10 matches manifolds that carry medium flow rates while keeping installation compact. For secure attachment the housing follows the ISO 4401-05-05-0-05 interface and must be fixed with bolts tightened to 12.5 N·m. Electrical power reaches the solenoids through a DIN EN 175301-803 K4 connector, and a concealed N9 manual override lets maintenance staff move the spool mechanically during setup. The assembled valve with two spring-centered solenoids weighs 6.8 kg, allowing single-person handling during cabinet or manifold mounting.
The high-power 6E pilot control valve permits rapid shifting while managing a maximum flow of 130 L/min through spool code G at 280 bar system pressure. Working ports P, A, and B as well as the T port all tolerate 280 bar, so line sizing can remain uniform across supply and return. The pilot stage accepts up to 250 bar while operating reliably with an external pilot feed as low as 12 bar, giving flexibility in circuit design. A B08 throttle insert with a 0.8 mm diameter can be fitted to limit pilot flow and improve damping. Oil cleanliness must reach ISO 4406 class 20/18/15 to protect the precision edges and maintain leakage control. These hydraulic limits define safe service conditions and ensure consistent spool positioning during continuous machine cycles.
Technical Specifications
Actuation Type
Electro-Hydraulic
Cleanliness Class
ISO 4406 (c) 20/18/15
Electrical Connection
DIN EN 175301-803 (K4)
Manual Override
Concealed (N9)
Max Flow (spool G At 280 Bar)
130 L/min
Max Pressure (p, A, B)
280 bar
Max Pressure (t Port)
280 bar
Maximum Pilot Pressure
250 bar
Min Pilot Pressure (x External)
12 bar
Mounting Interface
ISO 4401-05-05-0-05
Mounting Screw Torque
12.5 N·m
Nominal Size
NG10
Pilot Control Valve
High-Power (6E)
Throttle Insert
Ø0.8 mm (B08)
Valve Function
4-Way
Weight (two Solenoids, Spring-centered)
6.8 kg
1620 Old Apex Road
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