Bosch Rexroth | 4WEH16U10B7X6EG24K4QM0G24
4WEH16U10B7X/6EG24K4QM0G24
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The 4WEH16U10B7X/6EG24K4QM0G24 directional spool valve is manufactured by Bosch Rexroth within the WEH Directional Spool Valves series and is intended to route hydraulic flow in automated machinery. It uses electro-hydraulic actuation, and its 4-way spool provides four distinct flow paths for pressure, return, and two work ports. The nominal size is NG16, and with the U-coded spool it handles up to 300 l/min. Continuous operating pressure reaches 280 bar at ports P, A, and B, while port T is limited to 250 bar. The spool rests in a monitored position, and shifting is driven by a 24 V DC solenoid wired through a DIN EN 175301-803 K4 connector. Interface mounting follows ISO 4401-07-07-0-05, keeping the valve compatible with standardized subplates.
Pilot control accepts pressures up to 250 bar, requires at least 14 bar to center the spring-loaded spool, and displaces 5.72 cm³ in the three-position version. The integrated position switch operates on 24 V DC, enabling direct connection to common control circuits. Installation is secured with M10 screws tightened to 58 N·m, and hydraulic fluid cleanliness must meet class 20/18/15 under ISO 4406 to avoid wear or sticking. These limits on pilot pressure, mounting torque, and oil purity help the valve achieve repeatable response in high-duty cycles.
Technical Specifications
Actuation Type
Electro-Hydraulic
Cleanliness Class (iso 4406)
20/18/15
Electrical Connector
DIN EN 175301-803 (K4)
M10 Mounting Screw Torque
58 Nm
Max Flow (symbol U, Ng16)
300 l/min
Max Operating Pressure (p,a,b)
280 bar
Max Pilot Pressure
250 bar
Max Port T Pressure
250 bar
Min Pilot Pressure (spring-centered)
14 bar
Nominal Size
NG16
Pilot Volume (3-pos Spring-centered)
5.72 cm3
Porting Pattern
ISO 4401-07-07-0-05
Position Switch Supply Voltage
24 V DC
Solenoid Rated Voltage
24 V DC
Spool Position Monitoring
Monitored Rest Position
Way Configuration
4-Way
1620 Old Apex Road
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