Bosch Rexroth | 4WEH10G4X6EG12N9K4
4WEH10G4X/6EG12N9K4
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The 4WEH10G4X/6EG12N9K4 directional spool valve belongs to the WEH Directional Spool Valves series and is manufactured by Bosch Rexroth. Designed for hydraulic automation, it routes pressurized fluid to drive actuators in machines that require precise start, stop, and reverse motions. The 4-way function supplies and returns oil to two work ports, offering bidirectional control. NG10 size matches medium-duty circuits that use 10 mm interface dimensions. Electro-hydraulic actuation lets a low-power pilot stage shift the main spool, cutting electrical demand on the control system. Spool type G establishes flow paths suited for throttling and achieves a maximum flow of 130 l/min at 280 bar. The ISO 4401-05-05-0-05 porting pattern allows quick mounting on standard subplates without custom drilling. A 12 V DC solenoid powers the pilot, and separate external X and Y lines feed and drain the pilot oil to isolate it from the main return line.
A spring-centered arrangement returns the spool to neutral when the solenoid is de-energized, maintaining system safety. Electrical hookup is through a DIN EN 175301-803 connector, giving a sealed plug-in interface for mobile or stationary units. A concealed manual override enables technicians to move the spool during commissioning or when power is unavailable. Ports P, A, and B tolerate 280 bar, and port T is rated for the same pressure, so all work lines share identical limits. The pilot circuit can be supplied up to 250 bar, yet only 12 bar is needed for assured shifting, which allows the valve to operate from low-pressure control pumps. NBR seals resist mineral-based hydraulic fluids and hold pressure over long duty cycles, supporting leak-free service. Together, these attributes simplify design work and promote reliable performance in automated hydraulic systems.
Technical Specifications
Actuation Type
Electro-Hydraulic
Centering Method
Spring-Centered
Electrical Connector
DIN EN 175301-803
Manual Override
Concealed
Max Flow (spool G At 280 Bar)
130 l/min
Max Operating Pressure (p/a/b)
280 bar
Max Pilot Pressure
250 bar
Max Pressure At Port T
280 bar
Min Pilot Pressure (x External)
12 bar
Pilot Oil Supply/return
External (X/Y)
Porting Pattern
ISO 4401-05-05-0-05
Seal Material
NBR
Size
NG10
Solenoid Voltage
12 V DC
Spool Type
G
Valve Function
4-Way
1620 Old Apex Road
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