Bosch Rexroth | 4WEH10Q4X6EW110N9ETK4B10V
4WEH10Q4X/6EW110N9ETK4/B10V
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The 4WEH10Q4X/6EW110N9ETK4/B10V valve is manufactured by Bosch Rexroth and belongs to the WEH Directional Spool Valves series, where it serves to shift hydraulic flow paths with electrical pilot actuation. The mounting interface follows size NG10 so the body fits standard sub-plates for this flow class. A Q spool establishes predetermined flow connections in each energized state and isolates ports at center. Actuation force is provided by a high-power 6E pilot valve, and both pilot oil supply and return are routed internally, removing the need for external lines. The pilot stage opens when at least 12 bar is available and withstands up to 250 bar during operation, while the internal return channel tolerates 160 bar without deformation. A 1.0 mm throttle insert in the pilot circuit limits surge flow for stable shifting, and the zero-position leakage area between port A and tank is limited to 13 mm² to reduce idle losses.
The main flow path accommodates up to 160 l/min, matching typical demands for NG10 directional control. Ports P, A, and B can be pressurized to 280 bar, allowing the valve to handle high-pressure circuits common in industrial presses and mobile equipment. The sub-plate mounting face conforms to ISO 4401-05-05-0-05 so interchange with other NG10 components is straightforward. Electrical connection is made through a DIN EN 175301-803 type K4 plug, providing a sealed, screw-retained interface for the solenoid coil. A concealed manual override designated N9 lets technicians shift the spool during commissioning or power loss without protruding levers. FKM seals resist elevated oil temperature and synthetic fluid blends, maintaining leakage control over extended service intervals.
Technical Specifications
Electrical Connector
DIN EN 175301-803 (K4)
Manual Override
Concealed (N9)
Max Flow (ng10)
160 l/min
Max Operating Pressure (p,a,b)
280 bar
Max Pilot Pressure
250 bar
Min Pilot Pressure
12 bar
Pilot Control Valve
6E (High-Power)
Pilot Oil Return
Internal (ET)
Pilot Oil Supply
Internal (ET)
Pilot Return Max Pressure (y Internal, Ac)
160 bar
Porting Pattern
ISO 4401-05-05-0-05
Seal Material
FKM
Size
NG10
Spool Symbol
Q
Throttle Insert
Ø 1.0 mm (B10)
Zero Position Flow A–t (q)
13 mm²
1620 Old Apex Road
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