Bosch Rexroth | H-4WEH10G4X6EG24N9EK4B10
H-4WEH10G4X/6EG24N9EK4/B10
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The H-4WEH10G4X/6EG24N9EK4/B10 valve is part of the WEH Directional Spool Valves series from Bosch Rexroth and is built to shift hydraulic flow paths in automated machinery. It has a nominal size of 10, which sets the mounting interface and flow channel dimensions, and a 4-way layout that provides four controlled ports for pressure, tank, and two actuator lines. The porting pattern follows ISO 4401-05-05-0-05 so the unit fits standard subplates without adapters. Its solenoid operates on 24 V DC and connects through a DIN EN 175301-803 plug, simplifying wiring. A concealed manual override permits local movement of the spool when power is absent. Pilot oil is supplied internally from the pressure port, whereas pilot return is routed externally to the tank.
To maintain functional reliability, the valve must receive fluid cleaned to ISO 4406 (c) 20/18/15. A 1.0 mm throttle orifice moderates pilot flow for stable shifting. The spool housing withstands operating pressures up to 350 bar, and the pilot circuit is rated for 250 bar. Under symbol G at 350 bar, the device passes up to 120 l/min, supporting medium-capacity circuits. Spring-centered three-position operation requires a minimum pilot pressure of 12 bar to overcome centering forces. The allowable fluid temperature window extends from -20 °C to 80 °C, safeguarding seals and maintaining viscosity across typical industrial ambient conditions.
Technical Specifications
Cleanliness Class
ISO 4406 (c) 20/18/15
Coil Voltage
24 V DC
Electrical Connection
DIN EN 175301-803
Manual Override
Concealed
Max Flow (symbol G, 350 Bar)
120 l/min
Max Fluid Temperature (nbr)
80 °C
Max Operating Pressure
350 bar
Max Pilot Pressure
250 bar
Min Fluid Temperature (nbr)
-20 °C
Min Pilot Pressure (3-pos, Spring-centered)
12 bar
Nominal Size (ng)
10
Pilot Oil Return
External
Pilot Oil Supply
Internal
Porting Pattern
ISO 4401-05-05-0-05
Throttle Orifice Diameter
1.0 mm
Way Configuration
4-Way
1620 Old Apex Road
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