Bosch Rexroth | 4WEH10H4X6EG24N9TDA
4WEH10H4X/6EG24N9TDA
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The 4WEH10H4X/6EG24N9TDA directional valve belongs to the WEH Directional Spool Valves series produced by Bosch Rexroth. It is installed in hydraulic automation to shift flow paths between actuators and power supplies. The unit is built as a 4-way, 2-position element, so it can alternate between two circuit states for cylinders or motors. Its NG10 nominal size supports a maximum flow of 160 l/min at the hydraulic end, enabling medium-capacity circuits. A rated operating pressure of 350 bar on ports P, A, and B allows use in high-pressure machinery. The spool identified by symbol D defines the flow pattern in each switching state. Energizing a 24 V DC coil within pilot control stage 6E shifts the main spool, and pilot oil is supplied externally at port X with internal return at port T to simplify tank piping.
Stable pilot operation begins at 7 bar and remains safe up to 250 bar on the pilot line, while the internal return path can withstand 210 bar. Fluid entering the valve must meet ISO 4406 cleanliness class 20/18/15 to protect precision sliding surfaces. A concealed N9 manual override lets maintenance personnel shift the valve without electrical power. Mounting follows the ISO 4401-05-05-0-05 pattern and requires four M6 × 45 screws; each fastener is tightened to 12.5 N·m to prevent leakage. The housing accepts these screws directly, so no additional sub-plates are needed. Together these features create a dependable valve package for machines that require reliable directional control under variable load conditions.
Technical Specifications
Coil Voltage
24 V DC
Fluid Cleanliness Class
ISO 4406 20/18/15
Manual Override
Concealed (N9)
Max Flow (ng10, Hyd End)
160 l/min
Max Operating Pressure (p,a,b)
350 bar
Max Pilot Pressure
250 bar
Max Pilot Return Pressure (y Internal, Dc)
210 bar
Min Pilot Pressure (2-pos, Hyd End)
7 bar
Mounting Screw Torque (m6)
12.5 Nm
Mounting Screws
4x M6 × 45 (ISO 4762)
Nominal Size
NG10
Pilot Control Valve
6E
Pilot Oil
X External; T Internal
Porting Pattern
ISO 4401-05-05-0-05
Spool Symbol
D
Valve Function
4-Way, 2-Position
1620 Old Apex Road
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