Bosch Rexroth | 4WEH10J4X6EG24N9ETK4B10D3
4WEH10J4X/6EG24N9ETK4/B10D3
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The 4WEH10J4X/6EG24N9ETK4/B10D3 belongs to the WEH Directional Spool Valves series manufactured by Bosch Rexroth for hydraulic automation where directional control and rapid switching are required. It is built in size NG10 so the mounting surface matches ISO 4401-05-05-0-05 sub-plates, and the J spool symbol specifies the flow paths that are engaged in its three-position operation. A maximum flow capacity of 160 l/min enables the valve to handle substantial circuit throughput on NG10 manifolds, while a maximum operating pressure of 280 bar at ports P, A, and B supports high-pressure systems. Spool movement is generated by a 6E high-power pilot valve that runs on a 24 V DC coil, giving quick actuation even under load. The pilot circuit uses internal supply and return (ET), eliminating external pilot lines and simplifying plumbing.
A concealed manual override tagged N9 is provided so technicians can shift the spool during commissioning without exposing the control to accidental activation. A 1.0 mm throttle insert coded B10 meters pilot oil to moderate switching speed and reduce shock. The integrated D3 pressure-reducing valve limits the pilot stage, and the resulting secondary pressure is held at 45 bar to protect downstream components; the pilot feed itself is rated for a maximum of 250 bar. Hydraulic cleanliness must be maintained at ISO 4406 class 20/18/15 to avoid spool sticking, and electrical connection is made via a DIN EN 175301-803 K4 plug for consistent wiring. An MTTFd of 100 years supports safety calculations that require high reliability over the service life.
Technical Specifications
Cleanliness Class
20/18/15 (ISO 4406)
Electrical Connection
DIN EN 175301-803 (K4)
Manual Override
Concealed (N9)
Max Flow (ng10, J Spool)
160 l/min
Max Operating Pressure (p,a,b)
280 bar
Max Pilot Pressure
250 bar
Mttfd
100 years
Pilot Circuit
Internal Supply/Return (ET)
Pilot Valve Type
6E (High-Power)
Porting Pattern
ISO 4401-05-05-0-05
Pressure Reducing Valve
D3
Secondary Pressure (d3)
45 bar
Size
NG10
Solenoid Voltage
24 V DC
Spool Symbol
J
Throttle Insert
1.0 mm (B10)
1620 Old Apex Road
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