Bosch Rexroth | 4WEH16W7X6EG24N9EK4B10
4WEH16W7X/6EG24N9EK4/B10
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The 4WEH16W7X/6EG24N9EK4/B10 directional valve is built by Bosch Rexroth for the WEH Directional Spool Valves series. It provides electro-hydraulic actuation to shift an NG16 spool for machine control tasks. The unit carries three spool positions arranged according to symbol W to route flow during advance, neutral, and retract modes. A 24 V DC solenoid pilot shifts the main spool while pilot oil is taken internally and returned externally. Connection to the control circuit is made through a DIN EN 175301-803 K4 plug, and four working ports follow the ISO 4401-07-07-0-05 mounting pattern for quick manifold installation. These features enable compact integration in hydraulic automation systems that need consistent path control.
At 280 bar on ports P, A, and B the valve sustains a continuous flow up to 300 l/min without losing directional accuracy. The concealed N9 manual override allows emergency shifting when electrical power is unavailable. Pilot stages tolerate 250 bar and the same limit applies to the external T port, while the external Y drain withstands 210 bar in direct-current service. A 1.0 mm throttle insert coded B10 sits in the pilot gallery to damp pressure surges and stabilize shifting at high flow rates. Together these ratings confirm the valve’s suitability for heavy-duty circuits that demand reliable performance under high pressure.
Technical Specifications
Actuation Type
Electro-Hydraulic
Electrical Connection
DIN EN 175301-803 (K4)
Manual Override
Concealed (N9)
Max Flow (w, 280 Bar)
300 l/min
Max Operating Pressure (p, A, B)
280 bar
Max Pilot Pressure
250 bar
Max Port T Pressure (y External)
250 bar
Max Port Y Pressure (external)
210 bar (DC)
Pilot Oil
Internal Supply, External Return (E)
Porting Pattern
ISO 4401-07-07-0-05
Ports
4
Solenoid Voltage
24 V DC
Spool Positions
3
Spool Symbol
W
Throttle Insert Diameter
1.0 mm (B10)
Valve Size
NG16
1620 Old Apex Road
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