Bosch Rexroth | 4WEH32E6X6EG24N9S2K4
4WEH32E6X/6EG24N9S2K4
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The 4WEH32E6X/6EG24N9S2K4 directional spool valve is produced by Bosch Rexroth for the WEH Directional Spool Valves series. It controls oil flow in hydraulic automation circuits by shifting a size NG32 spool through electro-hydraulic actuation. The spool configuration is identified by symbol E, allowing three-way flow paths suited to heavy-duty machinery. The pilot stage accepts a 24 V DC signal, so the electrical interface can be integrated with standard machine controllers. When energized, the valve can pass up to 1100 l/min while maintaining a maximum of 280 bar in the pressure, A, and B ports and 250 bar in the tank port. Stable operation of the spring-centered three-position element begins at a pilot pressure of 8.5 bar, which ensures reliable centering before actuation.
External connection is provided through a DIN EN 175301-803 K4 plug, simplifying wiring on mobile or stationary power units. A concealed manual override marked N9 enables local shifting when control power is absent without exposing moving parts. The pilot circuit tolerates up to 250 bar, and the y port is limited to 210 bar to protect drain lines. Installation follows subplate mounting with an ISO 4401-10-09-0-05 porting pattern, and the fixing screws are tightened to 340 Nm to prevent leakage. Dynamic behavior can be tuned with S2 discharge control switching-time adjustment, allowing the user to match spool movement to system requirements. These characteristics complete the functional profile of the valve.
Technical Specifications
Actuation Type
Electro-Hydraulic
Electrical Connection
DIN EN 175301-803 (K4)
Manual Override
Concealed (N9)
Max Pilot Pressure
250 bar
Max Pressure (p, A, B)
280 bar
Max Pressure (t Port)
250 bar
Max Pressure (y Port, Dc)
210 bar
Maximum Flow
1100 l/min
Min Pilot Pressure (3-pos, Spring)
8.5 bar
Mounting Screw Torque
340 Nm
Mounting Type
Subplate Mounting
Porting Pattern
ISO 4401-10-09-0-05
Rated Voltage
24 V DC
Spool Symbol
E
Switching Time Adjustment
S2 (Discharge Control)
Valve Size
NG32
1620 Old Apex Road
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