Bosch Rexroth | 4WEH32L6X6EG24N9S2DL
4WEH32L6X/6EG24N9S2DL
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The 4WEH32L6X/6EG24N9S2DL valve belongs to the WEH Directional Spool Valves series produced by Bosch Rexroth for hydraulic automation where high flow must be routed quickly between actuators. It is a 4-way model, and its L-coded spool establishes the required connections between pressure, tank, and two work ports. With a nominal size of NG32 the internal galleries pass up to 750 l/min at 280 bar, allowing large cylinders to cycle without excessive pressure loss. Control energy reaches the main stage through an external pilot oil supply; the spool is returned to center by a spring once pilot pressure is removed. Spring-centered operation needs at least 8.5 bar to shift and can be subjected to a pilot pressure as high as 250 bar, ensuring reliable movement under varying system conditions.
Electrical actuation is provided by a 24 V DC solenoid, while a concealed manual override designated N9 permits on-site operation during testing or power loss. Shift timing can be tuned via discharge control S2 so that the valve opens and closes at rates compatible with downstream components. The unit bolts to an ISO 4401-10-09-0-05 subplate, accepting six M20 × 80 screws conforming to ISO 4762; each fastener must be tightened to 340 Nm within a tolerance of ±10 % to maintain seal integrity. This standardized porting pattern simplifies interchange with other hardware and keeps piping changes minimal. The assembled valve weighs 41.0 kg, a factor that influences handling equipment selection and support structure design.
Technical Specifications
Manual Override
Concealed (N9)
Max Flow (symbol L, 280 Bar)
750 l/min
Max Operating Pressure P/a/b
280 bar
Max Pilot Pressure
250 bar
Min Pilot Pressure (spring-centered)
8.5 bar
Mounting Screw Torque
340 Nm ±10%
Mounting Screws
6x M20 x 80 (ISO 4762)
Pilot Oil Supply
External
Porting Pattern
ISO 4401-10-09-0-05
Size
NG32
Solenoid Voltage
24 V DC
Spool Return
Spring-Centered
Spool Symbol
L
Switching Time Adjustment
Discharge Control (S2)
Way Configuration
4-Way
Weight
41.0 kg
1620 Old Apex Road
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