Bosch Rexroth | H-4WEH25J6X6EG24N9K4
H-4WEH25J6X/6EG24N9K4
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The H-4WEH25J6X/6EG24N9K4 directional spool valve is manufactured by Bosch Rexroth for the WEH Directional Spool Valves series and directs hydraulic flow in automated machinery. The solenoids operate on 24 V DC, allowing connection to common control supplies, while the DIN EN 175301-803 K4 plug simplifies wiring. Its 4-way flow path supports bidirectional cylinder circuits, and the J spool profile defines the internal crossover during actuation. A nominal size of NG25 provides the flow capacity needed for mid-range power units. The spool is spring-centered so it returns to neutral when power is removed, and a concealed manual override permits setup moves without exposed levers. Shifting force is developed by a 6E high-power pilot valve that moves the main spool quickly.
Pilot pressure is supplied externally through port X, keeping control pressure independent of the main line, and pilot oil returns externally through port Y to limit backpressure in the pilot stage. The mounting face follows the ISO 4401-08-08-0-05 pattern so it mates with standard subplates. Ports P, A, and B are rated for 350 bar, the pilot stage tolerates 250 bar, and the pilot return line withstands 210 bar. A minimum of 13 bar is required to overcome the centering springs and shift the spool. With two solenoids installed the valve weighs 19.0 kg, so the manifold or bracket must support that load.
Technical Specifications
Coil Voltage
24 V DC
Electrical Connection
DIN EN 175301-803 (K4)
Manual Override
Concealed (N9)
Max Operating Pressure (p, A, B)
350 bar
Max Pilot Pressure
250 bar
Max Pilot Return Pressure (y)
210 bar
Min Pilot Pressure (spring-centered)
13 bar
Pilot Control Valve
6E High-Power
Pilot Return
External (Y)
Pilot Supply
External (X)
Porting Pattern
ISO 4401-08-08-0-05
Size
NG25
Spool Return
Spring-Centered
Spool Symbol
J
Way Function
4-Way
Weight (2 Solenoids)
19.0 kg
1620 Old Apex Road
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