Bosch Rexroth | H-4WEH10J4X6EG24N9ETK4B10D3
H-4WEH10J4X/6EG24N9ETK4/B10D3
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The H-4WEH10J4X/6EG24N9ETK4/B10D3 directional spool valve is produced by Bosch Rexroth within the WEH Directional Spool Valves series. It directs hydraulic flow to actuators in automated machines and is sized for NG10 manifolds, so it matches medium-capacity circuits. The J spool geometry provides meter-in and meter-out control that supports a maximum flow of 160 l/min, letting cylinders shift quickly when the circuit demands. A spring-centered return recenters the element when pilot pressure is removed, restoring neutral positioning without external assistance. The main stage tolerates up to 350 bar on ports P, A, and B, enabling use in high-pressure mobile or industrial systems. Command signals reach the main stage through a 4WE 6 High-Power pilot valve that runs on 24 V DC, giving fast magnetic force for reliable shifting. A concealed N9 manual override is included, allowing service personnel to move the spool during commissioning while keeping the actuator surface flush.
Pilot control parameters match demanding duty cycles: supply and return are internal (ET), the circuit can apply up to 250 bar pilot pressure, and a spring-centered three-position layout only needs 12 bar to initiate movement. Internal return passages accommodate 210 bar in DC operation, avoiding the need for an external tank line. A built-in secondary pressure-reducing stage limits downstream pressure to 45 bar, protecting sensitive actuators. Flow stability is improved by a B10 throttle insert with a 1.0 mm orifice that dampens pressure spikes at the pilot feed. Electrical hookup uses a DIN EN 175301-803 K4 connector, simplifying wiring to standard cable sets, while the ISO 4401-05-05-0-05 porting pattern aligns with common subplates for quick installation.
Technical Specifications
Electrical Connection
DIN EN 175301-803 (K4)
Manual Override
N9 (concealed)
Max Flow (symbol J, Ng10)
160 l/min
Max Operating Pressure (p,a,b)
350 bar
Max Pilot Pressure
250 bar
Min Pilot Pressure (3-pos, Spring)
12 bar
Nominal Size
NG10
Pilot Return Pressure (internal)
210 bar (DC)
Pilot Supply/return
Internal (ET)
Pilot Valve Type
4WE 6 High-Power (6E)
Pilot Valve Voltage
24 V DC
Porting Pattern
ISO 4401-05-05-0-05
Pressure Reducing Valve Secondary
45 bar
Spool Centering
Spring-Centered
Spool Symbol
J
Throttle Insert
Ø 1.0 mm (B10)
1620 Old Apex Road
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