Bosch Rexroth | 4WEH22J7X6EG24N9EK4B10
4WEH22J7X/6EG24N9EK4/B10
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The 4WEH22J7X/6EG24N9EK4/B10 valve is a product in the WEH Directional Spool Valves series from Bosch Rexroth. It directs hydraulic flow in automation circuits that need rapid shifting and high capacity. The NG25 size sets the flow cross-section for medium-to-large actuators, and the ISO 4401-08-08-0-05 porting pattern lets the body bolt directly to standard subplates. With symbol J the main stage passes up to 450 l/min, while ports P, A, and B withstand continuous service at 280 bar. Pilot actuation is handled by a 4WE6E valve supplied internally, so no external pilot line is required; the pilot path opens at 10.5 bar and may be operated up to 210 bar. Port Y can also tolerate 210 bar during dynamic conditions. Electrical triggering relies on a 24 V DC coil attached through a DIN EN 175301-803 K4 connector, giving straightforward integration with common machine wiring systems.
For reliable duty the hydraulic fluid must remain cleaner than ISO 4406 20/18/15, which limits solid contamination and keeps the spool land clear. Installation requires six M12 × 60 screws; when each fastener is tightened to 100 Nm the subplate seal loads evenly under full manifold pressure, and the specified length ensures full thread engagement without blocking internal passages. A factory-installed throttle insert with a 1.0 mm orifice, identified as B10, restricts pilot oil to reduce shock during high-speed shifting and can eliminate the need for additional external damping plates. Long-term availability is quantified by an MTTFd of 100 years, supporting safety architectures that rely on predictable failure rates throughout multiple machine life cycles. These assembly, filtration, and damping details finish the technical profile of the 4WEH22J7X/6EG24N9EK4/B10 valve without adding external components.
Technical Specifications
Cleanliness Class
ISO 4406 20/18/15
Coil Voltage
24 V DC
Electrical Connection
DIN EN 175301-803 (K4)
Max Flow (symbol J)
450 l/min
Max Operating Pressure (p, A, B)
280 bar
Max Pilot Pressure
210 bar
Min Pilot Pressure
10.5 bar
Mounting Screws
M12 x 60 (Qty 6)
Mttfd
100 years
Pilot Control Valve Type
4WE6E
Pilot Oil Supply
Internal (E)
Port Y Max Pressure (dc)
210 bar
Porting Pattern
ISO 4401-08-08-0-05
Size
NG25
Throttle Insert
Ø 1.0 mm (B10)
Tightening Torque
100 Nm
1620 Old Apex Road
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