Bosch Rexroth | 4WE6J6XEG24N9K40B10SO43A-1799A
4WE6J6X/EG24N9K40/B10SO43A-1799A
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The 4WE6J6X/EG24N9K40/B10SO43A-1799A directional spool valve belongs to the WE Directional Spool Valves series and is produced by Bosch Rexroth for hydraulic automation tasks that require reliable on-off flow control. Installation is simplified by a mounting interface that follows the NFPA D03 pattern, allowing the unit to bolt directly onto common subplates. Its porting layout matches ISO 4401-03-02-0-05, so manifold passages line up without adapters. A clamping length of 42 mm sets the depth at which the body seats against the manifold, ensuring proper seal compression. Electrical actuation is based on a 24 V DC supply, and each coil draws 1.25 A, defining the driver requirements for the control system. Wiring is completed through a Deutsch DT04-2PA connector designated K40, which offers vibration-resistant contacts. Switch-off overvoltage remains below 500 V, limiting transient stress on connected electronics. With both solenoids installed the assembly weighs 1.95 kg, so a single technician can position it during service.
The valve passes up to 80 l/min of hydraulic fluid, giving adequate flow for medium-sized actuators. Working ports A, B, and P tolerate continuous pressures to 350 bar, whereas the tank port T is limited to 210 bar, so return plumbing must be rated accordingly. A throttle insert of 1.0 mm in port P slows inlet acceleration and minimizes shock when the spool shifts. Emergency motion is possible because a concealed N9 manual override lets an operator shift the spool without power, and this feature remains safe as long as back-pressure to tank stays below 50 bar. System cleanliness must reach ISO 4406 class 20/18/15 to avoid spool sticking and wear. The mean time to dangerous failure is 300 years, supporting long-term reliability calculations.
Technical Specifications
Clamping Length
42 mm
Coil Rated Current
1.25 A (24 VDC)
Electrical Connector
Deutsch DT04-2PA (K40)
Fluid Cleanliness
ISO 4406 (c) 20/18/15
Manual Override
N9 (Concealed)
Manual Override Tank Pressure Max
50 bar
Max Flow (dc)
80 l/min
Max Pressure (a/b/p)
350 bar
Max Pressure (t, Dc)
210 bar
Mounting Interface
NFPA D03
Mttfd
300 years
Porting Pattern
ISO 4401-03-02-0-05
Rated Voltage
24 V DC
Switch-off Overvoltage Max
500 V
Throttle Insert
Port P Ø 1.0 mm
Weight (two Solenoids)
1.95 kg
1620 Old Apex Road
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