Bosch Rexroth | 4WE6J6XEG12N9K4SO43A-1820B
4WE6J6X/EG12N9K4SO43A-1820B
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The 4WE6J6X/EG12N9K4SO43A-1820B directional spool valve is produced by Bosch Rexroth within the WE Directional Spool Valves series. It directs pressurized fluid to selected actuator ports in hydraulic automation circuits. The valve follows the ISO 4401-03-02-0-05 porting pattern, while compatibility with NFPA code T3.5.1 R2-2002 D03 supports standard subplate mounting. Flow capability reaches 80 l/min, so the unit can handle medium-sized cylinders and motors. Ports A and B withstand operating pressures up to 350 bar, and the tank port tolerates 210 bar without damage. An energized solenoid receives 12 VDC, and the coil draws 2.5 A during steady operation. Electrical power is introduced through a K4 plug according to DIN EN 175301-803, simplifying field wiring.
Ingress protection is rated IP65 when the K4 connector is properly sealed, allowing exposure to dust and low-pressure water jets. A concealed N9 manual override lets maintenance staff shift the spool mechanically, and its use is limited to back pressures not exceeding 50 bar on the tank line. The valve accepts installation in any position, which eases manifold layout in compact machinery. Switch-off overvoltage is limited to 500 V to protect control electronics when the coil is de-energized. Hydraulic cleanliness requirements are ISO 4406 20/18/15 to maintain spool clearance and prevent sticking. Correct clamping to the subplate is achieved with M5 bolts tightened to 7 Nm. The assembly with two solenoids weighs 1.95 kg, minimizing load on lightweight manifolds.
Technical Specifications
Cleanliness Class
ISO 4406 20/18/15
Coil Voltage
12 VDC
Electrical Connection
K4 (DIN EN 175301-803)
Installation Position
Any
Manual Override
Concealed (N9)
Manual Override Limit (t)
50 bar
Max Flow (dc)
80 l/min
Max Operating Pressure (p, A, B)
350 bar
Max Tank Pressure (t, Dc)
210 bar
Mounting Bolt Torque (m5)
7 Nm
Nfpa Porting
T3.5.1 R2-2002 D03
Porting Pattern
ISO 4401-03-02-0-05
Protection Class (k4)
IP65
Rated Current (g12)
2.5 A
Switch-off Overvoltage Max
500 V
Weight (two Solenoids)
1.95 kg
1620 Old Apex Road
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