Bosch Rexroth | Z4WE6E68-21AG24NZ4
Z4WE6E68-21/AG24NZ4
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The Z4WE6E68-21/AG24NZ4 valve is produced by Bosch Rexroth within the WE Directional Spool Valves series and is intended to shift hydraulic flow paths in automated machinery. As a size 6 unit, the envelope matches subplate cavities common in compact power packs. The product is direct operated, so spool movement is driven directly by the solenoid without pilot stages for quick response. A high-power wet-pin solenoid provides actuation at 24 V DC, drawing a rated current of 1.25 A and consuming 30 W. Voltage may deviate by up to ±10 % without functional loss, and continuous energization is possible because the coil is designed for a 100 % duty cycle. When mounted, the ISO 4401-03-02-0-05 subplate pattern allows straightforward interchange with other D03 devices.
For system designers, the NFPA T3.5.1 R2-2002 D03 pattern offers the same cavity standard recognized in North America. The valve routes up to 80 l/min while maintaining flow stability, and the direct channels withstand operating pressures of 350 bar on ports A, B, and P. Return port T can be exposed to 210 bar, letting the component operate in circuits with elevated back pressure. Rapid cycling is supported by a switching frequency of 4.2 operations per second, reducing response lag in servo loops. The unit may be installed in any orientation, easing layout constraints inside manifolds. A mean time to dangerous failure of 300 years increases confidence in safety-related applications.
Technical Specifications
Duty Cycle
100% ED
Installation Position
Any
Max Flow (dc)
80 l/min
Max Operating Pressure (a/b/p)
350 bar
Max Switching Frequency (dc)
4.2 1/s
Max Tank Port Pressure (dc)
210 bar
Mounting Pattern (iso)
ISO 4401-03-02-0-05
Mounting Pattern (nfpa)
NFPA T3.5.1 R2-2002 D03
Mttfd
300 years
Nominal Power (dc)
30 W
Nominal Voltage
24 V DC
Rated Current (24 V Dc)
1.25 A
Solenoid Type
High-Power Wet-Pin
Valve Size
6
Valve Type
Direct Operated
Voltage Tolerance
±10%
1620 Old Apex Road
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