Bosch Rexroth | Z4WE6E68-21AG24NK4
Z4WE6E68-21/AG24NK4
Request a Quote
Call For Quote
What Happens Next?
Email Confirmation
You will get an email confirming we have received your inquiry.
Dedicated Account Manager
A team member will review your request and be in touch concerning any questions or specifications.
Quote Delivered
You will receive a comprehensive quote tailored to your specific needs.
The Z4WE6E68-21/AG24NK4 directional spool valve belongs to the WE Directional Spool Valves series and is manufactured by Bosch Rexroth for hydraulic automation tasks that require precise flow reversal. It mounts on an ISO 4401-03-02-0-05 (NFPA D03) interface, so it can replace standard size 03 valves without manifold changes. The coil is designed for a nominal voltage of 24 V DC and draws a rated current of 1.25 A during steady energization. Under these electrical conditions it consumes 30 W, staying within a ±10 % voltage window to maintain stable force on the spool. Continuous energization is possible because the solenoid is specified for a 100 % duty cycle, eliminating the need for intermittent operation. Environmental sealing is defined by an IP65 protection class, which guards against dust ingress and low-pressure water jets when the connector is properly installed. With a single solenoid fitted the assembled valve weighs 1.45 kg, allowing straightforward handling during panel or manifold installation.
Hydraulic performance is defined by a maximum pressure of 350 bar on ports A, B, and P, while port T tolerates up to 210 bar when direct-current actuation is used. At rated conditions the valve passes up to 80 l/min, making it suitable for medium flow circuits on compact machinery. The pairing of flow rating and pressure capacity allows consistent actuator speed while avoiding excessive pressure drops. The spool can be shifted up to 4.2 times per second during direct-current service, enabling rapid cycling in servo-controlled loops. When the coil is de-energized, internal suppression limits the switch-off overvoltage to 500 V to protect driver electronics. The hydraulic fluid may have a viscosity between 2.8 mm²/s and 500 mm²/s, giving broad compatibility with common mineral oils and synthetics. Fluid cleanliness must reach ISO 4406 class 20/18/15 or better to preserve spool fit and ensure reliable shifting over long service intervals.
Technical Specifications
Duty Cycle
100%
Fluid Cleanliness Class
ISO 4406 20/18/15
Max Operating Pressure (a/b/p)
350 bar
Max Switch-off Overvoltage
500 V
Max Switching Frequency (dc)
4.2 1/s
Max Tank Port Pressure (dc)
210 bar
Maximum Flow (dc)
80 l/min
Maximum Fluid Viscosity
500 mm2/s
Minimum Fluid Viscosity
2.8 mm2/s
Mounting Interface
ISO 4401-03-02-0-05 (NFPA D03)
Nominal Power (dc)
30 W
Nominal Voltage
24 V DC
Protection Class
IP65
Rated Current (24 V Dc)
1.25 A
Voltage Tolerance
±10%
Weight (one Solenoid)
1.45 kg
1620 Old Apex Road
Shipping & Payment Options
