Bosch Rexroth | Z4WE6E68-3XEW110N9K4
Z4WE6E68-3X/EW110N9K4
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The Z4WE6E68-3X/EW110N9K4 valve belongs to the Z4WE Solenoid Actuation Spool Valves series from Bosch Rexroth and controls directional flow in hydraulic automation circuits. It is built in size 6, allowing installation on manifolds that conform to the ISO 4401-03-02-0-05 porting pattern. The pressure chambers for ports P, A, and B accommodate up to 315 bar, while return flow through port T is limited to 160 bar to protect downstream lines. A maximum flow rate of 50 l/min keeps velocity within safe limits for typical machine tools and presses. The hydraulic path must meet ISO 4406 cleanliness class 20/18/15, and an NBR seal set maintains this standard while resisting mineral oil. Fluid entering the valve may reach +80 °C without degrading the elastomers, matching conditions found in warm power units.
The energized section is supplied by a 110 V AC coil rated for 50 or 60 Hz, drawing 220 VA at switch-on and settling to 50 VA holding power for efficient continuous service. A 100 % duty cycle allows the solenoid to remain powered without planned cooling pauses, and the winding may reach a surface temperature of 120 °C without damage. Switching commands are transferred through a DIN EN 175301-803 connector that, together with an IP65 housing, blocks dust and water jets in industrial halls. The armature can change state up to 7 200 times per hour, supporting rapid machine cycles. These electrical features complement the hydraulic limits described earlier to create a compact valve that meets both motion speed and environmental robustness requirements.
Technical Specifications
Cleanliness Class
ISO 4406 20/18/15
Coil Voltage
110 V AC (50/60 Hz)
Duty Cycle
100%
Electrical Connector
DIN EN 175301-803
Holding Power
50 VA
Max Coil Surface Temperature
120 °C
Max Flow
50 l/min
Max Fluid Temperature (nbr)
+80 °C
Max Pressure (p, A, B)
315 bar
Max Pressure (port T, Ac)
160 bar
Max Switching Frequency
7200 1/h
Porting Pattern
ISO 4401-03-02-0-05
Protection Class
IP65
Seal Material
NBR
Size
6
Switch-on Power
220 VA
1620 Old Apex Road
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