Bosch Rexroth | 4WRZ10W6-50-7X6EG24N9K4D3V
4WRZ10W6-50-7X/6EG24N9K4/D3V
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The 4WRZ10W6-50-7X/6EG24N9K4/D3V valve is produced by Bosch Rexroth within the WRZ Proportional Directional Valves series. It meters pilot and main flow to control actuator speed and direction in hydraulic automation circuits. A nominal flow of 50 l/min at a 10 bar differential enables repeatable performance in medium-size systems. The pilot stage delivers 3.5 l/min when commanded from 0 to 100 %, supplying the main spool with adequate pressure modulation. That pilot movement requires a pilot oil volume of 1.7 cm³, so response time stays low during rapid cycling. Continuous service is supported by a 100 % duty cycle, and the coil can tolerate temperatures up to 150 °C without thermal damage. Drive electronics supply no more than 1.5 A, a value that matches the 4.8 Ω solenoid resistance measured at 20 °C. Wiring is completed through a DIN EN 175301-803 connector, which aligns with standard harness parts used in industrial machinery.
The main stage withstands 315 bar of operating pressure on the supply line, allowing direct installation in high-pressure manifolds. The same 315 bar limit applies to return pressure at port T when an external drain is used, supporting circuits that carry back pressure. Pilot drain port y should not exceed 30 bar, protecting the control section from overload. A maximum main valve flow of 170 l/min covers transient peak demands beyond the nominal rating without spooling instability. Hysteresis remains below 6 %, providing predictable spool positioning for closed-loop control systems. The porting pattern follows ISO 4401-05-05-0-94, so the unit bolts to size 10 subplates without an adapter. An IP65 protection rating shields the solenoid assembly against dust ingress and water jets during wash-down maintenance. The valve with its size 10 subplate weighs 7.8 kg, allowing installation by a single technician.
Technical Specifications
Duty Cycle
100%
Electrical Connection
DIN EN 175301-803
Hysteresis (max)
6%
Max Coil Temperature
150 °C
Max Current
1.5 A
Max Drain Port Pressure (y)
30 bar
Max Main Valve Flow
170 l/min
Max Operating Pressure (main)
315 bar
Max Return Pressure (port T, Ext. Drain)
315 bar
Nominal Flow (Δp 10 Bar)
50 l/min
Pilot Oil Flow (0-100%)
3.5 l/min
Pilot Oil Volume (0-100%)
1.7 cm3
Porting Pattern
ISO 4401-05-05-0-94
Solenoid Resistance (20 °c)
4.8 Ω
Type Of Protection
IP65
Weight (subplate, Size 10)
7.8 kg
1620 Old Apex Road
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