Bosch Rexroth | 4WRZ10E50-7X6EG24N9ETK4V
4WRZ10E50-7X/6EG24N9ETK4/V
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The 4WRZ10E50-7X/6EG24N9ETK4/V proportional directional valve is manufactured by Bosch Rexroth as part of the WRZ Proportional Directional Valves series. It meters hydraulic flow in closed-loop automation where precise spool positioning is required. The solenoid accepts a 24 V DC supply, draws up to 1.5 A, and presents a coil resistance of 4.8 Ω at 20 °C so drive electronics can be sized accurately. Continuous operation is possible because the duty cycle is 100%. A DIN EN 175301-803 K4 connector provides the electrical interface and allows quick replacement. The enclosure reaches IP65, so the electronics are guarded against dust and low-pressure water jets. Control accuracy is supported by a hysteresis not exceeding 6 %. When manual intervention is necessary, a concealed N9 override lets technicians shift the spool without energizing the coil.
The valve supports main-line pressures up to 315 bar and withstands internal return pressures up to 30 bar, enabling installation in high-pressure pump circuits and tank lines. At a differential pressure of 10 bar, it delivers a nominal flow of 50 l/min, while the pilot stage requires only 3.5 l/min across its 0–100 % control range, conserving system energy. Both pilot supply and drain paths are internal, designated ET, which eliminates external pilot hoses and simplifies manifold layouts. Mounting follows the ISO 4401-05-05-0-94 porting pattern so it aligns with standard subplates, and the complete assembly weighs 7.8 kg for straightforward handling during maintenance. FKM sealing allows compatibility with a wide range of fluids and elevated temperatures, ensuring leakage control throughout the service life.
Technical Specifications
Coil Resistance (20 °c)
4.8 Ω
Duty Cycle
100%
Electrical Connection
DIN EN 175301-803 (K4)
Hysteresis
≤ 6%
Manual Override
Concealed (N9)
Max Current
1.5 A
Max Operating Pressure (main)
315 bar
Max Return Pressure (t, Internal)
30 bar
Nominal Flow (Δp=10 Bar)
50 l/min
Pilot Oil Flow (0→100%)
3.5 l/min
Pilot Supply/drain
Internal/Internal (ET)
Porting Pattern
ISO 4401-05-05-0-94
Protection Class
IP65
Sealing Material
FKM (V)
Supply Voltage
24 V DC
Weight (subplate Mounting)
7.8 kg
1620 Old Apex Road
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