Bosch Rexroth | 4WRZ10W8-50-7X6EG24N9TK4V
4WRZ10W8-50-7X/6EG24N9TK4/V
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The 4WRZ10W8-50-7X/6EG24N9TK4/V proportional directional valve belongs to the WRZ Proportional Directional Valves series from Bosch Rexroth and modulates hydraulic flow for automated actuator control. The internal driver accepts a 24 V DC supply, while a maximum coil current of 1.5 A produces the magnetic force needed for spool displacement. Coil resistance measures 4.8 Ω at 20 °C and rises to 7.2 Ω when the winding is hot, so the power amplifier can compensate for temperature change. Continuous service is possible because the solenoid is rated for a 100 percent duty cycle, and insulation tolerates a coil temperature of 150 °C without damage. The valve remains operational in ambient temperatures up to 70 °C. Electrical hookup uses a DIN EN 175301-803 connector, and the housing carries an IP65 rating that blocks dust and low-pressure water from sensitive components.
A maximum main flow of 170 l/min allows the valve to handle large circuits, while a nominal flow of 50 l/min at a 10 bar pressure drop supports accurate metering in servo loops. The body withstands operating pressures up to 315 bar on the main ports. Hydraulic fluid can reach 80 °C, and viscosities up to 380 mm²/s are acceptable without impairing response. Sealing elements are made from FKM to resist heat and common hydraulic oils. A concealed manual override lets technicians shift the spool mechanically during setup or fault recovery without exposing the mechanism to contamination. These design limits deliver consistent performance in closed-loop hydraulic automation systems.
Technical Specifications
Ambient Temperature Max
70 °C
Coil Resistance (20 °c)
4.8 Ω
Coil Resistance (max Hot)
7.2 Ω
Duty Cycle
100%
Electrical Connection
DIN EN 175301-803
Hydraulic Fluid Temp Max
80 °C
Kinematic Viscosity Max
380 mm2/s
Manual Override
Concealed
Max Coil Temperature
150 °C
Max Current
1.5 A
Max Main Flow
170 l/min
Max Operating Pressure (main)
315 bar
Nominal Flow @ ∆p 10 Bar
50 l/min
Seal Material
FKM
Supply Voltage (electronics)
24 V DC
Type Of Protection
IP65
1620 Old Apex Road
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