Bosch Rexroth | 4WRZ16E1-150-7X6EG24N9ETK4V
4WRZ16E1-150-7X/6EG24N9ETK4/V
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The 4WRZ16E1-150-7X/6EG24N9ETK4/V valve belongs to the WRZ Proportional Directional Valves series and is manufactured by Bosch Rexroth for precise hydraulic automation duties. It is built to meter flow and control actuator direction in closed-loop systems. The unit operates from a 24 V DC supply, and the pilot stage draws up to 1.5 A to generate the required magnetic force. A 100 percent duty cycle allows continuous energization without thermal derating during long production shifts. The size 16 body follows the ISO 4401-07-06-0-94 mounting interface, so it fits standard subplates and manifolds. With a nominal flow of 150 L/min at a pressure drop of 10 bar, it suits medium throughput circuits, while the pilot stage passes 5.5 L/min when commanded from 0 to 100 percent for rapid spool positioning. In subplate configuration the assembly weighs 13.4 kg, which simplifies overhead handling during service.
For the main stage the maximum attainable flow reaches 460 L/min, supporting large cylinder movements without excessive pressure loss. The valve withstands operating pressures up to 350 bar on the supply ports and tolerates 250 bar on the external drain connection to the tank. Port Y may be loaded to 30 bar, enabling remote draining in high back-pressure installations. Mineral oil classified as HL or HLP according to DIN 51524 is the approved hydraulic fluid, ensuring compatibility with internal seals and damping clearances. Electrical feedback remains stable because hysteresis is limited to 6 percent, delivering repeatable spool positioning across the control range. A coil temperature ceiling of 150 °C protects the winding insulation under hot ambient and oil conditions, while an IP65 protection class blocks dust and low-pressure water jets so cabinet-free mounting is possible.
Technical Specifications
Duty Cycle
100%
Hydraulic Fluid
Mineral Oil (HL, HLP) DIN 51524
Hysteresis
≤ 6%
Max Coil Temperature
150 °C
Max Current
1.5 A
Max Main Valve Flow
460 l/min
Max Operating Pressure (main)
350 bar
Max Tank Port Pressure (ext. Drain)
250 bar
Mounting Interface
ISO 4401-07-06-0-94
Nominal Flow (Δp=10 Bar)
150 l/min
Pilot Oil Flow (0 To 100% Step)
5.5 l/min
Port Y Max Pressure
30 bar
Protection Class
IP65
Size
16
Supply Voltage
24 V DC
Weight (subplate Mounting)
13.4 kg
1620 Old Apex Road
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