Bosch Rexroth | 4WRZ16E100-7X6EG24N9K4V
4WRZ16E100-7X/6EG24N9K4/V
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The 4WRZ16E100-7X/6EG24N9K4/V belongs to the WRZ Proportional Directional Valves series produced by Bosch Rexroth for closed-loop hydraulic automation. The unit translates a control current into precise spool displacement, directing oil to actuators. A 24 V DC supply voltage lets standard PLC cards energize the solenoid, and a DIN EN 175301-803 connector provides a keyed plug for field wiring. Coil resistance is 4.8 Ω at 20 °C, limiting inrush current, and rises to 7.2 Ω at maximum heating to moderate power draw under load. The winding may reach 150 °C without damage, while a 100 % duty cycle authorizes continuous operation in servo circuits. Installation uses the ISO 4401-07-06-0-94 mounting pattern so the valve drops onto common NG16 subplates, and the 13.4 kg subplate mass helps damp pressure-induced vibration.
A nominal flow of 100 l/min at a 10 bar differential offers predictable metering for medium-size cylinders, yet the main stage passes up to 460 l/min when higher speed is required. Working pressure can climb to 350 bar at the main ports, supporting high-force applications. The external T port withstands 250 bar to handle long return lines, whereas the internal T port limit of 30 bar protects internal galleries from excess back-pressure. Port Y is likewise limited to 30 bar to safeguard the pilot drain. Cleanliness of 20/18/15 ISO 4406(c) is specified for the main flow to minimize spool wear, while 18/16/13 ISO 4406(c) for the pilot flow preserves fine control of the pilot stage.
Technical Specifications
Coil Resistance (20 °c)
4.8 Ω
Coil Resistance (max Hot)
7.2 Ω
Duty Cycle
100%
Electrical Connection
DIN EN 175301-803
Fluid Cleanliness Class (main)
20/18/15 ISO 4406(c)
Fluid Cleanliness Class (pilot)
18/16/13 ISO 4406(c)
Max Coil Temperature
150 °C
Max Main Valve Flow
460 l/min
Max Main Valve Pressure
350 bar
Max Port T Pressure (external)
250 bar
Max Port T Pressure (internal)
30 bar
Max Port Y Pressure
30 bar
Mounting Pattern
ISO 4401-07-06-0-94
Nominal Flow (10 Bar Δp)
100 l/min
Supply Voltage
24 V DC
Weight (subplate)
13.4 kg
1620 Old Apex Road
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