Bosch Rexroth | 4WRZ10W6-85-7X6EG24N9ETK4D3M
4WRZ10W6-85-7X/6EG24N9ETK4/D3M
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The 4WRZ10W6-85-7X/6EG24N9ETK4/D3M is produced by Bosch Rexroth within the WRZ Proportional Directional Valves series and is used to control flow and direction in hydraulic automation systems. It handles a nominal flow of 85 l/min at a 10 bar differential pressure, providing adequate volume for medium-size actuators. The main stage tolerates up to 315 bar so it can be placed in high-pressure lines. Its solenoid operates on a 24 V DC supply, and a coil resistance of 4.8 Ω at 20 °C matches this voltage to typical drive electronics. A maximum continuous current of 1.5 A and a 100 % duty cycle permit uninterrupted use. Thermal stability is maintained until the coil reaches 150 °C. Connection is made through a DIN EN 175301-803 plug that supports quick interchange. A concealed manual override allows local shifting without exposing internal parts to debris.
The ISO 4401-05-05-0-94 porting pattern lets the body mount directly on standard size 05 subplates. Pilot oil supply is internal, and pilot oil drain is also internal, eliminating external pilot lines. The internal return port can accept back-pressure up to 30 bar. Pilot pressure is stabilized by a ZDR 6 DP0-4X/40YM-W80 pressure reducing valve fitted to the assembly. NBR seals are used to maintain compatibility with common mineral oils while limiting leakage. The unit weighs 7.8 kg, which must be supported by a rigid manifold to avoid vibration during service.
Technical Specifications
Coil Resistance (20 °c)
4.8 Ω
Duty Cycle
100%
Electrical Connection
DIN EN 175301-803 plug
Manual Override
Concealed
Max Coil Temperature
150 °C
Max Current
1.5 A
Max Main Pressure
315 bar
Nominal Flow (∆p=10 Bar)
85 l/min
Pilot Oil Drain
Internal
Pilot Oil Supply
Internal
Porting Pattern
ISO 4401-05-05-0-94
Pressure Reducing Valve
ZDR 6 DP0-4X/40YM-W80
Return Port Max Pressure (internal)
30 bar
Seal Material
NBR
Supply Voltage
24 V DC
Weight
7.8 kg
1620 Old Apex Road
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