Bosch Rexroth | 4WRZE16E1-150-7X6EG24N9ETK31A1D3V
4WRZE16E1-150-7X/6EG24N9ETK31/A1D3V
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The 4WRZE16E1-150-7X/6EG24N9ETK31/A1D3V proportional directional valve belongs to the WRZ Proportional Directional Valves series from Bosch Rexroth and is used to meter oil flow and select actuator paths in hydraulic automation systems. It is powered by a 24 V DC supply that feeds the onboard amplifier, while a ±10 V command signal provides the proportional reference for spool positioning. The solenoid coil shows a resistance of 2 Ω at 20 °C and rises to 3 Ω when hot, so current remains within design limits; the maximum electronics current consumption is 1.8 A. Wiring is completed through a DIN EN 175201-804 connector that supports quick replacement in the field. A concealed manual override permits local movement of the spool without compromising enclosure integrity, and an IP65 rating protects internal components from dust and water spray. The unit’s mass of 13.6 kg must be considered when sizing manifold supports and transport fixtures.
The hydraulic section tolerates a main operating pressure of 350 bar, allowing the valve to work in high-pressure power units, while the internal drain at port T is rated for 30 bar to prevent back-pressure related faults. Under a 10 bar differential the valve passes a nominal flow of 150 l/min, and the pilot stage requires 5.5 l/min to shift the spool from zero to full stroke. Pilot pressure stability is maintained by the integrated ZDR 6 DP0-4X/40YM-W80 pressure reducing valve, which decouples the control chamber from main line fluctuations. Thermal endurance is indicated by a maximum coil temperature of 150 °C; operation must stay below this limit to avoid insulation damage. Fluid sealing is handled by FKM elastomers that resist mineral oil and elevated temperatures, ensuring long service life without leakage.
Technical Specifications
Coil Resistance (cold, 20°c)
2 Ω
Coil Resistance (max Hot)
3 Ω
Command Signal
±10 V
Electrical Connector
DIN EN 175201-804
Electronics Current Consumption (max)
1.8 A
Manual Override
Concealed
Max Coil Temperature
150 °C
Max Operating Pressure (main)
350 bar
Max Port T Pressure (internal Drain)
30 bar
Nominal Flow (delta P = 10 Bar)
150 l/min
Pilot Oil Flow (0→100% Step)
5.5 l/min
Pressure Reducing Valve
ZDR 6 DP0-4X/40YM-W80
Seal Material
FKM
Supply Voltage
24 V DC
Type Of Protection
IP65
Weight
13.6 kg
1620 Old Apex Road
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