Bosch Rexroth | 4WRZ16W6-150-7X6EG24N9EK4D3M
4WRZ16W6-150-7X/6EG24N9EK4/D3M
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The 4WRZ16W6-150-7X/6EG24N9EK4/D3M proportional directional valve is manufactured by Bosch Rexroth as part of the WRZ Proportional Directional Valves series and is intended to meter flow and control actuator direction in hydraulic automation. It is energized by a 24 V DC supply, and the solenoid coil exhibits 4.8 Ω resistance at 20 °C, allowing the driver electronics to establish precise current. The coil can carry up to 1.5 A and supports a 100 % duty cycle, so continuous modulation is possible. Thermal endurance is maintained until the winding reaches 150 °C. Connection is made through a DIN EN 175301-803 plug, and the housing is sealed to IP65 against dust and wash-down water. A concealed manual override lets maintenance staff shift the spool without power.
The valve passes up to 150 l/min at a 10 bar differential, providing the flow needed for medium-capacity cylinders, while its body tolerates system pressures to 350 bar. It mounts on subplates that follow the ISO 4401-07-06-0-94 pattern, simplifying interchangeability within CETOP size 07 manifolds. Pilot oil is sourced internally, and excess pilot fluid is drained externally to minimize back pressure on the control stage. A ZDR 6 DP0-4X/40YM-W80 pressure reducing valve is integrated to hold a stable pilot pressure during dynamic loading. Approved hydraulic media are HL or HLP mineral oils, ensuring seal compatibility and lubrication. The assembly weighs 13.4 kg, which allows straightforward handling and rigid installation within machine frames.
Technical Specifications
Coil Resistance (20 °c)
4.8 Ω
Duty Cycle
100%
Electrical Connection
DIN EN 175301-803
Hydraulic Fluid
Mineral Oil (HL, HLP)
Manual Override
Concealed
Max Coil Temperature
150 °C
Max Current
1.5 A
Max Operating Pressure
350 bar
Nominal Flow (Δp=10 Bar)
150 l/min
Pilot Drain
External
Pilot Supply
Internal
Porting Pattern
ISO 4401-07-06-0-94
Pressure Reducing Valve
ZDR 6 DP0-4X/40YM-W80
Protection Class
IP65
Supply Voltage
24 V DC
Weight
13.4 kg
1620 Old Apex Road
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