Bosch Rexroth | 4WRZ32W6-520-7X6EG24N9EK4D3V
4WRZ32W6-520-7X/6EG24N9EK4/D3V
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The 4WRZ32W6-520-7X/6EG24N9EK4/D3V is a proportional directional valve built by Bosch Rexroth as part of the WRZ Proportional Directional Valves series. It meters hydraulic flow and shifts actuator ports according to an electrical control signal for automated motion control. The valve is supplied in size 32 and follows the ISO 4401-10-08-0-94 mounting pattern for installation on large subplates. Under a 10 bar pressure drop it delivers a nominal flow of 520 l/min, and its pilot stage provides 15.9 l/min as the command signal moves from 0 to 100 percent. The main stage handles operating pressures up to 350 bar. A solenoid coil rated for 1.5 A positions the spool, continuous service is supported by a 100 percent duty cycle, and the winding can reach 150 °C without damage.
Interface and protection features support reliable field use. The housing meets IP65 so dust and fluid spray do not impair function, and power is supplied through a DIN EN 175301-803 connector. An internal ZDR 6 DP0-4X/40YM-W80 pressure reducing valve stabilizes pilot oil. FKM seals resist common hydraulic media and elevated temperatures. Port Y can sustain 30 bar, and the external return line at port T tolerates 150 bar. The assembly weighs 42.2 kg when mounted on a subplate, demanding rigid support but minimizing vibration once secured. System oil must meet ISO 4406 20/18/15 cleanliness to protect the precision spool and maintain service life.
Technical Specifications
Cleanliness Class (main)
ISO 4406 20/18/15
Duty Cycle
100%
Electrical Connection
DIN EN 175301-803
Ingress Protection
IP65
Max Coil Current
1.5 A
Max Coil Temperature
150 °C
Max Operating Pressure (main)
350 bar
Max Pressure (port Y)
30 bar
Max Return Pressure (port T, Ext)
150 bar
Mounting Pattern
ISO 4401-10-08-0-94
Nominal Flow (Δp 10 Bar)
520 l/min
Pilot Oil Flow (0→100%)
15.9 l/min
Pressure Reducing Valve
ZDR 6 DP0-4X/40YM-W80
Seals
FKM (V)
Size
32
Weight (subplate Mounting)
42.2 kg
1620 Old Apex Road
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