Bosch Rexroth | 4WRZE32E520-7X6EG24N9ETK31F1D3V
4WRZE32E520-7X/6EG24N9ETK31/F1D3V
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The 4WRZE32E520-7X/6EG24N9ETK31/F1D3V valve belongs to the WRZ Proportional Directional Valves series and is produced by Bosch Rexroth for closed-loop control of actuators in hydraulic automation. Its size 32 body provides a large flow path, while the ISO 4401-10-08-0-94 mounting pattern lets the unit fit standard subplates. A nominal flow of 520 l/min at a differential pressure of 10 bar supports fast cylinder or motor movement, and a maximum operating pressure of 350 bar keeps the spool stable under heavy loads. Pilot oil is both supplied and drained internally, which eliminates external pilot lines and shortens installation time. The valve is designed for mineral oil HL or HLP according to DIN 51524, and the main stage requires fluid cleanliness of ISO 4406 (c) 20/18/15 to avoid sticking or accelerated wear.
The integral electronics run from a 24 VDC supply so they can draw power directly from common machine buses. A 4–20 mA command value signal allows simple current-loop control from PLC or DCS hardware. Electrical connection is made through a DIN EN 175201-804 plug that locks in place to prevent vibration-induced disconnection. The enclosure reaches IP65, shielding internal components from dust and water jets encountered on factory floors. A concealed manual override lets maintenance staff shift the spool mechanically during commissioning or power loss without exposing moving parts during normal service. An internal pressure reducing valve, type ZDR 6 DP0-4X/40YM-W80, stabilizes pilot pressure to keep modulation consistent. The valve weighs 42.2 kg, so the mounting surface must support this mass and any dynamic forces generated by the hydraulic circuit.
Technical Specifications
Cleanliness Class (main)
ISO 4406 (c) 20/18/15
Command Value Signal
4-20 mA
Electrical Connection
DIN EN 175201-804
Hydraulic Fluid
Mineral Oil (HL, HLP) DIN 51524
Manual Override
Concealed
Max Operating Pressure (main)
350 bar
Mounting Pattern
ISO 4401-10-08-0-94
Nominal Flow
520 l/min (Δp=10 bar)
Pilot Oil Drain
Internal
Pilot Oil Supply
Internal
Pressure Reducing Valve
ZDR 6 DP0-4X/40YM-W80
Protection Class
IP65
Size
32
Supply Voltage (electronics)
24 VDC
Weight
42.2 kg
1620 Old Apex Road
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