Bosch Rexroth | 4WRZE32W6-520-7X6EG24N9ETK31F1D3M
4WRZE32W6-520-7X/6EG24N9ETK31/F1D3M
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The 4WRZE32W6-520-7X/6EG24N9ETK31/F1D3M proportional directional valve is produced by Bosch Rexroth within the WRZ Proportional Directional Valves series. It regulates cylinder or motor movement in hydraulic automation systems through an electrically driven pilot stage. The solenoid accepts a 24 V DC supply and interprets a 4–20 mA command signal identified as option F1 to set spool position. A cold coil resistance of 2 Ω defines initial current draw, while the design allows a maximum coil current of 2.5 A and a permissible coil temperature up to 150 °C. Electrical connection is made through a plug conforming to DIN EN 175201-804, and an IP65 rating shields live parts from dust and water. On the hydraulic side the valve tolerates operating pressures up to 350 bar and delivers a nominal flow of 520 l/min at a 10 bar pressure drop. Flow paths interface with subplates using the ISO 4401-10-08-0-94 pattern, and each primary port a, b, p, and t has a diameter of 38 mm to support the stated capacity.
Pilot control characteristics influence dynamic response; the pilot stage passes 15.9 l/min of oil when driven from 0 to 100 percent command and displaces 26.5 cm³ over the same range. Port Y, which returns pilot oil, is limited to 30 bar to protect seals and drain lines. A pressure reducing valve designated ZDR 6 DP0-4X/40YM-W80 is incorporated to stabilize pilot supply pressure. The complete unit weighs 42.2 kg, a factor to consider when mounting the manifold or planning service procedures.
Technical Specifications
Coil Resistance (cold, 20°c)
2 Ω
Command Input
4–20 mA (F1)
Electrical Connector
DIN EN 175201-804
Ingress Protection
IP65
Max Coil Current
2.5 A
Max Coil Temperature
150 °C
Max Operating Pressure
350 bar
Nominal Flow
520 l/min (Δp=10 bar)
Pilot Oil Flow (0→100%)
15.9 l/min
Pilot Oil Volume (0→100%)
26.5 cm³
Port Diameter (a,b,p,t)
38 mm
Port Y Max Pressure
30 bar
Porting Pattern
ISO 4401-10-08-0-94
Pressure Reducing Valve
ZDR 6 DP0-4X/40YM-W80
Supply Voltage
24 V DC
Weight
42.2 kg
1620 Old Apex Road
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