Bosch Rexroth | 4WRZE25E325-7X6EG24N9ETK31A1D3V
4WRZE25E325-7X/6EG24N9ETK31/A1D3V
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The 4WRZE25E325-7X/6EG24N9ETK31/A1D3V proportional directional valve is built by Bosch Rexroth within the WRZ Proportional Directional Valves series. It regulates hydraulic actuators by altering flow paths under electronic control. An ISO 4401-08-07-0-94 mounting interface aligns the unit with common manifold patterns, simplifying block installation. Through a 24 mm P port and 25 mm A, B, and T ports the valve passes up to 325 l/min when the pressure drop is 10 bar. The housing withstands system pressures to 350 bar, allowing use in high-pressure circuits. Electrical operation depends on a 24 VDC supply and a ±10 V command signal that drives the pilot stage. A cold coil resistance of 2 Ω produces a 1.8 A magnet current at rated voltage, delivering full spool displacement. Because the duty cycle is specified at 100 percent the valve can remain energized continuously in demanding automation cycles without thermal derating.
The coil can reach 150 °C, so system designers must provide cooling or derating to remain below this limit during prolonged energization. A DIN EN 175201-804 connector forms the electrical interface, offering a standardized plug for quick wiring in control cabinets. The environmental enclosure reaches IP65, blocking dust ingress and low-pressure water jets in mobile or wash-down settings. Internal drainage is limited by a 30 bar maximum pressure at port T, a constraint that prevents seal extrusion when return lines are restricted. FKM seals resist mineral oils and many synthetic fluids, extending service life in chemically aggressive media. The assembly weighs 18.4 kg, which influences manifold support requirements and handling procedures. These characteristics complete the technical profile needed when integrating the valve into closed-loop hydraulic automation where precise, proportional flow control is required.
Technical Specifications
Coil Resistance (cold)
2 Ω
Command Signal
±10 V
Current Consumption
1.8 A
Duty Cycle
100%
Electrical Connection
DIN EN 175201-804
Max Coil Temperature
150 °C
Max Operating Pressure
350 bar
Max Port T Pressure (internal Drain)
30 bar
Mounting Interface
ISO 4401-08-07-0-94
Nominal Flow
325 l/min (Δp 10 bar)
Port A/b/t Diameter
25 mm
Port P Diameter
24 mm
Protection Class
IP65
Seals
FKM
Supply Voltage
24 VDC
Weight
18.4 kg
1620 Old Apex Road
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