Bosch Rexroth | 4WRZE25E325-7X6EG24N9ETK31A1D3M
4WRZE25E325-7X/6EG24N9ETK31/A1D3M
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The 4WRZE25E325-7X/6EG24N9ETK31/A1D3M valve is part of the WRZ Proportional Directional Valves series from Bosch Rexroth. It modulates flow and direction in hydraulic automation where accurate position or speed control is needed. The size 25 body provides passage dimensions suitable for medium to high flow circuits, while the E3 spool geometry defines the metering edges for predictable flow-pressure characteristics. A nominal flow of 325 l/min at a 10 bar drop supports fast actuator response in large machines. The valve withstands system pressures up to 350 bar, allowing installation in high-pressure power units. Its solenoids are powered by a 24 V DC supply, and the electronics accept a ±10 V command so motion controllers can issue symmetrical setpoints. Maximum coil current is limited to 1.8 A, helping designers specify driver cards without oversizing. Electrical connection is through a DIN EN 175201-804 plug which simplifies replacement and standardizes wiring.
Installation follows the ISO 4401-08-07-0-94 subplate pattern so the product mates with common manifolds without extra drilling. Both pilot oil supply and pilot oil drain are internal, removing the need for external lines and reducing leak paths. Port Y can be exposed to pressures up to 30 bar, which protects the control stage when back-pressure develops in the tank line. If an external drain is used, port T can return oil at up to 250 bar, whereas an internal drain limits that return pressure to 30 bar; these limits guide circuit designers when selecting drain configurations. The coil insulation endures temperatures as high as 150 °C, ensuring reliability when the valve is mounted near hot power units. A mass of 18.4 kg provides sufficient rigidity to resist vibration on mobile or stationary equipment without requiring added supports.
Technical Specifications
Command Signal
±10 V
Current Consumption Max
1.8 A
Electrical Connection
DIN EN 175201-804
Max Coil Temperature
150 °C
Max Operating Pressure
350 bar
Mounting Pattern
ISO 4401-08-07-0-94
Nominal Flow (Δp=10 Bar)
325 l/min
Pilot Oil Drain
Internal
Pilot Oil Supply
Internal
Port Y Pressure Max
30 bar
Return Port T Pressure Max (ext Drain)
250 bar
Return Port T Pressure Max (int Drain)
30 bar
Size
25
Spool Type
E3
Supply Voltage
24 V DC
Weight
18.4 kg
1620 Old Apex Road
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