Bosch Rexroth | 4WRZ25E1-325-7X6EG24N9K4M
4WRZ25E1-325-7X/6EG24N9K4/M
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The 4WRZ25E1-325-7X/6EG24N9K4/M proportional directional valve forms part of the WRZ Proportional Directional Valves series manufactured by Bosch Rexroth for hydraulic automation tasks that require accurate flow regulation. It installs on a subplate using the ISO 4401-08-07-0-94 interface, making it compatible with standardized manifolds. A 24 V DC supply energizes the solenoid, and the coil shows a resistance of 4.8 Ω at 20 °C, which limits steady-state current. The actuator can be driven up to 1.5 A to achieve full spool displacement. With a nominal flow of 325 l/min at a 10 bar differential and a maximum operating pressure of 350 bar, the valve suits high-capacity, high-pressure circuits. These ratings allow the unit to direct large volumes of hydraulic oil while maintaining proportional control.
The control stage uses an external pilot oil supply and an external pilot oil drain so that the main ports remain isolated from piloting back pressure. Port diameters are sized for throughput, with A, B, and T at 25 mm and P at 24 mm. Electrical connection is made through a DIN EN 175301-803 plug, while a concealed manual override enables local actuation during commissioning or power loss. The enclosure carries an IP65 protection class to resist dust ingress and low-pressure water jets, and NBR seals contain the hydraulic medium. Overall mass is 18.2 kg, which should be considered when selecting mounting hardware and handling equipment.
Technical Specifications
Coil Resistance (20 °c)
4.8 Ω
Electrical Connection
DIN EN 175301-803
Manual Override
Concealed
Max Operating Pressure
350 bar
Max Solenoid Current
1.5 A
Mounting Interface
ISO 4401-08-07-0-94
Mounting Style
Subplate
Nominal Flow (Δp 10 Bar)
325 l/min
Pilot Oil Drain
External
Pilot Oil Supply
External
Port A/b/t Diameter
25 mm
Port P Diameter
24 mm
Protection Class
IP65
Seal Material
NBR
Supply Voltage
24 V DC
Weight
18.2 kg
1620 Old Apex Road
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