Bosch Rexroth | 4WRZE25W6-325-7X6EG24N9ETK31A1V
4WRZE25W6-325-7X/6EG24N9ETK31/A1V
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The 4WRZE25W6-325-7X/6EG24N9ETK31/A1V proportional directional valve is produced by Bosch Rexroth for the WRZ Proportional Directional Valves series. It regulates hydraulic actuators in automated systems and uses an internal pilot oil supply and drain to simplify circuit layout. The unit responds to a ±10 V command signal, with onboard electronics powered by a 24 V DC supply. A mounting interface following ISO 4401-08-07-0-94 enables secure connection to a subplate. Under a 10 bar differential pressure the valve passes a nominal flow of 325 l/min, and the main stage withstands operating pressures up to 350 bar. The design also permits a return pressure at the T port of up to 30 bar when internal pilot channels are used.
The electronics feature a 15 % command value overlap to stabilize the neutral position, and the solenoid is built for a 100 % duty cycle to allow continuous operation. Wiring is completed through a connector that matches DIN EN 175201-804, while a concealed manual override lets technicians shift the spool during setup or power loss. The coil tolerates temperatures up to 150 °C and draws a maximum current of 2.5 A. An IP65 housing protects against dust ingress and water jets, and the overall assembly weighs 18.4 kg, which should be considered when selecting a manifold or mounting bracket.
Technical Specifications
Command Signal (a1)
±10 V
Command Value Overlap
15 %
Duty Cycle
100 %
Electrical Connection (k31)
DIN EN 175201-804
Manual Override
Concealed
Max Coil Temperature
150 °C
Max Current
2.5 A
Mounting Interface
ISO 4401-08-07-0-94
Nominal Flow
325 l/min (∆p = 10 bar)
Operating Pressure (main Valve)
350 bar Max
Pilot Oil Drain
Internal
Pilot Oil Supply
Internal
Return Pressure At T (internal)
30 bar Max
Supply Voltage (electronics)
24 V DC
Type Of Protection
IP65
Weight
18.4 kg
1620 Old Apex Road
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