Bosch Rexroth | 4WRZE25W6-325-7X6EG24N9EK31F1D3V
4WRZE25W6-325-7X/6EG24N9EK31/F1D3V
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The 4WRZE25W6-325-7X/6EG24N9EK31/F1D3V proportional directional valve belongs to the WRZ Proportional Directional Valves series and is produced by Bosch Rexroth. It meters hydraulic flow and directs actuators in automated equipment by converting an electrical setpoint into controlled spool displacement. The valve operates from a 24 V DC supply and interprets a 4–20 mA command input, allowing closed-loop controllers to vary flow precisely. Coil resistance is 2 Ω at 20 °C, and continuous energization is supported by a 100 % duty cycle together with a maximum coil temperature rating of 150 °C. The integrated amplifier draws up to 1.8 A during normal modulation, while the DIN EN 175201-804 K31 connector provides quick electrical hookup. When this connector is used with the specified cable socket the housing meets IP65, protecting the internal components against dust and water spray.
The valve includes a concealed manual override designated N9 so technicians can shift the spool mechanically during commissioning or power loss. Hydraulic limits reach 350 bar maximum pressure, and the device passes 325 l/min at a 10 bar differential to serve high-flow cylinders or motors. Pilot actuation is handled by size 6 hardware, with option E permitting internal supply and external drain of pilot oil to match differing manifold schemes. Interface dimensions conform to ISO 4401-08-07-0-94, simplifying subplate selection and replacement. A 3 A power-pulse current is available at energization to accelerate spool movement before the circuit returns to its continuous level. Sealing elements are made of FKM, providing resistance to high temperature and synthetic hydraulic fluids, and these components help maintain leakage control throughout the service life.
Technical Specifications
Coil Resistance (20 °c)
2 Ω
Command Value Input
4-20 mA
Duty Cycle
100%
Electrical Connection
DIN EN 175201-804 (K31)
Electronics Current (imax)
1.8 A
Manual Override
Concealed (N9)
Max Coil Temperature
150 °C
Max Operating Pressure
350 bar
Nominal Flow (Δp 10 Bar)
325 l/min
Pilot Oil Supply/drain
E (internal/external)
Pilot Valve Size
6
Porting Pattern
ISO 4401-08-07-0-94
Power Pulse Current
3 A
Protection Class
IP65 (with cable socket)
Seal Material
FKM (V)
Supply Voltage
24 V DC
1620 Old Apex Road
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