Bosch Rexroth | 4WRZE25E1-325-7X6EG24N9EK31A1V
4WRZE25E1-325-7X/6EG24N9EK31/A1V
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The 4WRZE25E1-325-7X/6EG24N9EK31/A1V valve belongs to the WRZ Proportional Directional Valves series produced by Bosch Rexroth for closed-loop hydraulic automation. It converts an analog command signal of ±10 V into proportional spool travel that meters flow to connected actuators. The unit mounts on a subplate and follows the ISO 4401-08-07-0-94 porting pattern, ensuring interchangeability with common manifolds. Under a 10 bar pressure drop the nominal flow reaches 325 l/min, and the construction withstands operating pressures up to 350 bar for demanding industrial circuits. Power for the integrated electronics is supplied at 24 V DC, while reliable operation is maintained within a 19–35 V DC range. Connection to the machine harness is made through a DIN EN 175201-804 plug, which shortens installation time and promotes secure strain relief.
Pilot oil is sourced internally and drained externally, reducing back-pressure effects on the control stage. Spool positioning repeatability is supported by hysteresis kept at or below 6 percent. The housing carries an IP65 ingress rating, protecting internal components from dust and low-pressure water jets once the mating connector is locked. Hydraulic media can operate between −20 and +80 °C, allowing the valve to handle most mineral-based fluids in stationary or mobile equipment. Maximum current consumption is limited to 1.8 A, so standard 24 V power supplies are sufficient. A concealed manual override, marked N9, lets service personnel shift the spool mechanically when electrical power is absent. The assembly weighs 18.4 kg, a factor to consider when specifying subplate thickness and lifting methods.
Technical Specifications
Command Signal
±10 V (A1)
Electrical Connection
DIN EN 175201-804 Plug
Fluid Temp Range
−20 to +80 °C
Hysteresis
≤ 6%
Ip Rating
IP65
Manual Override
Concealed (N9)
Max Current Consumption
1.8 A
Maximum Operating Pressure
350 bar
Mounting Type
Subplate Mounting
Nominal Flow (∆p = 10 Bar)
325 l/min
Pilot Oil Drain
External
Pilot Oil Supply
Internal
Porting Pattern
ISO 4401-08-07-0-94
Supply Voltage
24 VDC
Voltage Range
19 to 35 VDC
Weight
18.4 kg
1620 Old Apex Road
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