Bosch Rexroth | 4WRZE10E85-7X6EG24N9EK31A1V
4WRZE10E85-7X/6EG24N9EK31/A1V
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The 4WRZE10E85-7X/6EG24N9EK31/A1V proportional directional valve is produced by Bosch Rexroth as part of the WRZ Proportional Directional Valves series. It meters hydraulic flow in servo-controlled circuits where precise position and velocity control are required. The unit fits subplates that follow the ISO 4401-05-05-0-94 mounting pattern, allowing straightforward replacement in standardized manifolds. At a pressure drop of 10 bar, it passes a nominal flow of 85 l/min, and it sustains operating pressures up to 315 bar for high-pressure systems. The integrated electronics operate from a 24 V DC supply and accept a ±10 V command signal so machine controllers can issue continuous spool commands. A 15 percent command value overlap defines the neutral deadband, while the on-board amplifier draws up to 1.8 A during modulation. For installation planning, the subplate-mounted assembly weighs 8.0 kg.
The valve housing is rated IP65, so internal components resist dust ingress and low-pressure water jets. Electrical contact is made through a DIN EN 175201-804 connector, providing a secure plug interface for power and command wiring. Pilot oil is taken internally from the pressure port, and the drained pilot flow returns externally, which simplifies manifold routing while preventing backpressure accumulation; port Y must remain below 30 bar to keep pilot stages stable. A concealed manual override identified by code N9 lets maintenance staff shift the spool without electrical power. FKM seals are used to tolerate common hydraulic fluids at elevated temperatures. The hydraulic cleanliness requirement for the main stage is ISO 4406 class 20/18/15, ensuring reliable metering surfaces over long duty cycles.
Technical Specifications
Cleanliness Class (main Valve)
ISO 4406 20/18/15
Command Input
±10 V (A1)
Command Value Overlap
15%
Electrical Connection
DIN EN 175201-804
Manual Override
Concealed (N9)
Max Operating Pressure (main)
315 bar
Mounting Pattern
ISO 4401-05-05-0-94
Nominal Flow (Δp 10 Bar)
85 l/min
Obe Current Consumption
1.8 A (max)
Pilot Oil Drain
External
Pilot Oil Supply
Internal
Port Y Max Pressure
30 bar
Seal Material
FKM
Supply Voltage
24 V DC
Type Of Protection
IP65
Weight (subplate Mounting)
8.0 kg
1620 Old Apex Road
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