Bosch Rexroth | 4WRZE10W8-85-7X6EG24EK31A1V
4WRZE10W8-85-7X/6EG24EK31/A1V
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The 4WRZE10W8-85-7X/6EG24EK31/A1V valve is produced by Bosch Rexroth as part of the WRZ Proportional Directional Valves series and serves to meter hydraulic fluid in closed-loop automation systems. It features a nominal size of 10 for interface compatibility and a pilot stage sized at 6 to limit actuation effort. A nominal flow of 85 l/min at a 10 bar differential supports medium-capacity actuators, while the main ports tolerate operating pressures up to 315 bar for high-pressure circuits. The electronics accept a ±10 V command signal, and a 24 V DC supply powers the internal amplifier so the unit can be driven by standard motion controllers. Housing protection is rated IP65 to resist dust and water during plant operation.
A 15 percent command value overlap establishes a neutral zone that prevents unintended spool travel, and hysteresis is constrained to ≤ 6 percent to maintain repeatable flow characteristics. Continuous current consumption is limited to 1.8 A, with a 3 A power pulse available for rapid spool shifts. The external T port withstands 315 bar, whereas the internal T path and the Y drain line are each limited to 30 bar, guiding manifold design for safe return flow. Electrical connection is made through a DIN EN 175201-804 plug for straightforward wiring, and the assembled valve weighs 8.0 kg, influencing support structure and handling requirements.
Technical Specifications
Command Input Signal
±10 V
Command Value Overlap
15%
Electrical Connector
DIN EN 175201-804
Hysteresis
≤ 6%
Max Current Consumption
1.8 A
Max Operating Pressure (main)
315 bar
Max Port T Pressure (external)
315 bar
Max Port T Pressure (internal)
30 bar
Max Port Y Pressure
30 bar
Nominal Flow (Δp=10 Bar)
85 l/min
Nominal Size
10
Pilot Valve Size
6
Power Pulse Current
3 A
Protection Class
IP65
Supply Voltage
24 V DC
Weight
8.0 kg
1620 Old Apex Road
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