Bosch Rexroth | 4WRZE10W8-85-7X6EG24N9K31A1D3V
4WRZE10W8-85-7X/6EG24N9K31/A1D3V
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The 4WRZE10W8-85-7X/6EG24N9K31/A1D3V proportional directional valve is part of the WRZ Proportional Directional Valves series and is manufactured by Bosch Rexroth. It varies spool position electronically for closed-loop hydraulic automation. The device accepts a command signal of ±10 V to modulate flow in both directions, while a 24 V DC supply powers the onboard electronics that translate this signal into coil current. Continuous service is supported by a 100 % duty cycle so thermal limits do not interrupt production cycles. The electrical connection uses a DIN EN 175201-804 plug for straightforward cabinet wiring, and an IP65 housing shields internal parts from dust and low-pressure water. Valve size 10 determines the mounting pattern for mid-flow manifolds, and the assembly weighs 8.0 kg, which affects support structure selection.
The valve delivers 85 l/min at a 10 bar pressure drop, meeting medium-capacity circuit requirements. Its main stage endures up to 315 bar, the same limit applied to port T when an external drain is used, whereas port Y is restricted to 30 bar to protect the pilot section. Normal control draws a maximum of 1.8 A, and a 3 A power pulse is available for rapid spool shifts. A concealed manual override allows mechanical actuation during commissioning without exposing components to debris. Pilot pressure is stabilized by the built-in ZDR 6 DP0-4X/40YM-W80 pressure reducing valve, preventing performance drift when supply pressure fluctuates. FKM seals tolerate common hydraulic fluids and higher temperatures, maintaining tight leakage control across the specified pressure range.
Technical Specifications
Command Signal
±10 V
Duty Cycle
100%
Electrical Connection
DIN EN 175201-804
Manual Override
Concealed
Max Operating Pressure (main)
315 bar
Max Port T Pressure (ext. Drain)
315 bar
Max Port Y Pressure
30 bar
Max Supply Current
1.8 A
Nominal Flow (Δp=10 Bar)
85 l/min
Power Pulse Current
3 A
Pressure Reducing Valve
ZDR 6 DP0-4X/40YM-W80
Seal Material
FKM
Supply Voltage
24 V DC
Type Of Protection
IP65
Valve Size
10
Weight
8.0 kg
1620 Old Apex Road
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