Bosch Rexroth | 4WRZ10E85-7X6EG24N9ETK4V
4WRZ10E85-7X/6EG24N9ETK4/V
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The 4WRZ10E85-7X/6EG24N9ETK4/V valve is manufactured by Bosch Rexroth for the WRZ Proportional Directional Valves series. It controls flow and direction in hydraulic actuators by varying the spool position through an energized solenoid. A nominal flow of 85 l/min at a differential pressure of 10 bar allows the valve to supply medium-sized cylinders and motors. The main ports withstand a maximum operating pressure of 315 bar so it can be used in high-pressure circuits. The pilot stage is size 6, giving a compact interface between the pilot and main stage. Electrical actuation relies on a 24 V DC coil with a cold resistance of 4.8 Ω, and the driver may supply up to 1.5 A to reach full spool stroke. A DIN EN 175301-803 plug provides the required connection, while a concealed manual override permits local positioning without removing the coil.
The housing endures ambient temperatures up to 70 °C for installation near warm power units. Fluid cleanliness must meet ISO 4406 class 20/18/15 to protect the precision metering edges. The valve is intended for use with mineral oil types HL or HLP, matching the seal material. FKM seals prevent leakage and tolerate the specified oil and temperature range. A return port may see pressures to 30 bar when the internal drain is used, and the porting pattern follows ISO 4401-05-05-0-94 to fit standard subplates. Ingress protection is rated IP65, so the enclosure resists dust and low-pressure water jets when the connector is correctly installed. The total weight is 7.8 kg, which influences manifold support requirements.
Technical Specifications
Ambient Temperature Max
+70 °C
Cleanliness Class (main)
ISO 4406 20/18/15
Coil Resistance (cold 20 °c)
4.8 Ω
Coil Voltage
24 V DC
Electrical Connection
DIN EN 175301-803
Hydraulic Fluid
Mineral Oil (HL, HLP)
Manual Override
Concealed
Max Current
1.5 A
Max Operating Pressure (main)
315 bar
Nominal Flow
85 l/min (Δp 10 bar)
Pilot Valve Size
6
Porting Pattern
ISO 4401-05-05-0-94
Return Port Max Pressure (int Drain)
30 bar
Seals
FKM
Type Of Protection
IP65
Weight
7.8 kg
1620 Old Apex Road
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