Bosch Rexroth | 4WRKE10W8-50L-3X6EG24ETK31F1D3M
4WRKE10W8-50L-3X/6EG24ETK31/F1D3M
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The 4WRKE10W8-50L-3X/6EG24ETK31/F1D3M valve belongs to the 4WRKE Directional Valves series manufactured by Bosch Rexroth for closed-loop hydraulic automation. It shifts flow paths by means of an electro-hydraulic pilot stage and a main spool sized for nominal size 10 ports. The porting pattern follows ISO 4401-05-05-0-94, allowing direct mounting on standard subplates. Integrated electronics run on a 24 V DC supply and interpret a 4–20 mA command signal to position the spool proportionally. The valve withstands operating pressures up to 315 bar on ports p, a, and b, while the main section can pass as much as 170 L/min when fully opened. Pilot oil is taken from and returned to the internal circuit, and a pilot flow of 4.1 L/min is required to move the spool through its full stroke.
Under a pressure drop of 10 bar the unit delivers a nominal flow of 50 L/min, enabling precise metering in medium-size actuator circuits. Response sensitivity remains within 0.5 %, so small input changes produce predictable spool movement, and total hysteresis is limited to 1 % to reduce positioning error. Electronic modules draw a maximum of 72 W during continuous service. Electrical connection is made through a plug built to DIN EN 175201-804, simplifying wiring in control cabinets. An NBR seal set contains hydraulic fluid, and the housing carries an IP65 protection rating against dust and water jets. The assembled valve weighs 8.7 kg, supporting rigid installation on manifolds or machine frames.
Technical Specifications
Command Signal
4 to 20 mA
Electrical Connector
DIN EN 175201-804
Hysteresis
1% Max
Max Flow (main Valve)
170 L/min
Max Operating Pressure (p,a,b)
315 bar
Max Power
72 W
Nominal Flow
50 L/min (Δp 10 bar)
Nominal Size
10
Pilot Oil Flow (step 0–100%)
4.1 L/min (315 bar)
Pilot Oil Supply/drain
Internal
Porting Pattern
ISO 4401-05-05-0-94
Response Sensitivity
0.5% Max
Seal Material
NBR
Supply Voltage
24 V DC
Valve Protection
IP65
Weight
8.7 kg
1620 Old Apex Road
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