Bosch Rexroth | 4WRKE25W8-350L-3X6EG24EK31F1D3M
4WRKE25W8-350L-3X/6EG24EK31/F1D3M
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The 4WRKE25W8-350L-3X/6EG24EK31/F1D3M directional valve belongs to the 4WRKE Directional Valves series from Bosch Rexroth and is used to control hydraulic actuators. It employs a W8 spool and accepts a 4 to 20 mA command and feedback signal for proportional positioning. A 24 VDC supply powers its electronics, and electrical consumption reaches 72 W. The valve has nominal size 25 and delivers 350 L/min at a 10 bar differential pressure. Internal pilot oil supply simplifies piping, while the pilot oil drains externally through port Y. Subplate attachment follows ISO 4401-08-07-0-94, and the electrical interface is provided by a DIN EN 175201-804 connector.
The main stage can pass up to 870 L/min and tolerate 350 bar on ports p, a, and b, so it suits high-pressure circuits with large flow demands. The pilot stage requires 11.7 L/min at 315 bar to shift the spool, which promotes rapid response to control changes. Mineral oil of the HL or HLP classes is the specified pressure medium to maintain sealing and lubrication. An IP65 rating protects the housing against dust and water jets likely in production areas. The valve weighs 16.8 kg, a figure that influences handling and mounting hardware selection.
Technical Specifications
Command/actual Interface
4 to 20 mA
Electrical Connector
DIN EN 175201-804
Max Electrical Power
72 W
Max Main Valve Flow
870 L/min
Max Operating Pressure (p,a,b)
350 bar
Mounting Interface
ISO 4401-08-07-0-94
Nominal Flow (Δp=10 Bar)
350 L/min
Nominal Size
25
Pilot Oil Drain
External (port Y)
Pilot Oil Flow (step, 315 Bar)
11.7 L/min
Pilot Oil Supply
Internal
Pressure Fluid
Mineral Oil (HL, HLP)
Protection Rating
IP65
Spool Type
W8
Supply Voltage
24 VDC
Weight
16.8 kg
1620 Old Apex Road
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