Bosch Rexroth | 4WRKE25W6-350L-3X6EG24ETK31A1D3M
4WRKE25W6-350L-3X/6EG24ETK31/A1D3M
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The 4WRKE25W6-350L-3X/6EG24ETK31/A1D3M directional valve is produced by Bosch Rexroth in the 4WRKE Directional Valves series to meter hydraulic flow in automated motion systems. With a nominal size of 25, it is proportioned for mid-range circuit capacities, and it delivers a nominal flow of 350 L/min to actuators when pressure differentials match design limits. A command and actual signal range of ±10 V allows the electronic controller to position the spool accurately, supported by a maximum response sensitivity of 0.5 % so small input changes produce measurable flow variation. Hysteresis is limited to 1 %, reducing deviation between forward and reverse movements. The unit operates on a 24 VDC supply and draws up to 72 W, energizing a removable coil solenoid that can be replaced without disturbing the hydraulic stack. An IP65 ingress rating protects the enclosure against dust and water jets, permitting installation close to machinery.
For manifold mounting, the valve uses the ISO 4401-08-07-0-94 interface, and electrical connection is made through a DIN EN 175201-804 plug, which simplifies wiring in modular power packs. System pressure can reach 350 bar on ports P, A, and B, while the hydraulic passage tolerates as much as 870 L/min when peak demand rises above the nominal figure. During step inputs the pilot stage draws 11.7 L/min, and both pilot supply and drain are taken internally so no external lines are required. The assembly weighs 16.8 kg, which aids stability on the manifold and minimizes vibration. These characteristics define a valve suited to closed-loop directional control in presses, injection machines, and other high-flow equipment.
Technical Specifications
Command/actual Signal
±10 V
Electrical Connector
DIN EN 175201-804
Hysteresis (max)
1%
Ingress Protection
IP65
Max Operating Pressure (p/a/b)
350 bar
Max Permissible Flow
870 L/min
Mounting Interface
ISO 4401-08-07-0-94
Nominal Flow
350 L/min
Nominal Size
25
Pilot Oil Flow (step Input)
11.7 L/min
Pilot Supply/drain
Internal/Internal
Power (max)
72 W
Response Sensitivity (max)
0.5%
Solenoid Type
Removable Coil
Supply Voltage
24 VDC
Weight
16.8 kg
1620 Old Apex Road
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