Bosch Rexroth | 4WRKE25E1-350L-3X6EG24K31A1D3M
4WRKE25E1-350L-3X/6EG24K31/A1D3M
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The 4WRKE25E1-350L-3X/6EG24K31/A1D3M proportional directional valve is produced by Bosch Rexroth for the 4WRKE Directional Valves series and regulates flow paths in hydraulic automation systems. A nominal size of 25 establishes the internal passage area, while the ISO 4401-08-07-0-94 porting pattern matches standard subplates for quick installation. The valve delivers 350 L/min at a 10 bar differential, meeting typical actuator demands, and it can pass up to 870 L/min when peak system flow is required. A maximum pressure of 350 bar on ports p, a, and b lets the unit work in high-pressure circuits. During a full command step from 0 to 100 percent, the pilot stage draws 11.7 L/min, moving the main spool without delay. Response sensitivity remains within 0.5 percent, and hysteresis is held below 1 percent, so commanded positions are followed with minimal deviation.
Electrical features are arranged around the DIN EN 175201-804 connector, providing a common interface for machine wiring. Control electronics accept a ±10 V signal, and a 24 V DC supply powers the driver stage. Steady operation draws up to 1.5 A, while short impulses of 3 A are tolerated to overcome static friction at startup. Average power consumption is 24 W to limit heat buildup; brief transients can climb to 72 W without overstressing the coil. The assembled unit weighs 16.8 kg, so mounting surfaces must support this load while maintaining alignment for reliable valve performance.
Technical Specifications
Connector Standard
DIN EN 175201-804
Hysteresis (max)
1%
Impulse Load (max)
3 A
Max Current
1.5 A
Max Flow (permissible)
870 L/min
Max Pressure (p,a,b)
350 bar
Nominal Flow (Δp 10 Bar)
350 L/min
Nominal Size
25
Pilot Oil Flow (step 0–100%)
11.7 L/min
Porting Pattern
ISO 4401-08-07-0-94
Power (average)
24 W
Power (max)
72 W
Response Sensitivity (max)
0.5%
Signal Interface
±10 V
Supply Voltage
24 V DC
Weight
16.8 kg
1620 Old Apex Road
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