Bosch Rexroth | 4WRKE25E350L-3X6EG24TK31A1D3M-574
4WRKE25E350L-3X/6EG24TK31/A1D3M-574
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The 4WRKE25E350L-3X/6EG24TK31/A1D3M-574 valve is manufactured by Bosch Rexroth and is part of the 4WRKE Directional Valves series. Designed for hydraulic automation, it meters flow to actuators according to an electro-hydraulic command. The unit is built in nominal size 25 so it fits manifolds that share this cavity dimension. Its porting pattern follows ISO 4401-08-07-0-94, enabling direct mounting on standard subplates without adapter blocks. A linear characteristic curve ensures proportional flow change across the control range, while the spool symbol E defines the internal land geometry used to connect ports during actuation. The solenoid requires a 24 VDC supply, and the electrical connection is provided through a DIN EN 175201-804 plug, simplifying wiring in control cabinets. Rated pressure of 350 bar on ports P, A, and B allows the valve to handle high-pressure circuits common in industrial presses, and an IP65 protection level keeps the housing sealed against dust and low-pressure water jets.
The valve delivers a nominal flow of 350 L/min at a 10 bar differential so it can maintain rapid cylinder movements under moderate pressure loss, while the maximum permissible flow reaches 870 L/min for short peaks during dynamic cycles. Pilot oil consumption is limited to 11.7 L/min at 315 bar, which helps reduce heat generation in the pilot stage. Control accuracy is supported by hysteresis not exceeding 1% and a response sensitivity of 0.5%, allowing repeatable positioning of hydraulic actuators. Command and feedback signals use a ±10 V interface so the valve can integrate with common analog controllers, and inductive position feedback reports spool travel for closed-loop regulation. The assembly weighs 16.8 kg, a mass that operators must consider when selecting mounting hardware.
Technical Specifications
Characteristic Curve
Linear (L)
Electrical Connection
DIN EN 175201-804
Hysteresis
≤ 1%
Interface (command/actual)
±10 V (A1)
Max Permissible Flow
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, 315 Bar)
11.7 L/min
Porting Pattern
ISO 4401-08-07-0-94
Position Feedback
Inductive
Response Sensitivity
≤ 0.5%
Spool Symbol
E
Supply Voltage
24 VDC
Valve Protection
IP65
Weight
16.8 kg
1620 Old Apex Road
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