Bosch Rexroth | 4WRKE25E350L-3X6EG24K31A1D3M
4WRKE25E350L-3X/6EG24K31/A1D3M
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The 4WRKE25E350L-3X/6EG24K31/A1D3M proportional directional valve is produced by Bosch Rexroth within the 4WRKE Directional Valves series. It meters hydraulic flow in closed-loop automation circuits where precise spool positioning is needed. The solenoid accepts a 24 V DC supply voltage, and its coil draws a maximum continuous current of 1.5 A while tolerating impulse loads up to 3 A during rapid command changes. Response sensitivity is limited to 0.5 % so small input signals translate into measurable movement, and overall hysteresis remains within 1 %, which keeps the output stable when the command is reversed. Nominal size 25 establishes the mounting and flow cross-section, supporting a nominal flow of 350 L/min at a 10 bar pressure drop. Pilot oil is supplied and drained externally, allowing the main gallery to remain free of pilot pressure interactions.
The main ports withstand operating pressures up to 350 bar, enabling the valve to control high-pressure actuators without fatigue. When fully open, the permissible flow reaches 870 L/min, giving designers headroom for peak demand events. Pilot control requires only 11.7 L/min at 315 bar, which minimizes energy consumption by the pilot stage. Port T must see less than 10 bar static pressure so the spool can return to neutral without restriction. Electrical ingress protection is rated IP65, meaning the housing resists dust and low-pressure water jets common in industrial settings. The assembly weighs 16.8 kg, so mounting structures must support that mass and allow service access. These parameters complete the functional envelope for integrating the valve into hydraulic manifolds.
Technical Specifications
Hysteresis
≤ 1%
Impulse Load
≤ 3 A
Max Current
1.5 A
Max Operating Pressure (p, A, B)
350 bar
Max Permissible Flow
870 L/min
Nominal Flow (Δp 10 Bar)
350 L/min
Nominal Size
25
Pilot Oil Flow (x/y, 315 Bar)
11.7 L/min
Pilot Oil Supply/drain
External/external
Port T Static Pressure
< 10 bar
Response Sensitivity
≤ 0.5%
Supply Voltage
24 V DC
Valve Protection
IP65
Weight
16.8 kg
1620 Old Apex Road
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