Bosch Rexroth | 4WRKE25E350L-3X6EG24K31A5D3M
4WRKE25E350L-3X/6EG24K31/A5D3M
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The 4WRKE25E350L-3X/6EG24K31/A5D3M is a proportional directional valve from Bosch Rexroth in the 4WRKE Directional Valves series. It directs hydraulic flow in automated circuits where high throughput and pressure stability are required. The valve has nominal size 25 so it fits manifolds designed for large line diameters. Installation follows the ISO 4401-08-07-0-94 mounting pattern, allowing quick exchange with other standard subplates. During operation it passes a nominal flow of 350 L/min, while a permissible flow ceiling of 870 L/min enables short-term peak demand without cavitation. The unit tolerates operating pressures up to 350 bar, supporting heavy-duty actuators. Pilot oil is supplied internally to simplify external plumbing and drained externally so back pressure does not affect spool positioning. The assembly weighs 16.8 kg, which should be considered when sizing the manifold support.
Electronic control is achieved with a differential command signal of ±10 V that positions the spool; an identical ±10 V measurement output reports actual stroke for closed-loop feedback. The electronics are powered from a 24 V DC supply, drawing up to 1.5 A and no more than 72 W, so cabinet power supplies can be sized accordingly. Electrical connection is made through a DIN EN 175201-804 plug, which seals against moisture together with an IP65 housing rating for reliable operation in demanding plant environments. The integrated pressure reducing valve type ZDR 6 DP0-4X/40YM-W80 maintains a stable pilot stage pressure so the main spool responds consistently across the full operating range. These electrical and hydraulic characteristics allow precise flow and pressure modulation within automated hydraulic systems.
Technical Specifications
Command Value (a5)
±10 V
Electrical Connector
DIN EN 175201-804
Ingress Protection
IP65
Mass
16.8 kg
Max Operating Pressure
350 bar
Max Permissible Flow
870 L/min
Max Supply Current
1.5 A
Measurement Output (a5)
±10 V
Mounting Pattern
ISO 4401-08-07-0-94
Nominal Flow
350 L/min
Nominal Size
25
Pilot Oil Drain
External
Pilot Oil Supply
Internal
Power (max)
72 W
Pressure Reducing Valve
ZDR 6 DP0-4X/40YM-W80
Supply Voltage
24 V DC
1620 Old Apex Road
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