Bosch Rexroth | 4WRTE25E350L-4X6EG24ETK31A1M
4WRTE25E350L-4X/6EG24ETK31/A1M
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The 4WRTE25E350L-4X/6EG24ETK31/A1M valve is manufactured by Bosch Rexroth as part of the 4WRTE Directional Control Valves series. It regulates hydraulic cylinders or motors in automated machinery by metering flow with a linear spool profile. The nominal size NG 25 determines the interface dimensions, while the porting pattern ISO 4401-08-08-0-05 matches standard subplates for quick installation. A rated flow of 350 l/min at a 5 bar differential and a maximum operating pressure of 350 bar make it suitable for high-volume, high-pressure circuits. Internal pilot oil supply and return simplify plumbing because no external pilot lines are needed. Integrated spool position monitoring provides electrical feedback for closed-loop motion control. The electronics accept a ±10 V command/actual interface with an input resistance of 100 kΩ, enabling connection to common motion controllers.
Electronics for this model run from a 24 VDC supply and may draw up to 1.6 A, which corresponds to a peak power requirement of 72 VA during dynamic spool shifts. A relative duty cycle of 100 % allows uninterrupted operation in production lines, keeping valve dynamics stable during tightly cycled position loops. The housing reaches protection class IP65 when the DIN EN 175201-804 plug coded K31 is installed, providing sealing against dust ingress and low-pressure water spray. All wiring passes through this single connector to streamline replacement tasks, and service technicians can disconnect the plug without disturbing hydraulic lines, which reduces downtime during maintenance. The valve assembly weighs 16.8 kg, so standard manifold bolts secure it firmly on equipment frames without special lifting aids.
Technical Specifications
Command/actual Interface
±10 V (A1)
Current Consumption (max)
1.6 A
Electrical Connection
DIN EN 175201-804 (K31)
Flow Characteristic
Linear (L)
Input Resistance (a1)
100 kΩ
Maximum Operating Pressure
350 bar
Nominal Size
NG 25
Pilot Oil Supply/return
Internal/Internal (ET)
Porting Pattern
ISO 4401-08-08-0-05
Power Consumption (max)
72 VA
Protection Class
IP65
Rated Flow (∆p=5 Bar/control Edge)
350 l/min
Relative Duty Cycle
100%
Spool Position Monitoring
Integrated (M)
Supply Voltage (electronics)
24 VDC
Weight
16.8 kg
1620 Old Apex Road
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