Bosch Rexroth | 4WRTE25W6-350L-4X6EG24K31A1M
4WRTE25W6-350L-4X/6EG24K31/A1M
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The 4WRTE25W6-350L-4X/6EG24K31/A1M is produced by Bosch Rexroth for the 4WRTE Directional Control Valves series and is used to direct and meter hydraulic flow in automated machinery. It connects with ports sized to nominal size 25 and passes a rated flow of 350 l/min, while a linear flow characteristic provides proportional metering across the stroke. The spool symbol W6 defines the internal land geometry that shapes the flow path, and the valve withstands operating pressures up to 350 bar on the p, a, and b ports. A 24 VDC supply energizes the solenoids, and the electronics accept a ±10 V command or feedback signal through a differential input with 100 kΩ resistance to minimize loading on the control circuit.
Continuous service is supported by a 100 percent duty cycle, and control accuracy is maintained with hysteresis not exceeding 0.1 percent and response sensitivity within 0.05 percent. Current demand peaks at 1.6 A during actuation, and an IP65 housing protects the assembly against dust ingress and water jets in industrial environments. The coil windings tolerate temperatures up to 150 °C, and the external return line can operate at pressures as high as 250 bar. The unit weighs 16.8 kg, allowing rigid mounting on power unit manifolds or subplates without additional structural support.
Technical Specifications
Command/actual Signal
±10 V (A1)
Duty Cycle
100%
Flow Characteristic
Linear (L)
Hysteresis
≤ 0.1%
Input Resistance (differential)
100 kΩ
Max Coil Temperature
150 °C
Max Current Consumption
1.6 A
Max Operating Pressure (p,a,b)
350 bar
Max Return Pressure T (external)
250 bar
Nominal Size
25
Protection Class
IP65
Rated Flow
350 l/min
Rated Supply Voltage
24 VDC
Response Sensitivity
≤ 0.05%
Spool Symbol
W6
Weight
16.8 kg
1620 Old Apex Road
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