Bosch Rexroth | 4WRTE25V350L-4X6EG24K31A1M-280
4WRTE25V350L-4X/6EG24K31/A1M-280
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The 4WRTE25V350L-4X/6EG24K31/A1M-280 from Bosch Rexroth belongs to the 4WRTE Directional Control Valves series and is used to meter fluid and shift flow paths in automated hydraulic circuits. It accepts a 24 VDC supply voltage that powers the proportional solenoids and on-board electronics, while a ±10 V command range lets the control card read standard analog signals. Electrical connection is made through a DIN EN 175201-804 (K31) plug, simplifying cabinet wiring. Response sensitivity is held to ≤ 0.05 %, enabling fine spool movement, and hysteresis stays within ≤ 0.1 %, allowing repeatable flow settings. The valve delivers a rated flow of 350 l/min at a 5 bar differential, and its pilot stage draws 20 l/min when driven from 0 to 100 % at 315 bar, figures that guide power-unit sizing. A porting pattern of ISO 4401-08-08-0-05 aligns the body with common subplates, and a weight of 16.8 kg permits handling with standard assembly fixtures.
The unit withstands operating pressures up to 350 bar at ports P, A, and B, so it can serve high-pressure cylinders or motors; return pressure at port T may reach 250 bar without compromising performance. A recommended maximum flow of 870 l/min defines the upper throughput limit for large actuators, and ISO 4406 cleanliness class 18/16/13 fluid should be maintained to protect internal lands and seals. The housing carries an IP65 rating, keeping dust and water jets from the electronics in outdoor installations. Current draw does not exceed 1.6 A, and power consumption is limited to 72 VA, figures that inform fuse and power-supply selection. These characteristics allow the valve to integrate into demanding hydraulic automation where precise control, high flow, and robust environmental protection are required.
Technical Specifications
Cleanliness Class (iso 4406)
18/16/13
Electrical Connection
DIN EN 175201-804 (K31)
Hysteresis
≤ 0.1 %
Max Current Consumption
1.6 A
Max Flow (recommended)
870 l/min
Max Operating Pressure (p, A, B)
350 bar
Max Power Consumption
72 VA
Max Return Pressure (port T)
250 bar
Pilot Oil Flow (0–100% @315 Bar)
20 l/min
Porting Pattern
ISO 4401-08-08-0-05
Protection Class
IP65
Rated Flow (Δp=5 Bar)
350 l/min
Response Sensitivity
≤ 0.05 %
Supply Voltage
24 VDC
Voltage Input Range (a1)
±10 V
Weight
16.8 kg
1620 Old Apex Road
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