Bosch Rexroth | 4WRTE25E220L-4X6EG24K31A5M
4WRTE25E220L-4X/6EG24K31/A5M
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The 4WRTE25E220L-4X/6EG24K31/A5M valve is manufactured by Bosch Rexroth for the 4WRTE Directional Control Valves series and serves to modulate actuator speed and direction in hydraulic automation loops. It is built in nominal size NG 25 and passes a rated 220 l/min at a 5 bar drop per control edge. Flow follows a linear characteristic so the output is proportional to the input command. Mounting uses the ISO 4401-08-08-0-05 pattern, while the pilot stage draws oil internally and returns it externally to keep the main lines clean. The unit accepts an A5 control interface that uses ±10 V signals with an enable line, and it operates on a 24 VDC supply. Spool geometry corresponds to symbol E, defining the metering edges that establish the directional function.
Ports P, A, and B tolerate up to 350 bar, and the external T port handles 250 bar, allowing the valve to work in high-pressure circuits. Solenoid windings draw a maximum of 1.6 A, so drive cards must supply that current without overheating. Wiring connects through a DIN EN 175201-804 plug coded K31, and the housing meets IP65 to resist dust and water jets. Built-in spool position monitoring provides real-time feedback for closed-loop control accuracy. The assembly weighs 16.8 kg, adding mass for stability when fixed to a manifold.
Technical Specifications
Control Interface
A5 (±10 V with enable)
Electrical Connection
DIN EN 175201-804 (K31)
Flow Characteristic
Linear
Max Current Consumption
1.6 A
Max Operating Pressure (p,a,b)
350 bar
Max Return Pressure (port T, External)
250 bar
Nominal Size
NG 25
Pilot Oil Return
External
Pilot Oil Supply
Internal
Porting Pattern
ISO 4401-08-08-0-05
Protection Class
IP65
Rated Flow (Δp = 5 Bar/control Edge)
220 l/min
Spool Position Monitoring
Present
Spool Symbol
E
Supply Voltage (nominal)
24 VDC
Weight
16.8 kg
1620 Old Apex Road
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