Bosch Rexroth | 4WE6R73-6XEG24N9K4A12
4WE6R73-6X/EG24N9K4/A12
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The 4WE6R73-6X/EG24N9K4/A12 is a directional spool valve produced by Bosch Rexroth in the WE Directional Spool Valves series for hydraulic automation that requires electrically actuated flow control. Its nominal size is 6, setting the interface dimensions for common manifold blocks. The porting pattern follows ISO 4401-03-02-0-05 so it fits standardized subplates without modification. A nominal voltage of 24 V DC is specified, and a ±10 % voltage tolerance keeps the solenoid responsive despite supply variations. Electrical demand is defined by a rated current of 1.25 A and a nominal power draw of 30 W, informing power supply sizing. A duty cycle of 100 % ED permits the solenoids to remain energized continuously during long machine cycles. The maximum coil surface temperature is limited to 120 °C, providing a thermal threshold for safe continuous operation.
The valve handles flows up to 80 l/min in direct current service, allowing moderate throughput in compact circuits. Maximum operating pressure at ports p, a, and b is 350 bar, while the return port t is rated for 210 bar, defining the pressure envelope for each connection. A switching frequency of 4.2 operations per second supports rapid directional changes in cyclic machinery. The enclosure carries an IP65 protection class, sealing the unit against dust ingress and water jets in harsh plant environments. A clamping length of 42 mm specifies the space required for securing the solenoid tube assembly to the valve body. Total weight with two solenoids is 1.95 kg, a factor considered when mounting on lightweight manifolds or mobile equipment.
Technical Specifications
Clamping Length
42 mm
Duty Cycle
100% ED
Max Coil Surface Temperature
120 °C
Max Flow (dc)
80 l/min
Max Operating Pressure (p/a/b)
350 bar
Max Pressure (t Port)
210 bar
Max Switching Frequency
4.2 1/s
Nominal Power
30 W
Nominal Size
6
Nominal Voltage
24 V DC
Porting Pattern
ISO 4401-03-02-0-05
Protection Class
IP65
Rated Current (24 V Dc)
1.25 A
Voltage Tolerance
±10%
Weight (two Solenoids)
1.95 kg
1620 Old Apex Road
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