Bosch Rexroth | 4WRPEH6CB40L-2XG24K0A1M-SO43A-1851
4WRPEH6CB40L-2X/G24K0/A1M SO43A-1851
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The 4WRPEH6CB40L-2X/G24K0/A1M SO43A-1851 proportional valve is manufactured by Bosch Rexroth as part of the 4WRP Solenoid Valves series and is used to regulate oil flow in hydraulic automation loops. It combines a nominal size 6 interface with a linear flow characteristic for predictable metering. The spool identified by symbol C offers four switching positions and supports a nominal flow of 40 l/min. Its manifold face follows the ISO 4401-03-02-0-05 porting pattern for direct mounting. Working ports p, a, and b tolerate up to 315 bar, while the tank port endures 250 bar. These limits allow the valve to handle medium-pressure circuits without additional pressure stages.
Electrical control is provided through a ±10 V command signal that meets a 100 kΩ input resistance, and the coil receives a 24 V DC supply with automatic switch-off below 18 V DC. Connection to the machine wiring is made through a 7-pin (6+PE) plug. NBR seals retain hydraulic fluid, and the valve requires oil cleanliness equal to or better than ISO 4406 18/16/13 to maintain service life. The assembly weighs 2.7 kg, making it manageable during installation and maintenance.
Technical Specifications
Cleanliness Class
ISO 4406 18/16/13
Command Input
±10 V (A1)
Electrical Connector
7-pin (6+PE)
Flow Characteristic
Linear
Input Resistance (a1)
100 kΩ
Mass
2.7 kg
Max Pressure (p,a,b)
315 bar
Max Pressure (t)
250 bar
Nominal Flow
40 l/min
Nominal Size
6
Porting Pattern
ISO 4401-03-02-0-05
Seal Material
NBR
Spool Symbol
C
Supply Voltage
24 V DC
Switching Positions
4
Undervoltage Switch-off
18 V DC
1620 Old Apex Road
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