Bosch Rexroth | 4WRA6W1-15-2XG24N9K4V
4WRA6W1-15-2X/G24N9K4/V
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The 4WRA6W1-15-2X/G24N9K4/V valve belongs to the 4WRA Proportional Directional Valves series and is produced by Bosch Rexroth for closed-loop hydraulic automation. It meters flow by shifting a proportional spool according to an electric command. The nominal size 6 platform suits compact manifolds where space is limited. A nominal flow of 15 l/min defines the steady-state capacity at rated pressure drop, while a maximum flow of 42 l/min covers short peaks during rapid actuator movement. The ISO 4401-03-02-0-05 porting pattern matches standard NG6 subplates, simplifying block design. The coil is powered from a 24 VDC supply, and a K4 electrical connector with two signal pins plus protective earth streamlines wiring. An IP65 protection class shields the coils and internal components from dust and low-pressure water, supporting installation directly on machine frames.
System limits are set at 350 bar for ports A, B, and P, enabling the valve to control cylinders or motors working at high pressure, while port T is restricted to 210 bar to protect the tank return network. Spool hysteresis remains below 5 percent so commanded positions track closely after direction changes. Reliable motion is further ensured when the hydraulic fluid stays between −20 °C and 70 °C and within a viscosity window of 20 to 380 mm²/s. Cleanliness to ISO 4406 (c) 20/18/15 prevents silting that could impair proportional accuracy. A concealed N9 manual override lets technicians shift the spool mechanically during commissioning without protruding levers that could snag. FKM seals resist hot oil and common additives, completing a durable package for precise pressure and flow control.
Technical Specifications
Cleanliness Class
ISO 4406 (c) 20/18/15
Electrical Connector
K4 (2+PE, Design A)
Hydraulic Fluid Temperature Range
-20 to +70 °C
Hysteresis
<5%
Manual Override
Concealed (N9)
Max Flow
42 l/min
Max Operating Pressure (port T)
210 bar
Max Operating Pressure (ports A/b/p)
350 bar
Nominal Flow
15 l/min
Nominal Size
6
Porting Pattern
ISO 4401-03-02-0-05
Protection Class
IP65
Seal Material
FKM
Supply Voltage
24 VDC
Viscosity Range
20 to 380 mm2/s
1620 Old Apex Road
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