Bosch Rexroth | 4WRA6W15-2XG24N9K4V
4WRA6W15-2X/G24N9K4/V
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The 4WRA6W15-2X/G24N9K4/V proportional directional valve is produced by Bosch Rexroth within the 4WRA Proportional Directional Valves series. It modulates flow and direction in hydraulic automation circuits that require accurate actuation. The valve is built to the nominal size 6 format so it fits manifolds designed for this cavity. A spool marked with symbol W establishes the flow paths expected in servo-controlled cylinders. Under a differential pressure of 5 bar per edge, the valve passes a nominal flow of 15 l/min, which defines its steady working capacity. Channels a, b, and p can be pressurized to 350 bar, enabling use with high-pressure power packs. The solenoid receives a 24 V DC supply through a 2-pole plus protective-earth connector coded K4, simplifying cabinet wiring. A concealed manual override permits local actuation during commissioning without exposing moving parts. For installation, the product uses subplate mounting, and the porting pattern follows ISO 4401-03-02-0-05 to maintain interchangeability with standard base plates.
The design supports a maximum flow of 42 l/min so intermittent peaks can be handled without cavitation or excessive pressure drop. Pressure at the tank port may reach 210 bar, matching the back-pressure limits of compact return circuits. An ingress protection rating of IP65 shields the coil and terminals from dust and water jets encountered on machinery. FKM seals are fitted to resist synthetic fluids and elevated oil temperatures. The valve body may reach a surface temperature of 150 °C during sustained duty, requiring nearby components to tolerate that heat. Overall weight is 2.0 kg, allowing the subplate and plumbing to support the assembly without reinforcement. A mean time to dangerous failure of 150 years reflects the statistical reliability expected in safety-critical hydraulic systems.
Technical Specifications
Manual Override
Concealed
Maximum Flow
42 l/min
Maximum Surface Temperature
150 °C
Mounting Type
Subplate Mounting
Mttfd
150 Years
Nominal Flow (Δp=5 Bar/edge)
15 l/min
Nominal Size
6
Operating Pressure (a,b,p)
350 bar
Porting Pattern
ISO 4401-03-02-0-05
Power Connector
2‑pole + PE (K4)
Protection Class
IP65
Seal Material
FKM
Spool Symbol
W
Supply Voltage
24 V DC
Tank Port Max Pressure
210 bar
Weight
2.0 kg
1620 Old Apex Road
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