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The REXROTH 4WRA6 is a direct-operated, proportional directional valve without electrical position feedback or integrated electronics (OBE). It controls the direction and volume of hydraulic fluid flow and is designed for subplate mounting per ISO 4401 standards. Its maximum operating pressure is 315 bar, with flow rates up to 75 L/min (depending on model).
What are the key features of the 4WRA6 valve?
Direct-operated design for precise flow control without external feedback
Proportional solenoid control with detachable coils and centering thread for easy maintenance
Spring-centered spool that returns to neutral when de-energized
Compatiblity with external electronics (e.g., Eurocard amplifiers) for signal control
Compact sizes: NG6 and NG10
How does the 4WRA6 valve work?
When an electrical signal is sent to the proportional solenoid, it generates a force that moves the spool proportionally. This adjusts the opening of flow paths between ports P (pressure), A/B (actuator lines), and T (tank), enabling continuous control of flow direction and volume. The spool returns to center via springs when de-energized.
Where is the 4WRA6 typically used?
This valve suits appliions requiring precise hydraulic control, such as:
Systems needing directional and flow control without integrated electronics
How do I select the right model?
Model codes indie specifiions (e.g., 4WRA6E07-2X/G24N9K4/V):
4WRA6: Series and size (NG6)
E07: Spool type and control configuration
G24N9K4: 24V DC supply, corrosion-resistant coating
Consult REXROTH datasheets or suppliers for exact requirements like flow rate, spool type, and electrical inputs.
What are critical installation notes?
Use the specified subplate (ISO 4401) to avoid leakage
Ensure the tank line is never unloaded; a pre-load valve (~2 bar) may be required
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer,Exporter
Total Annual:
1 million-10 millon
Employee Number:
>50
Ecer Certification：
Verified Supplier
Quanzhou Yisenneng Hydraulic Electromechanical Equipment Co., Ltd. has been established for many years and has now developed into an international trading company supplying various hydraulic machinery parts, oil pumps and valves. We are one of the few Chinese companies with multiple products and cha... Quanzhou Yisenneng Hydraulic Electromechanical Equipment Co., Ltd. has been established for many years and has now developed into an international trading company supplying various hydraulic machinery parts, oil pumps and valves. We are one of the few Chinese companies with multiple products and cha...
