The 4WRAE-2X series is a proportional directional valve with a direct-acting proportional solenoid. It is used to control the flow rate and direction of liquid flow. The product quality is reliable and the performance is stable. Huade® high-quality electromagnetic proportional directional valve series 4WRAE-2X has reliable quality and stable performance. It can replace the same series offered by Rexroth.
Proportional Directional Valve 4WRAE-2X
TECHNICAL REPLACEMENT NOTICE
This Huade® directional control valve serves as a 100% direct drop-in replacement for Bosch Rexroth PROPORTIONAL-DIRECTIONAL-VALVE-4WRAE-2X equivalents. Dimensions, mounting interfaces, and technical parameters are identical. Designed for cost reduction in industrial and mobile hydraulic systems.
• Product features: For subplate mounting
• Specifications:4WRAE-2X series,
• Applications: control the flow ,direction of hydraulic fluid
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100% Genuine Huade
Direct factory authorized supply
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ISO 4401 Mounting
ISO 4401 / Rexroth interchangeable
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Technical Data Sheet
- Product Overview
- Features & Applications
- Technical Parameters
Product Overview
Key Features
- For subplate mounting
- Direct actuated proportional valve for controlling the direction and volume of a flow
- Spring centred control spool
- Integrated control electronics, interface A1 or F1 for type 4WRAE
- Actuation by means of proportional solenoids with central thread and removable coil
- Control electronics for type 4WRA
Industrial Applications
- The 4/2- and 4/3-way proportional directional valves 4WRAE-2X series are designed as direct operated components for subplate mounting. The 4WRA 6 W30-2X proportional directional valve is used to control the flow and direction of hydraulic fluid.
- The 4WRAE 10 W1-60-2X proportional valves basically consist of: Housing (1) with mounting surface Control spool (2) with compression springs (3 ),Solenoids (4) with central thread,Optional integrated valve electronics (5).
- HD-4WRA(E)...2X/...
- With the solenoids (4) de-energised, the control spool (2) is held in the central position by compression springs (3).
- Direct actuation of the control spool (2) by energising a proportional solenoid.E.g. controlling of solenoid "b" (4). The control spool (2) is moved to the left in proportion to the electrical input signal.Connection form P to A and B to T via orifice-like cross sections with progressive flow characteristics. De-energisation of the solenoid (4).The control spool(2) is returned to the central position by compression spring (3).
- Structure of Proportional Directional Valve 4WRA -2X
- HD-4WRA(E)...A-2X
- In principle, the function of this valve version corresponds to that of the valve with 3 spool positions. However, the valves with 2 spool positions are only fitted with solenoid "a". Instead of the 2nd proportional solenoid a plug (5) is fitted for NS 6 or for NS 10 a cover(5).
- Note for type 4WRA 6..-2X/...
- Draining of the tank line is to be avoided. With the appropriate installation conditions, a back pressure valve is to be installed (back pressure approx.0.2MPa).
Technical Parameters
Mechanical ratings and operating limits for the Proportional Directional Valve 4WRAE-2X:
| Parameter / Dimension Name | Value / Rating Specification |
|---|---|
| Hydraulic | Hydraulic |
| Valve type - HD-WRA | HD-WRAE |
| Operating pressure (MPa) - Port A,P,B - 31.5 | 31.5 |
| Operating pressure (MPa) - Ports T - 21 | 21 |
| Nominal flow qv nom at △ P=1MPa - NS6 (L/min) - 7、15 and 26 | 7、15 and 26 |
| Nominal flow qv nom at △ P=1MPa - NS10(L/min) - 30 and 60 | 30 and 60 |
| Degree of contamination (μ m) - ≤20 | ≤20 |
| Hysteresis(%) - ≤5 | ≤5 |
| Reversal error (%) - ≤1 | ≤1 |
| Response sensitivity(%) - ≤0.5 | ≤0.5 |
| Pressure fluid - Mineral oil or Phosphate ester | Mineral oil or Phosphate ester |
| Viscosity range - 20~380 | 20~380 |
| Ambient temperature range (℃) - -20 to +80 | -20 to +50 |
| Weight (kg) - NS6 - 2 | 2.2 |
| Weight (kg) - NS10 - 6.6 | 6.8 |
