Hydraulic Proportional Directional Valve
For HD-4WRA(E) directional valve, control of fluid direction and flow is done by electromagnet, which is controlled by external amplifier (HD-4WRA) or internal amplifier (HD-4WRAE).
With flow channel of the valve made from casting, the valve shows powerful flow capability. Proportional amplifier is inserted inner the valve, ensuring that it is aesthetic and easily-operated. Only a seven-pin plug is needed to make the valve work. Dimension of the subplate is the same as that of a solenoid valve. HD-4WRA(E) proportional directional valve is mainly applied in equipment building, mining, metallurgy and aerospace industries.
Main Features
1. Spool is aligned by spring
2. Internal amplifier (HD-4WRAE) is optional; A1 or F1 input
3. Control of the valve is done by the electromagnet connected with screw. The coil can be removed individually
| Dimension | 6, 10 | |
| Max pressure (PMAX) | bar | 31.5 |
| Max flow (qvmax) | L/min | 75 |
For more details, please download the PDF file
How to Choose the Right Specification
You can determine the model you want according to the table below. Please feel free to contact us if you have any questions.
After Sales Service
1. Our valve product comes with 1 year warranty. If there are any quality issues during the warranty period, we will replace or repair the accessories for free
2. We commit that your email will be replied once we have received it, and we will come up with a solution for your problems as soon as possible
