Esmaeel is from Iran. He is an interesting friend. If he doesn't have an order, he won't come to me, unless when he was in trouble. In the second half of last year, Esmaeel asked me to customize a hydraulic flow control cartridge valve as soon as possible. After communication, we learned that the test of their hydraulic pile driver was not smooth and the response was very slow. Their engineer judged that the hydraulic flow control cartridge valve was not awesome, which was customized by a hydraulic cartridge valve manufacturer in India. The manufacturer said that the system flow was too large, resulting in the slow response of the hydraulic flow control cartridge valve. The engineer was not satisfied with the original manufacturer and asked to replace the supplier. I asked him why he didn't contact AAK to customize this hydraulic flow control cartridge valve at the beginning. Esmaeel explained that this Indian cartridge valve manufacturer was designated by his customer, because this factory has ready-made procedures, which greatly shortened the development time.
According to his hydraulic system schematic diagram and the original hydraulic flow control cartridge valve drawing, after internal discussion, I told him that the functions of the hydraulic flow control cartridge valve from this Indian cartridge valve manufacturer are not suitable for their equipment and it must be innovated. If AAK plan works out smoothly, we can finish samples within 45 days. 2 weeks after sending the sample of hydraulic flow control cartridge valve, Esmaeel told me that the pile driver test was successful, and let me wait for his good news.
Today, I received the PO for 160 hydraulic flow control cartridge valves, and can't wait to share the innovative functions of our hydraulic flow control cartridge valves with you. AAK hydraulic flow control cartridge valve can realize large flow connection and fast response, here is what we do.
1. The valve spool and sleeve of the hydraulic flow control cartridge valve are of three-section type. The outer wall of each section of the valve spool is processed with convex steps. The cross-sectional area of the inner cavity of the three-section valve sleeve increases in turn. The axial through-hole of the valve sleeve penetrates from the lower end to the upper end. Each section of valve sleeve is provided with a plurality of radial oil ports, which are connected with the oil passage cavity.
2. The valve spool is sleeved in the axial through-hole of the valve sleeve, and the valve spool guide is arranged in the guide cavity. The valve sleeve is located in the control cover plate, which has 3 oil passages. One end of the return spring is connected with the control cover plate, the other end is connected with the second spool, and the oil passage cavity is connected with the return spring cavity.
3. There are 3 seals in the guide sleeve of the valve spool, and there is no leakage in the cavity.
The optimized hydraulic flow control cartridge valve has 2 function positions. The flow capacity of the first function position is less than the flow capacity of the second function position. The two-way pressure control is adopted, and the response speed is fast. The hydraulic flow control cartridge valve can be controlled with less pressure oil. The flow difference in the system does not affect the response of the hydraulic flow control cartridge valve.
AAK hydraulic flow control cartridge valve, even if the flow is large, the response speed is still fast, you can also try it!
AAK HYDRAULIC CARTRIDGE VALVES (509) 2023-02-21