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The original manufacturer can't avoid the pressure fluctuation of the Hydraulic Pilot-Operated Relief Cartridge Valve, and AAK solved it with 3 skills

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Update time : 2023-03-14 11:03:57

Beacan is from Egypt and has been purchased from hydraulic cartridge valve manufacturers in China for 1 year. In December of last year, a batch of their hydraulic pilot-operated cartridge relief valves was complained of large pressure fluctuations by customer. The original manufacturer of the hydraulic cartridge relief valve said that it was necessary to optimize the internal structure, but it was uncertain. Beacan contacted other hydraulic cartridge valve manufacturers, but there was no solution. Beacan was worried.

 

Beacan found AAK hydraulic cartridge valve website on Google and noticed that AAK has solved the problem of hydraulic cartridge relief valve for customers. He left us a message: Can you solve the problem of large pressure fluctuation of hydraulic cartridge pilot-operated relief valve? After communication, I learned that he had trouble purchasing the hydraulic cartridge relief valve. He dissected the original sample and sent me the picture of the internal structure of the original hydraulic cartridge relief valve. I told him that we had solved problems of similar cases before and provided him the pictures of hydraulic cartridge relief valves for his reference. The pilot valve spool of his hydraulic cartridge relief valve is a traditional T structure, and the inclined angle with a convex ball is used as a whole, which will lead to abnormal linear changes in the internal pressure of the hydraulic cartridge relief valve, resulting in pressure instability or large fluctuations. Beacan should have accepted our judgment and placed an order of 480 hydraulic cartridge relief valves directly. He required that the samples should be sent within 40 days.

 

Last week, Beacan informed us that their customer was satisfied with AAK hydraulic cartridge pilot-operated relief valve and mass production can be started. AAK has made 3 optimizations in the pilot valve spool and damping valve spool to ensure that the valve spool steel ball seals the oil inlet valve spool, and the pressure fluctuation is small and stable.

 

1. The pilot valve spool of AAK hydraulic cartridge relief valve adopts cylindrical groove instead of the original cartridge valve manufacturer's T structure. The valve spool bevel angle has cylindrical groove, and the groove is embedded with the valve spool steel ball. The advantage of this is that the valve spool steel ball can fully fit the valve spool oil inlet, with large contact surface, and can seal the oil inlet from any direction to avoid pressure fluctuation.

 

2. One end of the pressure regulating spring is connected with the pilot valve spool, and the other end is connected with a damping valve spool. This advantage is that when it is opened, the oil can quickly fill the cavity between the pilot valve seat and the main valve spool. The opening speed of the hydraulic cartridge pilot-operated relief valve can be increased by more than 30%.

 

3. There are fixed valve sleeves on both sides of the pressure regulating valve sleeve. The fixed valve sleeve and the pressure regulating valve sleeve are connected by sealing elements, which can ensure the tightness of the pressure regulating valve sleeve and the fixed valve sleeve without leakage and ensure the stability of the pressure.

 

AAK hydraulic cartridge pilot-operated relief valve, has small pressure fluctuation and is stable. You can also try it!

 

AAK HYDAULIC CARTRIDGE VALVES (530) 2023-03-13

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