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The original manufacturer can't handle the impact force of the Hydraulic Cartridge Directional Control Valve, and AAK solved it with 3 Skills

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Update time : 2023-02-18 22:18:38

Bemus is from a hydraulic equipment manufacturing company in Greece. As an old purchaser, he has been working smoothly, but had trouble with a hydraulic directional control cartridge valve. In the second half of last year, they wanted to test a hydraulic power unit for drilling equipment. The shaking was serious during the equipment commissioning, which was caused by the sudden impact of the hydraulic directional control cartridge valve under the high-pressure closed circuit. The original hydraulic directional control cartridge valve manufacturer explained that the hydraulic system pressure was too high. Their engineers asked Bemus to re-purchase the hydraulic directional control cartridge valves. After a week, there was no result. Bemus was worried.

 

Bemus found AAK in B2B and left a message on our website: How to make the hydraulic directional control cartridge valve without impact under the high-pressure closed circuit? After several rounds of communication, we learned the above problem that he encountered in purchasing of the hydraulic directional control cartridge valves. According to the video of equipment abnormality and the production drawing of hydraulic directional control cartridge valve sent by him, AAK engineer was 90% confident to eliminate the abnormality caused by the impact force. Bemus requested AAK to make samples. After 50 days, AAK sent 12 samples of hydraulic directional control cartridge valves.

 

6 weeks later, Bemus said that the trial run of their equipment was successful and the prototype had been delivered to the customer. AAK hydraulic directional control cartridge valve, based on the unloading valve spool, made 3 small changes to achieve pressure release. The optimized hydraulic directional control cartridge valve reduces the oil pressure in the high-pressure closed circuit and avoids sudden impact. Its stability can better control the equipment operation.

 

1. The unloading valve spool is arranged in the valve spool, and the control piston is connected with the push rod. The control piston can open the valve spool, and the inlet and outlet are connected, thus realizing reverse flow.

 

2. The unloading valve spool is connected with the spring seat, one end of the spring is fixedly connected with the top of the valve body, and the other point is connected with the spring seat. When there is no pressure oil in the control oil port, the pressure oil can only flow from the passage port to the outlet, and cannot reverse flow.

 

3. The bottom of the unloading valve spool is processed into a "convex" shape, which plays the purpose of unloading before the valve spool. When the pressure at the outlet is high, the control piston pushes the unloading valve spool first. When the pressure at the outlet decreases, the unloading valve spool connects the inlet and outlet.

 

AAK hydraulic directional control cartridge valve, no impact force, and stable, you can also try it!

 

AAK HYDRAULIC CARTRIDGE VALVES (506) 2023-02-27

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