Multi functional Hydraulic Cartridge Relief Valve, AAK replaced the Brazilian manufacturer

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Multi functional Hydraulic Cartridge Relief Valve, AAK replaced the Brazilian ma...
Posting date : Jan 14, 2023
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VINSON ZHANG
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Place of Origin
China [CN]
Brand Name
AAK HYDRAULIC VALVES
Model Number
AAK443
HS-CODE
-
Package & Delivery Lead Time
Detailed Description

Kaniel is from a hydraulic equipment company in Brazil. At the beginning of this year, their customer wanted to customize an automatic small excavator and needed to purchase a hydraulic direct acting cartridge relief valve. Kaniel found a local hydraulic cartridge relief valve manufacturer for samples, and the equipment commissioning was smooth. After 1 month of use, the customer felt that the hydraulic system was lagging behind and needed to be optimized. The engineer asked Kaniel to communicate with the supplier, but there was no solution. Kaniel also contacted more than 10 hydraulic cartridge valve manufacturers, but it was fruitless. Kaniel was worried. 

 

Kaniel noticed AAK website on Google and left a message: Can you optimize the hydraulic cartridge direct acting relief valve to improve the lag of the hydraulic system? After the communication based on his system schematic diagram, combined with the original hydraulic cartridge relief valve sample anatomy, AAK engineers found the problem. By optimizing the structure and adjusting the functions of the hydraulic direct acting cartridge relief valve, and integrating the piston chamber, piston and one-way valve in the hydraulic system into the hydraulic direct acting cartridge relief valve, customers' complaints may be resolved. Kaniel paid the development cost with some doubts and waited for AAK's samples. After 50 days, AAK sent 8 samples of hydraulic direct acting cartridge relief valve.

 

Yesterday, Kaniel informed us by email that the customer has been using the excavator for 3 months, but the original system is no longer sluggish. The next step is to place the annual order. I was asked to make production planning in the workshop in advance. I felt that there would be a big order for the hydraulic direct acting cartridge relief valve. AAK engineer optimized the original hydraulic direct acting cartridge relief valve from 3 aspects. 

 

1. The front end of the main valve spool of the hydraulic cartridge relief valve is equipped with a one-way valve spool, a one-way valve spring and a spring seat. The one-way valve spool is provided with a damping hole. The main valve spool and the main valve spool guide cage are put into the lower valve cage, and the main valve spool spring and adjusting gasket are installed between them. The upper valve cage is connected with the lower valve cage, and the main valve spool guide cage is limited. 

 

2. The lower valve cage of the hydraulic cartridge relief valve is provided with a front pressure port and two side pressure ports. Under the action of the main valve spool spring, the pressure port at the front end of the main valve spool forms a poppet seal.

 

3. The upper valve cage of the hydraulic cartridge relief valve is equipped with a piston. The screw plug blocks the end of the upper valve cage. The piston forms a piston cavity with the upper valve cage, the main valve spool guide cage, the main valve spool and the one-way valve spool.

 

The optimized structure of the hydraulic direct acting cartridge relief valve realizes the control of secondary pressure at the same oil port, and also realizes the integration of piston chamber, piston and one-way valve. The system has a compact structure, simplified oil circuit and quick response.

 

AAK hydraulic direct acting cartridge relief valve is multifunctional and agile. You can also try one small order!


https://www.aakindustry.com/info-detail/relief-valves-aak443 


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