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AAK Hydraulic Directional Control Cartridge Valve with 2-stage unloading, brings Arda 1 Benefit & 3 Selling Points

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Update time : 2023-03-02 11:35:44

Arda, from Turkey, has been purchasing hydraulic cartridge valves from China for 2 years smoothly. However, Arda has encountered difficulties in a hydraulic directional control cartridge valve. Last August, their company developed a mining hydraulic support, which requires hydraulic directional control cartridge valve. Arda purchased it from an old hydraulic cartridge valve manufacturer. The system impact was large during the equipment commissioning. After the engineer optimized the hydraulic system, the hydraulic directional control cartridge valve was required to have the secondary unloading function. The original manufacturer said that this hydraulic directional control cartridge valve is equivalent to a standard part of HydraForce, and the HydraForce original one has this function neither. Arda contacted other cartridge valve manufacturers, but no result.

 

Arda left a message on AAK website: Does AAK hydraulic directional control cartridge valve have the secondary unloading function? Similar problem was solved by AAK for a Russian customer last year, and we sent Arda the internal structure diagram of the similar valve. Arda saw the hope and asked AAK to make sample according to his drawing of the hydraulic directional control cartridge valve. After 40 days, AAK sent 18 samples of hydraulic directional control cartridge valves.

 

4 weeks after the samples of the hydraulic directional control cartridge valve were sent, Arda informed us that their engineer was satisfied with AAK hydraulic directional control cartridge valve, especially the secondary unloading function, had solved their system impact well and the hydraulic support was stable.

 

AAK hydraulic directional control cartridge valve has two-stage unloading function, which divides the high-pressure liquid energy from the original release into two releases, and the sealing is skilled. Such hydraulic directional control cartridge valve has 3 main selling points: small pressure impact, small leakage and good sealing. The biggest advantage is that its service life is twice that of the original cartridge valve manufacturer.

 

1. AAK hydraulic directional control cartridge valve is equipped with the first valve spool and the second valve spool. The first stage unloading is the second valve spool is opened, and the first valve spool is not opened, which can reduce the hydraulic impact. The second stage unloading is the first valve spool is fully opened, which can significantly expand the liquid flow channel, so that the oil pressure is reduced.

 

2. The valve body of the hydraulic directional control cartridge valve is provided with a liquid inlet and a liquid outlet. The liquid inlet is connected with the liquid storage chamber of the valve spool assembly through the first liquid guide hole. The liquid outlet is internally connected with the first valve spool of the valve spool assembly through the second liquid guide hole on the valve sleeve. The end of the valve sleeve is provided with a second damping hole, which connects the first valve spool with the connecting hole on the valve body.

 

3. The valve body and valve spool assembly are sealed by multiple groups, and the valve spool and valve seat are sealed by cone matching. When the hydraulic directional control cartridge valve is supplying liquid in the forward direction, the first valve spool is pushed away from the first valve seat to establish a forward liquid flow channel. When the liquid supply is stopped, the first valve spool is reset to block the liquid storage chamber and the second liquid guide hole, thus realizing the sealing function.

 

AAK hydraulic directional control cartridge valve has 3 main selling points and 1 major benefit. You can also try it!

 

AAK HYDRAULIC CARTRIDGE VALVES (518) 2023-03-02

 

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