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For Hydraulic Cartridge Valves that needs to be corrosion-resistant for more than 1 year, Manator only trusts AAK

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Update time : 2023-04-18 12:11:28

Manator is from Indonesia and has been engaged in the procurement of hydraulic components for 2 years. At the beginning of last year, the hydraulic power unit they sold for deep-sea oil drilling was complained of as abnormal by customers 6 months later. The root cause is severe corrosion on the surface of the hydraulic cartridge valve in the hydraulic system, leading to dysfunction of the hydraulic cartridge valve. Manator was very confused because the valves sold to other markets from the same batch production has no complaint for over 1 year. The original hydraulic cartridge valve manufacturer stated that the corrosion in deep sea is severe, and the only solution is to replace the corrosive valves with new ones, and the service life can be only guaranteed for 6 months or less. The 6-month frequency of after-sales service not only results in high costs but also dissatisfaction from customers. The boss requested him to purchase hydraulic cartridge valves with a service life of more than 12 months to replace those corroded hydraulic cartridge valves. After sourcing for 1 week, but still without any results, the customer pushed for after-sales solutions several times, Manator was in a hurry.

 

Manator left a message on AAK hydraulic cartridge valve website: Is the service life of AAK hydraulic cartridge valves guaranteed to be more than 1 year in deep-sea environments? I did not directly answer his question, but only sent him a case of a customized hydraulic flow control valve for a Brazilian customer: "AAK hydraulic flow control valves were still normal after being used for 15 months near the sea, while that of the peers corroded after 10 months.”

 

Manator requested me to sample the hydraulic cartridge valves based on his drawings, and requested me to finish it as soon as possible to replace the hydraulic cartridge valves complained by customers. 45 days later, AAK sent out 40 hydraulic cartridge valves. After Manator received samples of AAK hydraulic cartridge valves, he just told us: AAK hydraulic cartridge valves can be used in their power unit, and their functions are consistent. Then, he didn't reply to my follow-up email.

 

Last week, Manator sent an email with a repeat order for 200 hydraulic cartridge valves, informing us that his customer is very satisfied with this after-sales service. After replacing with AAK hydraulic cartridge valves, a year has passed and the hydraulic cartridge valves have no corrosion or abnormal function. They only trust AAK for hydraulic cartridge valves used in marine conditions in the future. The key of this hydraulic cartridge valve is its corrosion resistance, which is not difficult for AAK.

 

1. The selection of materials for hydraulic cartridge valves, with the valve body made of 3Cr3Mo3W2V hot working die steel, has a corrosion resistance of over 30% better than other steels. Although the material cost is over 30%, it is still the preferred material for AAK.

 

2. The surface treatment of the material adopts a zinc nickel alloy coating, and the coating thickness is controlled between 10-15μm. Compared to conventional zinc coatings, the corrosion resistance is more than 3 times higher.

 

3. AAK has a SH-90 salt spray testing machine for anti-corrosion testing of materials, which tests the valve body according to the GB/T2423.17 testing standard. Ensure that the anti-corrosion of any surface of the valve body meets the standard, and also ensure that there is no red rust after a neutral salt spray test for more than 1,500 hours.

 

AAK hydraulic cartridge valve, is safe to use in the ocean, you can also give it a try!

 

AAK HYDRAULIC CARTRIDGE VALVES (565) 2023-04-18

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