AAK Hydraulic Directional Valves for Extreme Environments

Renzo is from Italy. As an old purchaser of the company, he has been doing very
well before. The hydraulic directional control valves purchased at the
beginning of last year distressed him. One of their high-pressure hydraulic
supports had leakage due to corrosion of the hydraulic directional control
valves 6 months after sales, resulting in instability of the support. The
original hydraulic directional control valve manufacturer thinks that the
corrosion is caused by the extreme working environment and cannot be completely
improved. Renzo realized that trouble was coming and began to contact the new
hydraulic directional control valve manufacturers. However, after 2 weeks, no
hydraulic valve manufacturer guaranteed that it would not corrode for 1 year in
an environment with high sulfur and wax oil content and low temperature, Renzo
was worried.

Renzo found AAK hydraulic valves in Google and left us a message: can you
produce hydraulic pressure control valves that can guarantee non corrosion in
extreme environments for more than 1 year? I told him that it depends on the
working environment and the drawing requirements of the hydraulic directional
control valve. According to the information provided by Renzo, after 1 day of
discussion, AAK technical team is 90% confident to be successful. Maybe Renzo
had no choice, and paid the development fee the next day.

Material selection is the key to solve corrosion. After 3 times of material
selection and 6 times of testing, AAK technical team completed and sent 24
samples of hydraulic directional control valves 60 days later. Last week, Renzo
informed by email that it had been 10 months since their hydraulic support was
installed with AAK hydraulic directional control valve, and there were no
complaints of corrosion and leakage. I told him to be relieved that there would
be no complaints within 1 year.

Why did the AAK hydraulic directional control valve is corrosion-resistant for
more than 1 year, while the other hydraulic valve manufacturers failed in 6
months?

Monel 400 alloy steel is selected for this hydraulic directional control valve.
The material is based on nickel metal, and copper, iron, manganese and other
elements are added. Its corrosion resistance is more than 3 times that of
conventional steel, especially in the geological exploitation of high sulfur
and high wax oil reservoirs. At the same time, its mechanical properties have
been improved by more than 30%, and it is friction resistant in low temperature
environment. Besides, Monel 400 alloy steel has another feature, which is not
easy to produce stress corrosion cracks, and is mostly used in aerospace,
marine and oil and gas industries. Although the material cost is 2-3 times
higher, AAK needs to choose the best option. Even if it's 2-3 times more
expensive, still choose the best. Because AAK can't make things that are not
good enough, let alone supply them to consumers.

AAK hydraulic directional control valves, material selection with heart, you
can also have a small try!

https://www.aakindustry.com/info-detai , l/hydraulic-directional-control-valves-
aak342

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