AAK Hydraulic Sequence Valve has replaced the one from American factory

Yesterday, I received a repeat order for a hydraulic sequence valve from Gary.
The first order of this hydraulic sequence valve was placed 3 years ago.
Before, I wondered why this hydraulic sequence valve had not been repurchased,
thinking that it had been switched back to the United States for production. I
really didn't expect to receive the repeat order after 3 years, and the
quantity was more than 3 times that before.

3 years ago, Gary’s company had a newly designed hydraulic pump to be produced
in Vietnam branch, and the pump needed hydraulic sequence valve. If purchasing
the hydraulic sequence valve in the United States and delivering it to Vietnam,
it was expected to take 3 months or more. His boss wanted to try purchasing in
China, hoping to save half the time. According to the boss's instructions, Gary
spent 3 days looking for hydraulic valve factories, selected 5 hydraulic valve
manufacturers from more than 10 as their hydraulic sequence valve suppliers,
and asked them to send reference samples of hydraulic sequence valves to
Vietnam for testing. Gary happily reported the purchasing status to his boss,
who was satisfied.

After Gary received these hydraulic sequence valve samples, he arranged the
technical department to match the working conditions for testing, but the
results were poor. The matching clearance between the valve body and the valve
spool of some hydraulic sequence valves was small. After an additional 20%
pressurization, the valve hole was deformed and the valve spool would be stuck.
All 5 hydraulic valve manufacturers said that after additional pressurization,
they were not able to ensure the quality of hydraulic sequence valve. Time has
been wasted for more than 2 weeks. At this time, if returning back to the
United States to purchase hydraulic sequence valves, he would be scolded by his
boss. Gary began to worry.

When Gary browsed AAK website (www.aakindustry. com), he felt that AAK
hydraulic valve was some different from the other hydraulic valve
manufacturers. He emailed to inquire about the hydraulic sequence valve and
frankly told us the problems he had encountered with Chinese hydraulic valve
manufacturers. After several rounds of e-mail communication and AAK technical
team's analysis of his drawings, we truthfully told him that AAK's existing
hydraulic sequence valve samples could not meet his pressurization test. It
takes 2 weeks to proofing according to the drawing. If the sample of the
hydraulic sequence valve is approved and it takes 25-30 days to produce his
order for the hydraulic sequence valve, Gary calculates the time. If the sample
of AAK's hydraulic sequence valve is successful, the time saving meets the
requirements of the boss. If it is not successful, it will waste another 2
weeks. It seems that he has no choice. Somehow, Gary feels that AAK can give
him hope and hopes that we can send samples as soon as possible.

4 days after the samples of the hydraulic sequence valve were sent, Gary e-
mailed to us that the pressurization test passed. The problems happened on the
samples of the previous 5 hydraulic valve manufacturers are now gone. At the
same time, all the parameters of AAK hydraulic sequence valve can be compared
with those produced in the United States. Gary asked us to hurry up to prepare
for production and deliver on schedule.

In order to avoid pressure deformation, AAK adjusted the production process of
the valve hole and applied the technical method of "avoiding deformation" to
the production process of the valve hole. An experienced AAK technician who had
operated for 7 years failed for 3 times before mastering this operation key
point. After Gary knew this, he said it slowly that only at this time, he
really knew the difference of AAK hydraulic valve and didn't want to waste time
looking for homogeneous hydraulic valve manufacturers.

AAK hydraulic sequence valve is benchmarked with the original American
hydraulic valve supplier, and has become the only hydraulic valve supplier of a
Russian customer. You may not be able to find a second one like AAK in Ningbo.
You can also have a small try.

https://www.aakindustry.com/info-detail/hy , draulic-sequence-valve-aak118

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