AAK hydraulic directional control valve succeeded as soon as it was tested

HIGINSON company plans to develop a new plunger hydraulic cylinder, which needs
to purchase the supporting hydraulic directional control valves. Helen, who had
just joined the company, stumbled when purchasing the hydraulic directional
control valves. Helen has no hydraulic valve supplier and can only purchase
from the original hydraulic valve manufacturer of the company. Half a month
later, the engineer and technician of the company installed the hydraulic
directional control valves purchased by Helen for commissioning, and the
plunger hydraulic cylinder dropped intermittently with vibration and noise. The
technician pointed out that the hydraulic directional control valves needed to
be replaced.

Helen contacted the original manufacturer of hydraulic directional control
valve. Per the manufacturer, the delivered hydraulic directional control valves
met the requirements of Helen's parameters, and the accuracy also fully met the
standard. As a novice, Helen was helpless, and the technician did not
specifically say why to replace the hydraulic direction control valves. She
tried to contact the new hydraulic directional control valve manufacturer to
solve the problem.

Helen left a message on AAK website: why is the plunger hydraulic cylinder
equipped with hydraulic directional control valve noisy? At this moment, we
can't tell the reason. After communicating with Helen, I learned the process of
purchasing this hydraulic directional control valve and the judgment of
technician in their company. AAK engineers are not 100% sure that where the
problem is according to the hydraulic directional control valve drawings sent
by Helen, the shipment sample of the original manufacturer and the video of
their technician's machine test. We are thinking if Helen, as a novice, has
mistaken the type of hydraulic directional control valve? The hydraulic
directional control valves can be divided into internal leakage type and
external leakage type. Combined with the working conditions, this plunger
hydraulic cylinder just reverses the oil outlet chamber, and the back pressure
is high. If the internal leakage hydraulic directional control valve is used,
there will be abnormal phenomena such as vibration or noise.

We told Helen our thinking. She really did not note to the original
manufacturer that the hydraulic directional control valve is internal leakage
or external leakage. I told her that AAK has ready-made samples of the external
leakage hydraulic directional control valve. It is recommended to test the
machine with AAK hydraulic directional control valve to see if there is still
vibration or abnormal noise. A week later, Helen sent an email saying that AAK
hydraulic directional control valve was installed and there was no abnormality
in the test run.

Helen said privately that she contacted many manufacturers of hydraulic
directional control valves. AAK was the first hydraulic valve manufacturer
willing to help solve the problem in time. With the help of AAK, she passed the
probation period smoothly. AAK is her first trusted Chinese hydraulic valve
manufacturer.

AAK hydraulic directional control valves, do something you trust, welcome to
have a small try!

https://www.aakindustry.com/info-detai , l/hydraulic-directional-control-valves-
187

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