AAK Hydraulic Cartridge Pressure Control Valve Exceeds SUN Valve

Caspar is from a hydraulic transmission equipment company in Canada. He has
been in purchasing for 5 years, and it is very smooth. In the first half of
this year, a batch of hydraulic transmission units they sold was complained by
customers that they often had cavitation. The first judgment should be that the
hydraulic cartridge pressure control valve in the hydraulic system is abnormal,
but the engineer thought that the valve was from the SUN hydraulics and should
not have problem. He subconsciously thought that the hydraulic pump that Caspar
purchased from China had a leak. After the test, it was found that the pressure
at the outlet of the pump was stable. After checking one by one, only hydraulic
cartridge pressure control valves from SUN were not checked, but the valve
parameters were normal. The engineer was puzzled. After communicating with each
hydraulic component manufacturer of the equipment, Caspar came to the
conclusion that this SUN hydraulic cartridge pressure control valve may not be
suitable for this hydraulic transmission equipment. However, none of the
manufacturers of hydraulic cartridge pressure control valves can solve the
hidden danger of cavitation, so they can only turn to SUN for help. But SUN was
not interested in customizing small quantities. Caspar was helpless and
anxious.

Caspar found AAK while browsing Google. According to our background trace, he
stayed on AAK website for more than 30 minutes, and left a message: Is the
cavitation of the equipment caused by the hydraulic cartridge pressure control
valve in the system? This needs to be specifically analyzed, according to SUN
standard part number, hydraulic schematic diagram, equipment technical
parameters, and used scenarios, AAK engineer believed that the SUN hydraulic
cartridge pressure control valve of this model does not meet the special
requirements of the equipment. AAK can sample the hydraulic cartridge pressure
control valve, and it is 90% sure to solve the cavitation complaint. After 45
days, 10 samples of hydraulic cartridge pressure control valves were sent out.

Last week, Caspar emailed that there was no cavitation after AAK hydraulic
cartridge pressure control valve was used. The customer was very satisfied, but
still had to continue to observe for several months. I told Caspar that AAK
hydraulic cartridge pressure control valve had eliminated the cavitation hazard
of the equipment in terms of function. As long as AAK hydraulic cartridge
pressure control valve is within the service life, cavitation will not occur.

How did this hydraulic cartridge pressure control valve replace SUN standard
parts in function? In AAK hydraulic cartridge pressure control valve, there are
two valve spools, separated by a spring, which is fixed in between 2 valve
cages. The set value of overflow pressure can be set by adjusting the valve
cage. At the same time, there is a damper between the two valve spools, which
can provide positive damping of the hydraulic system. The valve can limit any
input pressure in the inlet pipeline, prevent impact or pressure fluctuation
when the actuator changes direction or stops suddenly, and also allow oil to
enter the low pressure pipeline to supplement the oil drainage or any
discharged flow. Its two-way cross type function can deliver the discharged oil
to other pipelines to ensure the actuator is refilled with oil and eliminate
cavitation.

AAK customized hydraulic cartridge pressure control valve has more functions
than SUN, and you can also have a small try!

https://www.aakindustry.com/info-detai , l/cartridge-pressure-control-valves-
aak398

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