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Date/Time:  11/9/23 2:51 GMT

AAK Hydraulic Cartridge Valve Filtration Accuracy Is Up to 10 Microns

Nearly 90% of the hydraulic cartridge valve manufacturers in Ningbo can not
achieve the filtration accuracy as high as 10 Microns. But AAK is 1 of the less
than 10% hydraulic cartridge valve manufacturers with a filtering accuracy up
to 10 Microns.

Dylan came to AAK HYDRAULIC VALVE with a very special two position two-way
hydraulic cartridge valve. I knew he should have encountered a problem. For
this special hydraulic cartridge valve, the filtration accuracy of 10 Microns
was the minimum requirement. Dylan consulted the existing cooperated hydraulic
cartridge valve manufacturers, but none of them could meet the requirement.
Most hydraulic cartridge valve manufacturers said that the filtering accuracy
of 25 Microns is 100% no problem. Only 1 hydraulic cartridge valve manufacturer
gave feedback and was 70% sure that the filtering accuracy could reach 10

Dylan directly asked me, is it really difficult for these hydraulic cartridge
valve manufacturers in Ningbo to achieve the filtering accuracy of 10 microns?
How can so many hydraulic cartridge valve manufacturers have said that they can
only achieve the filtering accuracy of 25 Microns? I could understand his
helplessness and confusion.

This is because that the conventional hydraulic cartridge valve manufacturers
produce hydraulic valves according to domestic hydraulic standards in China.
Not only 1 or 2, but nearly 90% of hydraulic cartridge valve manufacturers, can
only able to get the filter element aperture reaches 25μm. We AAK HYDRAULIC
VALVE also used conventional filters at the beginning, and the filtration
accuracy was also based on domestic standards. 3 years ago, a German hydraulic
valve customer requested the accuracy requirement of 10 Microns, which was not
only a stimulus but also a challenge for us. After more than 2 months of
adjusting, we improved the process on the small sample, and adjusted the
equipment parameters until it was configured to a high-precision filter and
cooperated with AAK special hydraulic oil, so that the filtration accuracy of
particles in the hydraulic oil could be controlled to 10μm. 1 year later, some
hydraulic cartridge valve manufacturers learned that AAK had upgraded with
high-precision filters and followed suit. However, due to technical
constraints, many hydraulic cartridge valve manufacturers still failed to meet
the standard. Under the same working conditions, if the hydraulic cartridge
valves from these hydraulic cartridge valve manufacturers have a service life
of 2 years, the service life of AAK hydraulic cartridge valves can be extended
to 3-4 years.

Dylan was surprised that we had mass produced hydraulic cartridge valves with
filtration accuracy up to 10 Microns 3 years ago, but only 1 of his current
hydraulic cartridge valve manufacturers could do it, and with only 70% sure.
Dylan took out the drawings and asked us to send samples of this special
hydraulic cartridge valve within 20 days.

AAK HYDRAULIC VALVE, always has high requirements on precision. If you need to
find a high-precision hydraulic cartridge valve manufacturer, click AAK
HYDRAULIC VALVE website: AAK is your trusted hydraulic
cartridge valve manufacturer. You can also try a small order.
AAK Hydraulic Cartridge Valve Filtration Accuracy Is Up to 10 Microns
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SOURCE: Import-Export Bulletin Board (
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