AAK pressure control valve, Faster Proofing and Higher cost performance

Tony is a purchasing manager of Italian Casappa company, mainly responsible for
the purchasing of hydraulic pump components. Last October, Casappa developed a
new hydraulic pump and planned to promote this new product at this year's
exhibition. During the debugging, the output pressure of the hydraulic pump can
not be established several times, which is a little troublesome, because the
owner has sent all the invitations to the exhibition to the customers and
grandly introduced the functions of this hydraulic pump. The R & D personnel
checked and tested each component one by one. It is basically certain that it
is caused by the instability of the pilot operated pressure control valve.

The technical team dissected the pilot pressure control valve and found local
friction marks on one side of the hole wall of the valve body. The diagnosis
conclusion is that the main valve spool is stuck, which should be caused by the
concentricity difference between the hole of the main valve body and the hole
of the pilot pressure control valve body. The owner asked Tony to re purchase
the pilot pressure control valve that meets the technical requirements, which
must be solved within 25 days, otherwise he will leave because the exhibition
is too important. Tony contacted the original hydraulic valve manufacturer and
got a reply that due to equipment, he could not produce high-precision pilot
pressure control valves with the exactly same concentricity. At the same time,
he contacted a number of hydraulic valve suppliers and they basically replied
that they could not do such a high precision pilot operated pressure control
valve, which made Tony almost collapse.

When Tony searched the hydraulic valve suppliers in Google, he found AAK
HYDRAULIC VALVE. The details page of the hydraulic valve on AAK website made
Tony feel that maybe AAK could have a try. He emailed us firstly to ask whether
the concentricity of the pilot operated pressure control valve could be
consistent. We need the detailed drawings, working conditions and parameters of
his whole hydraulic pump to judge. After receiving all information from him,
AAK technical team pondered the whole afternoon, with more than 95% confidence,
and it would take 15-20 days to complete it.

Tony said he was happy and uneasy. He was happy that some hydraulic valve
manufacturer could try this high-precision pilot operated pressure control
valve and has a high probability of success. He was uneasy that if AAK
HYDRAULIC VALVE did not succeed in proofing, the time would be wasted. We
understand his concern. We told him that the reason why we are not sure for
100% is that there is a data that can't be determined. If AAK HYDRAULIC VALVE
failed in sampling, then he should not waste time in Ningbo area. We suggest
that he also find a hydraulic valve supplier in Europe, so as to sample with
AAK at the same time.

2 weeks later, we sent a sample of the pilot operated pressure control valve. 4
days later, Tony sent an email excitedly informing us that the pressure of the
hydraulic pump was completely normal after using the pilot operated pressure
control valve with the same concentricity from AAK. The owner was very happy
that the exhibition would not be affected. 5 days later, Tony sent another
email to inform us that the pilot operated pressure control valve provided by a
well-known hydraulic valve company in Germany had also been successfully
tested. AAK took 15 days to proofing, and the German hydraulic valve
manufacturer took 25 days. At the same time, the price of AAK hydraulic valve
is 10-15% cheaper than that of German hydraulic valve. He was surprised why AAK
took less time to proofing and the price was cheap, but the quality of the
hydraulic valve was benchmarked with the well-known brand in Germany.

AAK has made the most typical improvement on the equipment. On the high-
precision machine tool imported from Switzerland, it adopts high-speed
interpolation technology to realize continuous feeding with small program
segments, so as to make the control unit of the machine tool more refined. At
the same time, the high-resolution position detection device is used to improve
the position detection accuracy, and the position servo system adopts
feedforward control and nonlinear control methods, plus with the most
experienced engineers to test the accuracy of each process, so as to ensure the
consistency of the concentricity of the pilot operated pressure control valve.
Tony admires our innovation in equipment, especially our quality benchmarking
the German brand. After some time, he privately informed me that the exhibition
was a great success, and the owner was in a great mood. Tony was not only
praised by the owner, but also upgraded to the general manager of purchasing
dept. AAK pilot operated pressure control valve has become the best choice for
Casappa.

The customer purchased from AAK said that AAK pilot operated pressure control
valve is benchmarked with the German brand. AAK hydraulic valve has no leakage,
3 of 500 Global Top Enterprises in Use. You can also have a small try.

https://www.aakindustry.com/info-detail/pi , lot-operated-pressure-control-valve-
aak113

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