AAK hydraulic relief valve was 17% expensive, but no cavitation

This morning, Mason sent an email asking about the production time of 2,000
hydraulic relief valves, which surprised me. Usually, he just places small
trial orders of hydraulic relief valves. He is going to place a large order
this time. Mason is a purchaser of BRACEBRIDGE company in Canada. We have known
each other for 2 years. After communication, it was learned that a batch of
their hydraulic pipe laying rigs had been complained about the frequent leakage
in the hydraulic pump since the previous year. The after-sales engineer found
that the cavitation was caused by the oil passing through the hydraulic relief
valves for a long time, resulting in the pressure loss of the hydraulic
cylinder. Mason contacted the original manufacturer of the hydraulic pressure
relief valves to find a solution. The manufacturer advised that such a working
environment can only replace the hydraulic relief valves with cavitation. The
trouble is that the same problem happened again half a year later. The customer
was very unhappy with this frequent after-sales, and the boss asked Mason to
replace the manufacturer of hydraulic relief valves.

Mason told his boss that there is no reliable manufacturer of hydraulic relief
valves to replace the present one. For the sake of safety, AAK hydraulic relief
valves should be selected. Because there was equipment installed with AAK
hydraulic relief valves when testing samples at the beginning. Now 1 year
later, there is still no cavitation on AAK hydraulic relief valves. But the
price of AAK hydraulic relief valve was 17% higher than that of other
manufacturers and was not selected. The boss rejected again and asked Mason to
find a new manufacturer of hydraulic relief valves. During the continuous
screening process, Mason selected 3 hydraulic relief valve manufacturers to
test samples. Basically, after half an year, these hydraulic relief valve
samples successively had similar faults.

Mason was at a loss what to do. He once again suggested to his boss to purchase
AAK hydraulic relief valves. After comparing so many hydraulic relief valve
manufacturers, none of their samples can be used for more than 1 year under
this working condition. In this way, the hydraulic relief valves need to be
replaced every 6 months for after-sales. Not only the after-sales cost is high,
but the customer is also not satisfied. The boss seems lost faith completely in
other hydraulic relief valve manufacturers and agreed with Mason to regard AAK
as their preferred supplier of hydraulic relief valves.

It took Mason 2 years to persuade his boss to choose AAK hydraulic relief
valves with 17% higher price, because he knows that the durability of AAK
hydraulic relief valves is at least twice that of other manufacturers. Under
complex working conditions, how does AAK ensure that the hydraulic relief
valves have no cavitation and its durability is more than twice that of other
manufacturers?

1. AAK hydraulic relief valve sleeve orifice processing, the opening adopts
conical hole, not cylindrical hole of other manufacturers. Most hydraulic
relief valve manufacturers do not have this ability to process conical hole.

2. The chamfering, deburring and polishing process is added at the orifice to
further optimize the control edge, so as to reduce the cavitation caused by the
flowing oil, and at least eliminate the cavitation within 2 years. Most
hydraulic relief valve manufacturers did not expect that AAK has such a unique
skill.

3. Devils are in the details. Most hydraulic relief valve manufacturers will
ignore small details. Even if some factories think of them, they can't control
the technology.

AAK hydraulic relief valves, pay attention to every small detail, you can also
have a small try!

https://www.aakindustry.com/info-detai , l/hydraulic-relief-valves-aak222

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