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The Hydraulic Valve Leaked Oil, Adrian Was Particularly Anxious, AAK High-precision Hydraulic Valve Solved The Goods Rejection Dilemma

The Hydraulic Valve Leaked Oil, Adrian Was Particularly Anxious, AAK High-precision Hydraulic Valve Solved The Goods Rejection Dilemma

Adrian, a hydraulic customer from the United States, purchased a batch of hydraulic pressure control valves from Guangdong last year. Recently, he received many complaints from users. There was slight leakage of hydraulic oil between the pressure valve and the valve block from time to time, resulting in unbalanced pressure of the hydraulic pressure valve system. In serious cases, the pressure valve went on strike directly. With more and more complaints, some users asked to return the goods. Adrian knew that if it was not solved properly, it would affect the subsequent sales of hydraulic pressure valves and even lose the market. A week later, Adrian was particularly anxious because he had not determined a complete solution.

Through Google search, Adrian saw our website . There happened to be an article about the valve block, which mentioned that for the 5 parameters of valve block production, AAK hydraulic valve block is manufactured strictly in accordance with its own 5 processing procedures to ensure at least 7H screw hole machining accuracy requirements; the roughness of mounting hole should be at least Ra0.8; the geometric tolerance is 0.02-0.05MM; the surface roughness of 0-ring groove is at least Ra3.2, and the surface roughness of flow channel is at least Ra12.5. More importantly, the fit clearance error between the hydraulic pressure valve and the valve block produced by AAK can be reduced to 2μm-3μm. This is a standard that many manufacturers can't reach at present.

After reading this article, Adrian immediately ed us to ask if the hydraulic pressure valve can be leak free. I asked him to send drawings and tell us the difficulties he is facing. Maybe he knew at that time that AAK should be able to help him. After he send us the shipment sample of the hydraulic pressure valve, then we can discuss it later.

After receiving and checking the hydraulic pressure valve samples, we found that most of the parameters of the hydraulic pressure valve passed the test. The biggest problem was that the fit clearance between the valve and the valve block was 8μm-10μm, this was the main reason why the hydraulic oil leaked from time to time. According to his drawings and the working scene of the hydraulic pressure valve, we told him that we could achieve no leakage. If necessary, we could send samples of hydraulic pressure valves within 10 days. Adrian was surprised why we were so confident.

The 5 production processes of AAK Hydraulic valve block: 1) pretreatment - 2) machining - 3) deburring - 4) cleaning - 5) assembly and inspection. We have 5 parameters as hard indexes and 1 feature. The matching clearance error between hydraulic pressure valve and valve block can be reduced to 2μm-3μm, 2-3 times smaller than our peers, which is the root of our confidence.

On the 5th day after sending the hydraulic pressure valve samples, the test was passed. Adrian hoped to produce 150 hydraulic pressure valves as soon as possible to solve the goods rejection dilemma. His customers reported that the AAK hydraulic pressure valves are easy to assemble, sensitive to action, low in vibration, and would not leak oil when increasing the working pressure. After we confirmed the delivery details of 150 hydraulic pressure valves with Adrian, he said that he could finally have a comfortable sleep.

AAK hydraulic pressure valve has small vibration, sensitive action and no leakage. Won't you try it?



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