| Message: | Margaret is from a hydraulic equipment company in the United States. At the end of last year, some of their drilling rigs were complained by customers that they were unable to work. The problem was the leakage caused by the wear of the hydraulic flow control valves. The original hydraulic flow control valve manufacturer said that due to long-time high-pressure and high-frequency operation, the wear of the valve body is difficult to avoid, so the hydraulic flow control valves can only be replaced. After half a year, the fault occurs again, and it seems that the hydraulic flow control valves can only be replaced once every half a year. After the boss knew about it, he was not satisfied with this high frequent after-sales service. He asked Margaret to find a new hydraulic flow control valve manufacturer, and added the parameter requirements of high pressure resistance in the inquiry.
In the first round, Margaret contacted with more than 10 hydraulic valve suppliers that she was satisfied with in the past, and only 3 said that they could have a warranty period of half a year to 1 year under high pressure. Margaret should not be satisfied with this reply either. After being introduced by one of our old customers, she contacted me. I suggest that she use durability to measure the service life of hydraulic flow control valves. After communicating with their engineers, she requested that the durability of this hydraulic flow control valve be more than 1.5 million times.
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