Hydraulic pressure control valve under high pressure and frequency use, the service life of original

Payne is from a hydraulic equipment company in the United States. He did not have much cooperation with AAK, until the purchase of a hydraulic pressure control cartridge valve suffered a loss elsewhere, he trusts AAK more and more. 2 years ago, their company sold tunnel boring machines. Less than half a year after sales, customers complained that the equipment was on strike. The after sales worker found that the contact surface between hydraulic pressure control cartridge valve spool and valve cage of hydraulic system of equipment had signs of wear. It was judged that the leakage led to insufficient pressure supply for system, and they went on strike. The original manufacturer of hydraulic pressure control cartridge valve pushed the buck.

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