| Message: | Maverick is from a Canadian hydraulic equipment manufacturing company. In the first half of last year, the high-temperature hydraulic power unit dedicated to meltblown equipment sold by their company for less than 4 months was complained by customers. The engineer found that the opening pressure of the hydraulic pilot operated relief valves on the equipment deviated from the set standard pressure, resulting in unstable pressure supply. Through further inspection, it was found that the pressure spring in the valve failed. According to the feedback from the original manufacturer of the hydraulic relief valves, the fatigue resistance of the pressure spring is reduced due to the working condition environment exceeding 350℃ and long-term full load operation, so the pressure spring can only be replaced. 3 months later, the same problem occurred again. The customer complained directly to the boss. The boss asked maverick to source the hydraulic pilot operated relief valves with a service life of more than 1 year to replace the current stock. Maverick contacted more than 10 hydraulic relief valve manufacturers and they all said that the pressure spring life of the hydraulic pilot operated relief valves can only be guaranteed for 6 months under the high temperature of 350℃. The boss has pushed twice, but the new manufacturer of the hydraulic relief valves has not been found. Maverick is worried. |
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