Common faults are: â‘ valve broken; â‘¡ media backwards. Caused by the valve is broken because: before and after the check valve medium pressure is close to balance and mutual "see-saw" state, the valve flap often flap and some brittle materials (such as cast iron, brass, etc.) made of Disc is broken. Prevention is to use the valve for the tough material check valve. The reasons for the media back flow are: â‘ sealing surface damage; â‘¡ clip into the impurities. Repair the sealing surface and cleaning impurities to prevent backflow. The above description of common faults and prevention methods can only serve as inspiration. In actual use, other faults may also be encountered. In order to prevent the occurrence of valve faults actively and flexibly, the most fundamental one is to be familiar with its structure and material And action principle.
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