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NEWS

NEWS

Check valve how to solve the test pressure

Shijin2020-06-30

Check valve refers to a valve that actively opens and closes the valve flap by relying on the activity of the medium itself to avoid backflow of the medium. It is also called a check valve, a check valve, a ... Read More

Cause of valve leakage

Shijin2020-06-30

1. The cause of valve leakage during construction period:① Improper transportation and hoisting cause the overall damage of the valve and cause the valve to leak; ② When leaving the factory, after the water pressure is applied, the valve is ... Read More

Causes and solutions of valve sealing surface leakage

Shijin2020-06-30

The reasons for the leakage of the sealing surface are generally as follows:1. The sealing surface is unevenly ground and cannot form a close line; Second, the center of the connection between the valve stem and the closing piece is ... Read More

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