Butterfly valves are suitable for pipelines transporting various corrosive and non-corrosive fluid media in engineering systems such as generators, coal gas, natural gas, liquefied petroleum gas, city gas, cold and hot air, chemical smelting and power generation and environmental protection, for regulation and interception The flow of the medium.
The main reason for the damage of the soft sealing butterfly valve is actually that the valve is not selected according to the working conditions, and the shutoff valve is used as a throttle valve, resulting in excessive closing pressure and closing too fast or not tightly, causing the sealing surface to be eroded and worn. . The erosion of the medium is the result of wear, erosion and cavitation on the sealing surface when the medium flows. Therefore, it is very important to choose valve products according to the use environment and operating conditions.
The reasons for the damage of the sealing surface of the soft sealing butterfly valve are man-made damage and natural damage. Man-made damage is caused by factors such as poor design, poor manufacturing, improper material selection, improper installation, poor use, and poor maintenance.
