The electric hard-sealed butterfly valve employs a triple-eccentric structure with frictionless transmission between sealing surfaces. It features excellent wear resistance, superior mechanical properties, high-temperature and high-pressure tolerance, and extended service life. Available in wafer-type and flanged configurations based on connection methods, it suits diverse piping systems and corrosive media environments. The sealing elements of electric hard-seal butterfly valves are composed of metal materials or other hard compounds, such as stainless steel + hard alloy. They are widely applied in pipelines handling media with temperatures ≤550°C, including chemical processing, environmental treatment, gas, oil, steam, water, and corrosive media.