The 24th China International Petroleum and Petrochemical Technology and Equipment Exhibition

Metal-seated triple offset butterfly valves are valve components used for on/off control and flow control in pipeline systems. They are mainly used in petroleum, chemical, metallurgical, hydropower, and urban heating industries. They can be used in industrial pipelines with a medium temperature ≤425℃ for regulating flow and cutting off fluid.Structural Features The metal-sealed triple-eccentric butterfly valve employs a triple-eccentric design, where the valve stem axis is offset from both the butterfly plate center and the body center. The valve seat rotation axis and the valve body channel axis form an angular sealing structure. This structure includes three eccentric designs: the axis offset from the valve seat centerline, the axis offset from the pipeline centerline, and the valve seat cone tilt. The valve seat sealing ring is typically composed of a soft T-shaped sealing ring and multiple layers of stainless steel sheets. The valve plate sealing surface is overlaid with a corrosion-resistant alloy to form a slanted conical structure.

Fully welded ball valves are high-performance valves where all components are welded together, eliminating threaded or flanged connections. This results in a robust valve body, reliable sealing, and effective prevention of media leakage, making them particularly suitable for high-temperature, high-pressure, highly corrosive, and highly abrasive applications.