Description

On the basis of introducing foreign advanced technology, our factory adopts precise J-shaped elastic sealing ring and three eccentric multi-level metal hard sealing structure. D373h Wafer Type Hard Seal Butterfly Valve is widely used in gold treatment, electric power, petrochemical industry, water supply and drainage, municipal construction and other industrial pipelines with medium temperature ≤ 425 ℃ for regulating flow and carrying off fluid. The Wafer Type Hard Seal Butterfly Valve adopts three eccentric structure, and the sealing surfaces of valve seat and disc plate are made of stainless steel with different hardness. It has good corrosion resistance and long service life. The Wafer Type Hard Seal Butterfly Valve has the function of military mail two-way sealing, and the product meets the national valve pressure test standard GB / T13927-92.