Zhejiang Baolong Valve Manufacturing Co., Ltd. in the innovation and transformation, the implementation of product strategy to organize personnel to develop new products, with a senior engineer Comrade Kwong Chi book mainly to lead the relevant technology (valves, pumps) and all party members to conduct technical research and first-line production practices, After more than a year of hard work, tackling hardship and making constant improvements through trial and error, it finally won the "invention patent" by the State Intellectual Property Office. Now it is trying hard to push it to the market and turn it into a new growth point for the development of enterprises. This butterfly ball valve new products, including the body, stem, transmission. The spherical sealing surface is mainly composed of a sealing ring, which is fixedly arranged on the ball body through a pressure plate, the sealing surface has a conical sealing surface, the sealing surface of the valve seat has a conical sealing surface cooperating with the sealing ring, the conical sealing surface Of the eccentric angle between the cone center line and the valve body center line between the sealing ring and the seat sealing surface sealing contact surface and the stem axis has an eccentric distance between the eccentric distance greater than the valve body channel radius valve There is an amount of eccentricity between the rod axis and the body passage centerline at the side where the taper angle between the valve seat sealing face and the body passage centerline is minimum. The advantages of the utility model lie in that the ball valve and the triple eccentric butterfly valve are integrated into one body to avoid the roundness of the sphere affecting the sealing performance of the sphere and have the advantages of good sealing performance and long service life. Provide one-piece ball and seat sealing surface friction-free opening and closing, sealing surface wear less, reliable sealing performance, product life long butterfly valve. Applicable to all kinds of medium pipe switch.