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D71J-J rubber lined butterfly valve is the valve in order to meet petroleum, chemical industry, metallurgy, electricity and water piping systems in the areas of media transmission and high performance butterfly valves designed for flow control, usually installed horizontally in the pipes, suitable for 80~120? working temperature. Compared with the traditional butterfly valves, D71J-J rubber lined butterfly valve high temperature resistant, light, opening and closing operation without friction, can be used for all kinds of liquids, in industrial pipeline gas transportation