Butterfly valve product descr1ption    This valve is suitable for the water、oil、gas or corrosive medium pipeline to be used for two-way opening and closing and adjusting medium flow.    

Features    1.  The valve adopts double-eccentric structure, the more closed tight sealing that more reliable.    2.  Secondary sealing is used stainless steel NBR rubber oil for long working life.     3.  Rubber seal can be installed on body or disc for applying various medium according to customers' requirements.    4.   Disc adopts high strength、large flow area and small flow resistance frame structure.    5.   The whole of baking finish can efficiently prevent corrosion which is also used for various medium by only replacing the seat sealing material.       6.   The valve has bidirectional seal function so it is not controlled by medium flow direction and not affected by spatial position when installing.     7.   The valve can be operated flexibly and effortlessly.    

Valve material : cast iron、carbon steel、stainless steel    Sealing material: EPDM (-40~+125°C)、NBR (-20~+82°C)、SI   (-70~+150°C)、FPM (-23~+150°C)、CR   (0~+80°C)、PTFE (+10~+150°C)    Flange conncetion dimension: GB/T17241.6-98, GB9115-88    Structure length: GB2221-89    Pressure test: GB/T13927-92    Application: fresh water、sewage、seawater、air、steam、food、medicine、various oil、acids、alkalies、salts and etc.