I metal butterfly valve can be classified according to the connection mode of the company is: the wafer butterfly valve and flanged butterfly valves, welding type butterfly valve, etc., according to the drive mode can be classified as: manual butterfly valve, turbine butterfly valve, pneumatic butterfly valves, electric butterfly valve, hydraulic control butterfly valve, etc., can be classified as: according to the use of ventilation butterfly valve, telescopic butterfly valve, etc., as well as production of piping expansion joints, compensator, soft rubber joints, such as the attachment, this series of products are widely used in the water and electricity, sulfuric acid, metallurgy, petroleum, municipal construction and other industries.
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