The pneumatic flange hard seal butterfly valve series is a long-lived, energy-saving butterfly valve. Its structure is designed using the three-dimensional eccentric principle, and the new processing technology that combines elastic sealing with hard and soft multi-layer sealing reduces the torque force during operation, achieving labor-saving and energy-saving functions. This ensures overall reliability in terms of corrosion resistance, high temperature resistance, and wear resistance. It is suitable for use as an optimal device for regulating flow and cutting off fluid in food, pharmaceutical, petrochemical, power plant, steel plant, industrial environmental water treatment, high-rise buildings, and water supply and drainage pipelines.
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