Ball valve design with simple compact in structure, small overall dimensions, fast in switching, less in flow resistance, convenient for pneumatic and electric control, non-directional installation, thus it has been widely used under the high temperature and high pressure working conditions such as daily chemicals, fine chemicals, biochemical & biotechnology, pharmaceutical, shipbuilding, paper making, printing and dyeing, coating, environmental protection, refrigeration, oils & fats, greases, brewing, food and beverage, water treatment, urban construction and etc.

Butterfly valve has the features as simple in overall size and fast in switching, thus butterfly valve can be suitable for the mediums with different viscosities or semi-fluids even granular solid working condition, widely use in chemical, pharmaceutical, shipbuilding, papermaking, printing and dyeing, painting, environmental protection, oils and fats, biotechnology, fine chemicals, food and beverage, water treatment, urban construction and etc.