In Euramerican wait for industrial developed country, the use quantity of ball valve already took whole a powerful person kind 15% above, and have the tendency that rises ceaselessly. With other a powerful person kind photograph comparing, ball valve has fluid resistance small, switch is convenient and quick, sealed function is reliable, wear away small, valve passageway level off is smooth wait for an advantage. But common ball valve is used get together the soft sealed texture such as 4 fluorine ethylene, its used temperature to get very big limitation.
As the development of modernization of our country industry, the ceaseless emerge in large numbers of all sorts of new technological process, while domain and the international such as oil, chemical industry, metallurgy, electric power conform, to valve the product raised taller requirement, although common ball valve has other a powerful person kind the advantage that cannot compare, but the requirement that its cannot satisfy below high temperature operating mode to use. Accordingly, development stabilizes the ball valve that moves reliably below high temperature operating mode, already made the pressing demand of broad user, also be the inevitable tendency that modern industry grows.
-- news source: Always fine county limited company of Zheng Xu valve