Ball valve and butterfly valves are commonly used. Some situations can be common, and some conditions is one of them can only be used for. The main difference between the two is that the structure and switching principle. Our brief analysis:

    Ball: plug valves evolved, opening and closing parts is the sphere. Features: 1, low flow resistance; 2, the larger the pressure and higher temperatures, can be completely sealed; 3, can quickly open and close; 4, the sealing structure to determine its comparative design and corrosive pick up their kids; 5 body symmetry, can withstand the pressure pipe can cope with high-pressure conditions;

    Butterfly: opening and closing parts are open around disc, characterized by: 1, simple structure, small size, easy installation; 2, the flow resistance coefficient is small, open and close quickly; 3, can be used for large diameter valves; 4 can be applied to different sealing surface, using a variety of environments, including powder, granular media, etc.;

    Relative to the butterfly valve, sealing a bit weak, but the large diameter valves, butterfly valves, ball than to have the unique advantage; as adjust the flow with time, little butterfly adjustment range, and V-type regulating valve, adjustment precision. In addition, high-pressure pipe, ball valve than an advantage.

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