Both ball and butterfly valves are commonly used valves. Some occasions can be used universally, and some conditions can only be used in one of them. The difference between the two lies mainly in the structure and switching principle. We briefly analyze:
Ball valve: The plug valve evolved, and the opening and closing member is a sphere. The characteristics are: 1, low flow resistance; 2, larger pressure and higher temperature, can achieve complete sealing; 3, can be quickly opened and closed; 4, its sealing structure determines its comparative design and corrosive access to children; The valve body is symmetrical, can effectively withstand the pipeline pressure, and can cope with high pressure working conditions;
Butterfly valve: The opening and closing member is a disc type left and right opening, featuring: 1. Simple structure, small volume and convenient installation; 2. Small flow resistance coefficient, rapid opening and closing; 3. Can be used for large diameter valves; 4. Application Different sealing surfaces, using various environments, including powdery, granular media, etc.;
Compared with the ball valve, the butterfly valve has a slightly poorer sealing performance. However, in the large-diameter valve, the butterfly valve has a unique advantage over the ball valve. When used for adjusting the flow rate, the butterfly valve has a small adjustment range, and the V-shaped regulating ball valve is precisely adjusted. In addition, in high pressure pipelines, ball valves have advantages over butterfly valves.
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Label: Proper selection of ball and butterfly valves
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