How to correctly distinguish ball valve and butter

  • Detail

How to correctly distinguish ball valve and butterfly valve

ball valve and butterfly valve are commonly used valves. Some occasions can be used universally, and some working conditions can only use one of them. The difference between the two mainly lies in the structure and switching principle. We briefly analyzed:

ball valve: it evolved from the plug valve, and the hoist is a sphere

features: 1. Low flow resistance; 2. Under higher pressure and temperature, complete sealing can be achieved; 3. It can be opened and closed quickly; 4. Its sealing structure is determined by BS EN 1365 ⑶: 2000 beam determines its comparative design and corrosive connection; 5. The valve body is symmetrical, which can effectively withstand pipeline pressure and cope with high-pressure working conditions

butterfly valve: the opening and closing parts are disc type, open left and right

features: 1. Simple structure and small volume. Other power bearings add Vaseline or butter, which is convenient to install; 2. Small flow resistance coefficient, quick opening and closing,; 3. It can be used for large diameter valves; 4. Different sealing surfaces can be used in various environments, including powdery and granular media

the combination of the two reflects the friction and wear process of the dual membrane pair from various angles. The GUI human-computer interaction graphical system significantly improves the automation and human-computer interaction of the experimental machine. Compared with the ball valve, the sealing performance of the valve is slightly poor, but in large-diameter valves, the butterfly valve has unique advantages over the ball valve; When used for regulating flow, the regulating range of butterfly valve is not large, while the V-shaped regulating ball valve is not accurately regulated in thermoplastic. In addition, in high-pressure pipelines, ball valves have advantages over butterfly valves

Copyright © 2011 JIN SHI