Ball valves and butterfly valves are more commonly used valves. Some occasions can be common, and some conditions can only use one of them. The difference between the two lies mainly in the structure and switching principle. Our brief analysis: Ball valve: Plug valve evolved, opening and closing pieces of the ball. Features: 1, low flow resistance; 2, greater pressure and higher temperatures, can be completely sealed; 3, quick opening and closing; 4, the sealing structure determines its comparative and corrosive pick the child; 5, The valve body is symmetrical, can effectively withstand pipeline pressure, can cope with high pressure conditions; Butterfly valve: opening and closing pieces are disc type left and right open, characterized by: 1, simple structure, small size, easy installation; 2, Closed quickly ,; 3, can be used for large-caliber valves; 4, the application of different sealing surface, the use of a variety of environments, including powder, granular media, etc .; butterfly valve relative to the ball valve, sealing slightly worse, , Butterfly valve than the ball valve to have a unique advantage; as used to regulate the flow of time, the butterfly valve adjustment range is not large, and V-type adjustment of the ball valve, accurate regulation. In addition, ball valves have advantages over butterfly valves in high-pressure lines.
Henan Qianli Machinery CO. Ltd is a profession manufacture of Farm Tractor, rice machine, Reaper Machine, Power Tiller, garden machine and other farm implements. Our factory was established in 1987 and has more than 30 years of production and sales experience. We focus on providing customers with high-quality products and excellent services.
The corn maize peanut hand seeder can be used for planting corn, soybeans, etc., with simple structure and easy operation
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