Why are butterfly valves generally chosen for large-diameter pipes?
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This post was last edited by zhaohh3211 on 2012-10-14 11:38. Why are butterfly valves generally chosen for large-diameter pipes?
:Save money. . . . . . . . . . . . . . . . . . . . . . . . . . .
The principle for selecting valves is based on operating temperature and operating pressure; the pipe diameter has little impact. Butterfly valves are generally used in applications with favorable operating conditions.
Gate valves are also used for large-diameter pipelines, such as 700mm gas transmission pipelines
Functionally, ball valves are the best choice, but large-diameter ball valves are too expensive; butterfly valves, on the other hand, are much cheaper
Other than process conditions, it’s about saving money.
For normal process isolation valves, the goal is to save money; small-diameter butterfly valves have poorer flow characteristics compared to ball valves, which is why ball valves with full bore are more commonly used. However, ball valves for large pipelines are costly, while butterfly valves offer a clear cost advantage.
Well, last time when we worked on a project, it was precisely because of the large diameter of the pipe connections that we chose ball valves; it is said that butterfly valves don’t have connection sizes for such large diameters. Is that true? ? ?