阀门模型系列-球阀 valve model series--ball valve

阀门，工业中的重要元件，它可以控制流体的开闭和流量。

Valves are important components in industry that can control the opening, closing, and flow of fluids.

这个系列是一个小系列，我设计了一些阀门的简易可动剖面模型，意在有些教育作用。

This series is a small series, and I have designed some simple movable sectional models of valves with the intention of providing some educational value.

球阀，一种阀体重要部件为球体的阀门，其有最小的流体阻力，且不太容易在无润滑的情况下卡住，所以使用十分广泛。

Ball valve, a type of valve with a spherical body as an important component, has minimal fluid resistance and is less likely to get stuck without lubrication, so it is widely used.