2025 年 2 月 27 日

1. Introduction to Manual Valves Manual valves control fluid flow in piping systems using a hand-operated mechanism. They are essential in residential, commercial, and industrial applications where precise flow control is required. Unlike automated valves, manual valves do not rely on external power sources, making them reliable in emergency situations. Different manual valves serve specific

1.引言 工业过程阀和仪表控制着各行各业的流体流量、压力和温度。这些部件可确保管道的效率、安全性和可靠性。石油和天然气、化学处理、水处理和发电等行业都依赖于精确的阀门和仪表选择。阀门调节液体和气体的流动，而仪表则测量流量和温度。