180°截止閥-可以完全打開(kāi)或關(guān)閉，以允許或停止液體或氣體的流動(dòng)

A stop valve is a type of valve used to control the flow of fluid in a pipeline. It can be fully opened or closed to either allow or stop the flow of liquid or gas. These valves are commonly used in plumbing, heating systems, and industrial applicatio. They are designed to isolate specific sectio of a pipeline for maintenance or repair purposes. Stop valves can be manually operated or automated, and they play a crucial role in controlling the flow rate and pressure of fluids in various industries.