Valves

Valves are pipeline accessories used to open and close pipelines, control flow direction, regulate and control the parameters of the conveying medium (temperature, pressure, and flow). According to their functions, they can be divided into shut-off valves, check valves, regulating valves, etc.
阀门是用于开闭管道、控制流向、调节和控制输送介质参数（温度、压力和流量）的管道附件。根据功能，它们可分为截止阀、止回阀、调节阀等。
Valves are control components in fluid transport systems, with functions such as shut-off, regulation, diversion, prevention of backflow, stabilization, diversion, or overflow pressure relief. Valves used in fluid control systems have a wide variety of varieties and specifications, from the simplest globe valves to various valves used in extremely complex self-control systems.
阀门是流体输送系统中的控制组件，具有关闭、调节、分流、防止回流、稳定、分流或溢流压力释放等功能。流体控制系统中使用的阀门种类繁多，规格多样，从最简单的球形阀到极其复杂的自控系统中使用的各种阀门。
Valves can be used to control the flow of various types of fluids such as air, water, steam, various corrosive media, mud, oil, liquid metals, and radioactive media. Valves can be divided into cast iron valves, cast steel valves, stainless steel valves (201, 304, 316, etc.), chromium molybdenum steel valves, chromium molybdenum vanadium steel valves, duplex steel valves, plastic valves, non-standard customized valves, etc. according to their materials
阀门可用于控制各种流体的流动，如空气、水、蒸汽、各种腐蚀性介质、泥浆、油、液态金属和放射性介质。阀门可根据材料分为铸铁阀、铸钢阀、不锈钢阀（201、304、316等）、铬钼钢阀、铬钼钢阀、双联钢阀、塑料阀、非标准定制阀等