Valves are pipeline accessories used for opening and closing pipelines, controlling flow direction, and regulating and controlling the parameters of the transported medium (temperature, pressure, and flow rate). According to their functions, they can be classified into shut-off valves, check valves, regulating valves, and so on.
Valves are control components in fluid transmission systems, featuring functions such as cutting off, regulating, guiding flow, preventing backflow, stabilizing pressure, diverting, or relieving excess pressure. Valves used in fluid control systems range from simple gate valves to highly complex automated systems, encompassing a vast variety of types and specifications.
Valves are used to control the flow of various types of fluids, including air, water, steam, corrosive media, sludge, oils, liquid metals, and other mediums. They are further categorized by material into cast iron valves, cast steel valves, stainless steel valves (201, 304, 316, etc.), chrome-molybdenum steel valves, chrome-molybdenum-vanadium steel valves, duplex steel valves, plastic valves, and customized non-standard valves, among others.