Valve is one of the common fittings used in pipelines. It can be used to control the flow of various fluids, such as air, water, steam, various corrosive media, slurry, oil, liquid metal and radioactive media.
Valves can also be divided 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, non-standard customized valves, etc. According to the difference of materials.
Compared with plastic valves, metal valves have more advantages than plastic valves in terms of high temperature and high pressure resistance. Many aspects of plastic valves can not replace metal valves.
Metal valves are mainly used in oil refining devices, chemical fiber devices, hydroelectric power stations, metallurgical industry, mining industry, gas, urban water supply and other fields.