The valve is the control component in the fluid conveying system, with the functions of cut-off, regulation, diversion, preventing countercurrent, pressure stabilization, diversion or overflow pressure relief.
Valvalve used in fluid control system, from the most simple stop valve to the extremely complex automatic control system, its varieties and specifications are quite various. Valves can be used to control the flow of various types of fluids such as air, water, steam, various corrosive media, mud, oil, liquid metal and radioactive media. According to the material, the valve is also divided into cast iron valves, cast steel valves, stainless steel valves (201,304,316, etc.), chromium molybdenum steel valves, chromium molybdenum vanadium steel valves, dual-phase steel valves, plastic valves, non-standard customized valves, etc.