Definition of Science and Technology Terms

Chinese name: valve 　　　 English name: valve

Definition 1:

Device used in the pipeline to control the flow of equipment.

Subject:

Electricity (first-level discipline); hydraulic construction (second-level discipline)

Definition 2:

Equipment installed in pressure pipes to control water flow.

Subject:

Water conservancy science and technology (first-level discipline); hydraulic construction (second-level discipline); gate and hoist (third-level discipline)

The valve is a control component in the fluid conveying system. It has the functions of cut-off, regulation, diversion, prevention of reverse flow, stabilization, diversion or overflow and pressure relief. Valves used in fluid control systems, ranging from the simplest shut-off valves to the various valves used in extremely complex automatic control systems, have a wide range of varieties and specifications. 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.