Bundor works with you to understand the definition of valve

Valves are devices used in liquid systems to control the direction, pressure and flow of fluids. A valve is a part that causes the medium (liquid, gas, powder) in the piping and equipment to flow or stop and control the flow.

Valves for fluid control range from simple globe valves to extremely complex automatic control systems. Valves can be used to control water, steam, oil, gas, mud, various corrosive media, liquid metal and radioactive fluid and other types of fluid flow. Valve control can be used in a variety of transmission way, can the pressure, temperature or other forms of sensing signal, in accordance with the requirements of the scheduled action, or don't rely on sensor signals and simple open or closed, rely on the drive or automatic valve body makes the opening and closing movements, translation, rotation movement, so as to change the size of the flow channel to realize the control function.