What is a valve

What is a valve

Valves are generally divided into automatic valves and actuated valves. Automatic valves (such as safety valves, pressure reducing valves, steam traps and check valves) rely on changes in the medium pressure of equipment or pipelines to achieve the purpose of opening and closing. The valve (gate valve, globe valve, ball valve, butterfly valve, etc.) is driven by the driving device (manual, electric, hydraulic, pneumatic, etc.) to adjust the pressure, flow and direction of the medium in the pipeline. Due to the different pressure, temperature, flow and physical and chemical properties of the medium, the control requirements and use requirements for the equipment and piping system are also different, so the functions of the valves are also different.