A valve is a device used to control the direction, pressure, and flow of a fluid in a fluid system. It is a device that allows the medium (liquid, gas, powder) in piping and equipment to flow or stop and control its flow. The following is a specific description of the valve:Basic structure:Usually composed of a valve body, a valve cover, a valve core (or valve disc), a seal, and an operating mechanism.Valve body: It is the main part of the valve, used to accommodate the valve core and seal, withstand the pressure of the fluid in the pipeline, and provide support and installation foundation for other parts of the valve. Its shape and size vary according to the type and use requirements of the valve.Valve cover: It is used to fix the valve core and seal. It is usually tightly connected to the valve body through bolts, nuts and other connectors. It may also have a sealing function to prevent the medium from leaking from the connection between the valve body and the valve cover.Valve core…