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A valve is a key device that controls the flow of fluids through a pipeline. It is like a "traffic controller" in a pipeline system, ensuring that liquids and gases are only allowed to flow in one direction. Industrial valves are used in many fields, including drinking water treatment, wastewater treatment, power generation, manufacturing, chemical processing, petrochemical processes, fire suppression, flushing, biopharmaceutical applications, and food and beverage manufacturing.

Most industrial valve components have common functions. These components include the actuator, valve body, valve cover, valve trim, valve stem, and transmission. The actuator is like the "operator" of the valve, responsible for providing the power to open and close the valve. The actuator can be manual, pneumatic, or electric, and provides the necessary torque for the valve to complete the opening and closing action. The valve body is the outer shell of the valve, which provides structural support and contains the internal components. The valve cover is located on the top of the valve and is responsible for containing the valve stem and other internal components. It can be removed to facilitate maintenance and repair of the valve.

Valve trim is a term used to describe all internal components of the valve that come into contact with the controlled medium, including the transmission, valve seat, and valve stem. The valve seat and valve disc are the main sealing devices of the valve. Generally speaking, the actuator can be ball, wedge or disc-shaped, depending on the type of valve. In the figure above, the valve disc is attached to the valve stem and moves to block or allow fluid flow. It presses against the valve seat to form a tight seal. The valve stem connects the actuator to the valve disc and transmits the actuator's movement, thereby opening or closing the valve.

Industrial valves are of various types and have a wide range of applications. They are an indispensable and important component in industrial production. The valve product solutions provided by South Valve for industrial applications help you choose the most suitable valve product!