What is the definition of a motorized butterfly valve? A motorized butterfly valve is a type of flow control valve that uses a circular disc to open and close a passageway. It is usually mounted on a rotating shaft or spindle that is powered by an electric motor. The motorized butterfly valve is used in many industrial processes, such as steam and water flow regulation, air circulation, and other types of liquid and gas flow control. The butterfly disc is usually made from a durable material, like metal or plastic, and it is designed to rotate on its axis, rather than along a straight line. When the disc is open, it allows for the passage of a desired amount of liquid or gas, and when it is closed, it prevents the passage of the substance. The butterfly disc is controlled by the electric motor, which allows for precise regulation of the flow. The motorized butterfly valve is not only used for controlling the flow of liquid or gas, but it can also be