A Butterfly Valve used in a hydraulic reservoir is a quarter-turn valve that is used to control the flow of hydraulic fluid. It consists of a rotating disc that is positioned in the center of the valve body. When the valve is closed, the disc blocks the flow of fluid. When the valve is open, the disc is rotated to a position perpendicular to the flow direction, allowing fluid to pass through.Attributes: • Regulate the pressure of the hydraulic fluid• Help to prevent contamination of the hydraulic fluidApplications:A Butterfly Valve is used to control the fluid's direction and volume, ensuring optimal performance and safety within the hydraulic system.