The Hydraulic Counterweight Butterfly Valve is a valve that may be used to isolate or regulate flow. The closing process has the form of a disc. Operation is similar to that of a ball valve, allowing for quick shut off. Hydraulic A support Butterfly Valves are popular because they are less expensive than other valve kinds, as well as lighter in weight, which means less support is required. The disc is located in the center of the pipe, with a rod going through it and attaching to a mechanism on the valve's surface. Rotating the actuator causes the disc to turn either parallel or perpendicular to the flow direction. Unlike a ball valve, the disc is frequently present inside the flow.