Flow Control Valves in the Plumbing category from GoVets are the perfect solution for completing or working on your project. Butterfly Valves are a type of flow control valve that is used to regulate the flow of liquids and gases. They are designed with a disc-shaped closure element that is positioned in the center of the pipe. The disc is connected to a rod that is used to open and close the valve. Butterfly Valves are available in a variety of sizes and materials to meet the needs of any project. Shop today to find the perfect Flow Control Valves for your project.