D81X Grooved Handle Butterfly Valve, also known as Handle Grooved Butterfly Valve and Handle Clamp Butterfly Valve, features advantages such as quick installation, simplicity and reliability, good sealing performance, flexible operation, and convenient maintenance. It not only has excellent sealing performance but also offers the quickness required for connection with pipes, which is a result of our company's multiple practical designs. The handle of the grooved handle butterfly valve cooperates