A grooved butterfly valve is designed with grooved ends to connect easily to pipes that also have grooved ends. The grooves on both the valve and the pipe allow them to be joined using grooved couplings (often called Victaulic or clamp-type couplings). This connection method makes installation faster and easier compared to flanged or welded joints, while still providing a secure, leak-resistant seal.
Grooved butterfly valves are typically used in HVAC systems, fire protection systems (often UL/FM rated), industrial piping, and water treatment systems.