WD-3510 - Butterfly Valve - Ductile Iron, Fire Protection, UL Listed

The NIBCO® ductile iron butterfly valve is engineered for the demanding needs of automatic sprinkler systems, providing a bubble-tight shutoff with its EPDM molded-in seat liner and ductile iron disc. Designed with an internal stem/disc geometric drive, it eliminates the need for pins or bolts, reducing the risk of leaks and turbulence in the waterway. An extended neck allows for insulation up to 2 inches, making it ideal for fire protection applications. NIBCO® butterfly valves are backed by a 5-year, 125% limited warranty, offering a reliable and cost-effective solution for commercial, mechanical, and fire protection systems.