WD-3510-C-8 - Butterfly Valve - Ductile Iron, Fire Protection, Normally Closed, UL Listed, Wafer Style

The NIBCO® ductile iron butterfly valve is specifically designed for automatic sprinkler systems, offering a bubble-tight shutoff at rated pressure with its EPDM molded-in seat liner and ductile iron disc. Ideal for fire protection applications, these valves remain in the normally closed position and are commonly used in fire pump test bypass lines. The internal stem/disc geometric drive eliminates the need for pins or bolts, preventing leaks and turbulence. With an extended neck for insulation up to 2 inches, these valves provide reliable performance and are backed by a 5-year, 125% limited warranty.