The NIBCO® ductile iron butterfly valve is designed specifically to meet the rigorous requirements of automatic sprinkler systems. The unique EPDM molded-in seat liner with ductile iron disc provides bubble-tight shutoff at rated pressure. With the internal stem/disc geometric drive design there is no need for pins or bolts that may create leak paths or turbulence in the waterway. An extended neck allows for insulation up to 2 inches. Please refer to NIBCO technical data sheets, chemical resistance guides and catalogs for engineering and installation information. Choose NIBCO® ductile iron butterfly valves for the most specified, versatile and economical valve option in commercial, mechanical and fire protection systems. NIBCO® butterfly valves are backed by the NIBCO 5-year 125% limited warranty.
Rubber-Seated Butterfly Valves IOM
- Valve pressure rating 250 psi wwp
- Lug style
- EPDM molded-in seat liner
- Ductile iron disc
- Stainless steel stem with copper bushings
- Geometric drive
- Extended neck
- Operating mechanism: Manual gear operator
- Available with (suffix 8N) or without (suffix 4N) internal monitor switches
- Available in-ground post (suffix GP) or wall post (suffix WP) versions - UL only
- UL/ULC Listed
- UL Listed for Indoor and Outdoor Service
- FM Approved
- Conforms to MSS SP-67, MSS SP-25
- Approved by New York City MEA 9-97-E, Vol.2 when assembled with appropriate NYC indicator flag
- California State Fire Marshal Listing No. 770-1243:104
Rubber-Seated Butterfly Valves IOM
Manufacturer Resources
Product Specs
- All Application(s):
- Fire Protection
- All Basic Material:
- Ductile Iron
- Classification:
- Ductile Iron Butterfly Valves
- End Connection:
- Lug
- Product Group:
- Valve
- Seat Seal Material:
- EPDM Rubber
- System Use:
- Fire Protection, Automatic Sprinkler Systems
- Type of Valve:
- Butterfly Valve
- Valve End Connection Type:
- L - Lug
- Valve Pressure Rating (PSI):
- 250 PSI rated pressure
- Parent sku:
- NBC-LD-3510