Description
This NIBCO lug style butterfly valve is classified as a fire protection control valve that are Underwriters Laboratories listed and Factory Mutual approved for bubble-tight shutoff at 250 psi water working pressure. Wafer valves are recommended for quick installation and removal from piping. This 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. These valves are installed and monitored in fire protection applications where they remain in the normally closed position. A typical application would be fire pump test bypass lines. 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 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.
Features
- Valve pressure rating 250 psi wwp
- Lug style
- EPDM molded-in seat liner
- Designed for normally closed position monitoring
- Ductile iron disc
- Stainless steel stem with copper bushings
- Geometric drive
- Extended neck
- Operating mechanism: Manual gear operator
- Available with (suffix 8N) internal monitor switches
- UL/ULC Listed
- FM Approved
- UL Listed for Indoor and Outdoor Service
- Conforms to MSS SP-67, MSS SP-25
