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. 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.
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Material Number

UPC Code

Valve Size

Connection Type

Description

Turns/Operation

N/A 039923344519 N/A 2 1/2 N/A W -- Wafer N/A WD3510C8 2 1/2 UL/FM BFV SIGNAL CLOSED N/A Quarter-Turn
N/A 039923344526 N/A 3 N/A W -- Wafer N/A WD3510C8 3 UL/FM BFV SIGNAL CLOSED N/A Quarter-Turn
N/A 039923344540 N/A 4 N/A W -- Wafer N/A WD3510C8 4 UL/FM BFV SIGNAL CLOSED N/A Quarter-Turn
N/A 039923344564 N/A 6 N/A W -- Wafer N/A WD3510C8 6 UL/FM BFV SIGNAL CLOSED N/A Quarter-Turn
N/A 039923344571 N/A 8 N/A W -- Wafer N/A WD3510C8 8 UL/FM BFV SIGNAL CLOSED N/A Quarter-Turn
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