NIBCO® ductile iron butterfly valves provide ease of operation with quarter-turn (90 degrees) open to close. The unique molded-in EPDM seat liner with ductile iron disc is recommended for most water applications. 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.
The NIBCO® wafer type butterfly valve provides bubble-tight shutoff at 250 psi and is recommended for quick installation and removal from piping. The valve performs well in isolation and throttling applications, commercial and some light industrial process applications, including HVAC and vacuum services.
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