Home Butterfly Valve Nibco LD-3510 Ductile Iron, Sprinkler System, UL Listed Butterfly Valve

Nibco LD-3510 Ductile Iron, Sprinkler System, UL Listed Butterfly Valve

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Nibco LD-3510 Ductile Iron, Sprinkler System, UL Listed Butterfly Valve
Manufacturer: Nibco

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.

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Features Applications Model Document
  • 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
  • Size range 2” to 12”

The NIBCO® lug type butterfly valve is classified as a fire protection control valve that is Underwriters Laboratories listed and FM Approved for bubble-tight shutoff at 250 psi water working pressure.

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