The NIBCO Ring Check valve is uniquely designed with an in-line, spring assisted self-closing disc. The lift check valve prevents backflow by automatically closing when fluid reverses direction. The valve is constructed of high quality lead-free dezincification-resistant (DZR) performance bronze silicon alloy per ASTM specifications. The lead-free valve is recommended for applications that deliver water for human consumption, including commercial and residential construction.

Nibco T480YLF34 T-480-Y-LF Silicon Bronze Check Valve, Inline, PTFE Seat, 3/4" Female NPT Thread (FIPT)

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The NIBCO Ring Check valve has threaded end connections for ease of installation. This check valve may be installed in horizontal positions or vertical with flow moving up. Please refer to NIBCO technical data sheets, chemical resistance guides and catalogs for engineering and installation information.


  • Valve pressure rating 250 psi/17. 2 bar non-shock cold working pressure
  • In-line lift-type
  • Spring actuated
  • PTFE resilient seat disc
  • NIBCO double-oval lead-free body marking
  • Item Dimensions LxWxH: 2.24 x 1.59 x 1.59 inches
  • Specification Met: NSF/ANSI 61 and NSF/ANSI 372