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The NIBCO® cast iron check valve features flanged end connections for easy installation. It is equipped with a bolted bonnet for maintenance accessibility. Swing checks 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. Choose NIBCO® check valves for the most specified, versatile and economical valve option in commercial, mechanical and industrial applications. NIBCO® check valves backed by the NIBCO 5-year 125% limited warranty.
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Material Number

UPC Code

Valve Size

Connection Type

Description

Turns/Operation

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N/A 039923703422 N/A 2 N/A F -- Flanged N/A F918B 2 FLGD CHECK CAST IRON N/A Non-Manual
N/A 039923703439 N/A 2 1/2 N/A F -- Flanged N/A F918B 2 1/2 FLGD CHECK CAST IRON N/A Non-Manual
N/A 039923703446 N/A 3 N/A F -- Flanged N/A F918B 3 FLGD CHECK CAST IRON N/A Non-Manual
N/A 039923703453 N/A 4 N/A F -- Flanged N/A F918B 4 FLGD CHECK CAST IRON N/A Non-Manual
N/A 039923703460 N/A 5 N/A F -- Flanged N/A F918B 5 FLGD CHECK CAST IRON N/A Non-Manual
N/A 039923703477 N/A 6 N/A F -- Flanged N/A F918B 6 FLGD CHECK CAST IRON N/A Non-Manual
N/A 039923703484 N/A 8 N/A F -- Flanged N/A F918B 8 FLGD CHECK CAST IRON N/A Non-Manual
N/A 039923703491 N/A 10 N/A F -- Flanged N/A F918B 10 FLG CHECK CAST IRON N/A Non-Manual
N/A 039923703507 N/A 12 N/A F -- Flanged N/A F918B 12 FLGD CHECK CAST IRON N/A Non-Manual
N/A 039923703590 N/A 2 N/A F -- Flanged N/A F918BGG 2 CK W/GRAPHITE GSK CI N/A Non-Manual
N/A 039923703606 N/A 2 1/2 N/A F -- Flanged N/A F918BGG 2 1/2 CK W/GRAPHITE GSK CI N/A Non-Manual
N/A 039923703613 N/A 3 N/A F -- Flanged N/A F918BGG 3 CK W/GRAPHITE GSK CI N/A Non-Manual
N/A 039923703620 N/A 4 N/A F -- Flanged N/A F918BGG 4 CK W/GRAPHITE GSK CI N/A Non-Manual
N/A 039923703637 N/A 5 N/A F -- Flanged N/A F918BGG 5 CK W/GRAPHITE GSK CI N/A Non-Manual
N/A 039923703644 N/A 6 N/A F -- Flanged N/A F918BGG 6 CK W/GRAPHITE GSK CI N/A Non-Manual
N/A 039923703651 N/A 8 N/A F -- Flanged N/A F918BGG 8 CK W/GRAPHITE GSK CI N/A Non-Manual
N/A 039923703668 N/A 10 N/A F -- Flanged N/A F918BGG 10 CK W/GRAPHITE GSK CI N/A Non-Manual
N/A 039923703675 N/A 12 N/A F -- Flanged N/A F918BGG 12 CK W/GRAPHITE GSK CI N/A Non-Manual
N/A 039923703705 N/A 2 1/2 N/A F -- Flanged N/A F918BLS 2 1/2 W/LEV & SPRING CI N/A Non-Manual
N/A 039923703712 N/A 3 N/A F -- Flanged N/A F918BLS 3 W/LEV & SPRING CI N/A Non-Manual
N/A 039923703729 N/A 4 N/A F -- Flanged N/A F918BLS 4 W/LEV & SPRING CI N/A Non-Manual
N/A 039923703736 N/A 5 N/A F -- Flanged N/A F918BLS 5 W/LEV & SPRING CI N/A Non-Manual
N/A 039923703743 N/A 6 N/A F -- Flanged N/A F918BLS 6 W/LEV & SPRING CI N/A Non-Manual
N/A 039923703750 N/A 8 N/A F -- Flanged N/A F918BLS 8 W/LEV & SPRING CI N/A Non-Manual
N/A 039923703767 N/A 10 N/A F -- Flanged N/A F918BLS 10 W/LEV & SPRING CI N/A Non-Manual
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