Check valves prevent backflow by automatically closing when fluid reverses direction. The check valve is recommended for commercial and industrial water applications only. Wafer 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 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

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NLN50XM N/A 039923327307 N/A 10 N/A W -- Wafer N/A W920W-LF 10 TWIN DISC WAFER CK N/A Non-Manual
NLN50XN N/A 039923327314 N/A 12 N/A W -- Wafer N/A W920W-LF 12 TWIN DISC WAFER CK N/A Non-Manual
NLN50XT N/A 039923327338 N/A 14 N/A W -- Wafer N/A W920W-LF 14 TWIN ALUBRZ DISC WAFR CK CI N/A Non-Manual
NLN50XU N/A 039923327345 N/A 16 N/A W -- Wafer N/A W920W-LF 16 TWIN ALUBRZ DISC WAFR CK CI N/A Non-Manual
NLN50XV N/A 039923327352 N/A 18 N/A W -- Wafer N/A W920W-LF 18 TWIN ALUBRZ DISC WAFR CK CI N/A Non-Manual
NLN50XD N/A 039923327192 N/A 2 N/A W -- Wafer N/A W920W-LF 2 TWIN DISC WAFER CK N/A Non-Manual
NLN50XE N/A 039923327215 N/A 2 1/2 N/A W -- Wafer N/A W920W-LF 2 1/2 TWIN DISC WAFER CK N/A Non-Manual
NLN50XW N/A 039923327376 N/A 20 N/A W -- Wafer N/A W920W-LF 20 TWIN ALUBRZ DISC WAFR CK CI N/A Non-Manual
NLN50XX N/A 039923327390 N/A 24 N/A W -- Wafer N/A W920W-LF 24 TWIN ALUBRZ DISC WAFR CK CI N/A Non-Manual
NLN50XF N/A 039923327222 N/A 3 N/A W -- Wafer N/A W920W-LF 3 TWIN DISC WAFER CK N/A Non-Manual
NLN50XH N/A 039923327239 N/A 4 N/A W -- Wafer N/A W920W-LF 4 TWIN DISC WAFER CK N/A Non-Manual
NLN50XJ N/A 039923327253 N/A 5 N/A W -- Wafer N/A W920W-LF 5 TWIN DISC WAFER CK N/A Non-Manual
NLN50XK N/A 039923327277 N/A 6 N/A W -- Wafer N/A W920W-LF 6 TWIN DISC WAFER CK N/A Non-Manual
NLN50XL N/A 039923327291 N/A 8 N/A W -- Wafer N/A W920W-LF 8 TWIN DISC WAFER CK N/A Non-Manual
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