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The twin disc check valve is grooved end style. Grooved silent check valves may be installed in horizontal positions (or vertical with flow moving up). This valve is listed by Underwriters Laboratories of the US and Canada (UL/ULC). 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, fire protection and industrial applications. NIBCO® check valves are backed by the NIBCO 5-year 125% limited warranty.
Check Valve - Iron, Fire Protection, Grooved, KG-900-W-350
Unit of Measure
1 

Material Number

UPC Code

Valve Size

Connection Type

Description

Turns/Operation

NLM350XE N/A 039923358462 N/A 2 1/2 N/A G - Grooved N/A KG900W350-LF 21/2 GRV CK 350PSI UL ONLY N/A Non-Manual
NLM350XF N/A 039923358479 N/A 3 N/A G - Grooved N/A KG900W350-LF 3 GRV CK 350PSI UL ONLY N/A Non-Manual
NLM350XH N/A 039923358486 N/A 4 N/A G - Grooved N/A KG900W350-LF 4 GRV CK 350PSI UL ONLY N/A Non-Manual
NLM350XK N/A 039923358493 N/A 6 N/A G - Grooved N/A KG900W350-LF 6 GRV CK 350PSI UL ONLY N/A Non-Manual
NLM350XL N/A 039923358509 N/A 8 N/A G - Grooved N/A KG900W350-LF 8 GRV CK 350PSI UL ONLY N/A Non-Manual
NLM350XM N/A 039923358516 N/A 10 N/A G - Grooved N/A KG900W350-LF 10 GRV CK 350PSI UL ONLY N/A Non-Manual
Unit of Measure
1