The NIBCO® flanged cast iron gate valve may be used in commercial and industrial applications which convey oil or gas fluids that are corrosive to bronze trim but allowable for iron or steel. Please refer to NIBCO technical data sheets, chemical resistance guides and catalogs for engineering and installation information. Choose NIBCO® gate valves for the most specified, versatile and economical valve option in commercial, mechanical and industrial applications. NIBCO® valves are backed by themore NIBCO 5-year 125% limited warranty. less