The NIBCO® carbon steel ball valve provides ease of operation with quarter-turn (90 degrees) open to close. The reinforced PTFE 15% glass seat ring, Graphite stem packing and stainless steel ball/stem exhibits high chemical resistance properties and is recommended for process piping. The valve also features an enclosed bolt design. This valve features a standard lockable lever handle for security purposes. It may be used for isolation and throttling (half open to full open only). Please refermore to NIBCO technical data sheets, valve selection guides, chemical resistance guide and catalog for engineering and installation information. Choose NIBCO® ball valves for the most specified, versatile and economical valve option in commercial and industrial applications. NIBCO® ball valves are backed by the exclusive NIBCO INC. 5-year 125% limited warranty. less