The NIBCO® Safety-Vent® feature provides air exhaust capability while holding full upstream pressure in a closed position. The bronze ball valve provides ease of operation with quarter-turn (90 degrees) open to close, and bubble-tight shutoff at 600 PSI. The two-piece valve features threaded ends for easy installation. Please refer to NIBCO technical data sheet, valve selection guides and catalog for engineering and installation information. Choose NIBCO® ball valves for the most specified, versatile and economical valve option in commercial, mechanical and industrial applications. NIBCO® ball valves are backed by the NIBCO INC. 5-year 125% limited warranty.