Wafer swing check valves install between flanges and have a compact and lightweight profile. They're suitable for weight- and space-limited applications in chemical processing, HVAC, water distribution, and various other industries. They ensure media travels through a system in the intended direction and prevent backflow. Flowing media on the inlet side swing the disc away from the seat, opening the valve. When inlet pressure drops below outlet pressure, the disc will swing closed to prevent backflow and contamination. They're used in various industrial applications, such as wastewater treatment facilities.