Kennedy Swing Check Valves are designed to prevent backflow. The disc features generous tolerances to accommodate seat ring wear, while its spinning motion provides a regrinding effect, clearing debris from the seat ring. The disc is self-adjusting for optimal performance. Constructed with bronze-to-bronze moving parts, these valves reduce wear and corrosion. They are UL-listed by Underwriters’ Laboratories and FM-approved by Factory Mutual Fire Research Corp., with “UL” and “FM” markings on the body to indicate compliance.