Series F and L

Hy-Grade Series F and L Wafer swing check valves are designed explicitly for lugged end connections. The design features a high-performance, streamlined flow design with an unobstructed flow path, offering highly engineered material selection opportunities that can withstand high-pressure and high-temperature applications. This design differs from other check valves by incorporating an integrated flapper and pin, providing strength at a critical location. Typical swing check valve designs feature multiple components for the flapper assembly, including bushings, nuts, bolts, and hinge pins. These components wear out over time or come apart, leading to check valve failure.