Check valves: swing check valves
Exotica Valves™ manufactures a unique line of check valves: Exotica CXK™. Check valves have a simple design, and in general cannot be manually operated. They are meant to prevent backflow, and come in swing, ball, piston, screw-down and dual-plate configurations. Among these, the swing check valve is the most widely used, in which the disc swings and closes against the seat in to prevent backflow.