Assured Automation has recently introduced its new FK and FE series of butterfly valves.The FK Series Polypro butterfly valve offers superior strength and chemical resistance in highly corrosive environments and is available in 1 1/2in to 12in line sizes with wafer or lug end connections. The FE Series PVC butterfly valve incorporates many of the features of the FK Series, but its all PVC construction makes it perfect for water and light industrial applications.