FCV Flex Check Valve Home » Products » FCV Flex Check Valve The BEECO Flex Check Valve is designed to mitigate disc slam. Since the disc only has to travel approximately 35 degrees from a full open position to a fully closed position, the disc will close before flow reversal occurs in most applications. Specification Sheet Catalog Catalog List Pricing Current Catalog: BEECO-2019 Technical Technical Reference Codes BEECO Backflow Cross Reference Chart: 2020 BEECO Repair Kit Cross Refernce BEECO Abbreviations Guide BEECO/Watts Reference Codes Return to Products