Powell Valves manufactures industrial check valves in various configurations and materials. Check valves are used to ensure that gases and liquids are flowing in one direction only. They essentially prevent the process flow from reverting, which forces the valve to close. Check valves are needed to stop backflow and protect rotating equipment and mechanical devices from the sudden backflow surges that may occur. Trust Powell Valves to provide you with a high-quality check valve for all your backflow prevention needs.