Flomatic expands its American Iron and Steel-compliant model 80DIVFD submersible pump check valve in a new 10” size. The check valve is available in an extended size range from 1” through 10” for use with variable-frequency drive control submersible pumps or conventional systems. The 80DIVFD valve is designed to minimize flow losses and hydraulic shocks in the submersible pumping system. It features a standard epoxy-coated (ANSI/NSF 61-approved powder) ductile-iron body to support deep-set pumps. An exclusive patented stainless steel-guided poppet system ensures the valve automatically adjusts noiselessly from high to very low flow rates.