Flomatic Corporation introduces a new, special patent-pending submersible pump check valve for use with variable-frequency drive (VFD) control submersible pumps. Standard check valves will “chatter” and be noisy when a VFD goes to low flow, causing premature wear and eventual failure.  The unique Model 80DI VFD valve is designed to minimize flow losses and hydraulic shocks in the pumping system. It features a standard epoxy coating (NSF® approved powder) ductile iron body to support deep set pumps. All internal parts are made from corrosion-resistant materials and have a high strength durable design. For more information or to obtain a copy of the new 2014 condensed valve catalog, visitwww.flomatic.com, email flomatic@flomatic.com, or call 1-800-833-2040.