Schroedahl, a Circor International brand and an international leader in pump protection and flow control technology, announces that new, self-modulating TDL Automatic Recirculation Valves (ARVs) are now available in more than 35 percent lighter cast material. These reliable all-in-one pump protection solutions are designed to keep pumping systems in process, firefighting, refinery, power, and chemical applications modulating and running smoothly, without cavitation or overheating. Additionally, the bypass check valve prevents reverse pump flow, and allows for parallel pump installations. With extremely low valve hysteresis, TDL ARVs promote increased and reliable pump performance. For more information, visit  www.circor.com/products/valves/pump-protection.