The DUO CHECK VALVE in cast iron with spring return is engineered for superior performance in industrial fluid control systems. Designed to DIN standards and rated at PN 16, this valve ensures reliable backflow prevention, protecting pipelines and equipment from reverse flow damage. Its robust construction and spring-assisted closure provide immediate sealing, minimizing pressure loss and enhancing system efficiency in applications such as water supply, HVAC, and chemical processing.Key features include:Durable cast iron body for high corrosion resistance and longevitySpring return mechanism for fast, automatic closure and leak-tight sealingCompliance with DIN standards for interoperability and safetyPN 16 pressure rating, suitable for medium-pressure systems up to 16 barCompact design for easy installation in confined spacesIdeal for use in commercial and industrial settings, this valve is trusted for its reliability and low maintenance requirements. It is commonly installed in water treatment plants, irrigation systems, and industrial machinery where consistent unidirectional flow is critical. The valve’s design minimizes water hammer effects and ensures operational stability under varying pressure conditions.