At Cair Euromatic Automation Pvt. Ltd., we are a trusted Cast Iron Non Return Valve Manufacturer in India, specializing in the manufacturing, supply, and export of high-quality Cast Iron (CI) and Ductile Iron (DI) Non Return Valves. Our valves are designed for water supply systems, pumping stations, irrigation projects, water treatment plants, municipal infrastructure, and industrial pipelines. A Non Return Valve (NRV) is an automatic valve that allows fluid to flow in one direction only. When the flow stops or reverse pressure develops, the valve automatically closes to prevent reverse flow (backflow). This protects pumps, pipelines, motors, and other equipment from damage while maintaining smooth, safe, and efficient system operation. Since the valve works automatically, no manual operation is required. Non Return Valve – IS 5312-2 Specification Details Size 1" to 28" Body Material (MOC) Cast Iron (CI), Ductile Iron (DI) Trim 13 Cr / 18 Cr Pressure Rating PN10, PN16 Temperature -20°C to 180°C* End Connection Double Flanged Standard IS 5312-2 *Temperature depends on the selected material of construction. Our Cast Iron and Ductile Iron Non Return Valves are manufactured using quality materials, precision engineering, and strict quality control to deliver reliable one-way flow control and automatic backflow prevention. Every valve is tested to ensure dependable performance, long service life, and low maintenance, making it a reliable choice for water and industrial applications across India and export markets.