As a trusted Ductile Iron Backwater Valve Supplier, we offer valves made from ASTM A536 Grade 65-45-12, ensuring superior strength and durability. These valves are designed to withstand a working pressure of 175 PSI and feature ASTM A888 connection ends for secure and reliable installations. With a temperature range from 0°C to 80°C, they are suitable for various water and wastewater applications.