We offer ductile iron butterfly check valves featuring a robust ductile iron body and disc, complemented by a stainless steel 420 shaft for enhanced durability. Designed for a DN400 (16-inch) size with a PN10 pressure rating, the valve meets Class 150 LB standards. Equipped with EN 1092-2 PN10 flanged ends, it ensures easy installation and reliable performance in various applications.