specialized manufacturer of cast iron/ductile iron gate valve, check valve, globe valve and Y strainer according to ANSI,BS,DIN 503-F Cast iron check valve, bronze trim,flange end1. Conform to MSS SP-712.Flange drilled to ANSIB16.1(125LB)3.Face to face confom to ANSI B16.10(125LB)4.Working pressure: 125S, 200WOG5.Suitable media: water, oil, gas6.Size:from DN50-DN400