... seal or block off a pipe,like a cover or cap.We can provide a wide range of ... ~ DN2500 Pressure U.S. Series: CLASS 150, CLASS 300, CLASS 400, CLASS 600, CLASS 900, CLASS 1500, CLASS 2500 EU Series: PN 2.5, ... 160, PN 250, PN 320, PN 400 Flange sealing surface type U.S. Series: Flat (FF), suddenly face ... (RF), groove (G), convex surface (MFM), ring joint face (RJ)Packing:wooden cases or ...