Steel Plate EN1092-1 Type01 Flange

　　EN1092-1 (PN) contains a nominal pressure for PN2.5, PN6, PN10, PN16, PN25, PN40 and PN100 seven gears, nominal size is DN10 ~ DN4000.Flange structure is loose tube plate flat welding, butt welding ring, flat welding ring loose tube, flanging loose tube, wonderful butt welding, overall, a total of eight kinds of thread and flange cover.Seal type has a full plane, surface, concave/convex, tenon groove surface and o-ring groove.Used with inch pipe series steel pipe.

　　The Steel Plate EN1092-1 Type01 Flange on international standard, there are two main system a is a delegate with eu EN Europe pipe flange standard system (nominal pressure using PN);Another American pipe flange is a delegate with the ASME standard system (nominal pressure using the class).

　　Europe and America tube flange pipe flange standard system standard system is two different and not interchangeable tube flange standard system, in addition, Japan JIS flange (nominal pressure using K said) standard system, but not in the China petrochemical plant is multi-purpose, or only used for public pipeline engineering.

　　European system flange standard flange and the American system is inch pipe as the object, but nominal pressure level is different, overlapping also have repeat, connection size is completely different, therefore, cannot match each other.If the pressure level to differentiate, PN series for PN2.5, PN6, PN10, PN16, PN25, PN40, PN63, PN100, PN160, PN250, PN320, PN400;Class series of class150 (called PN20), class300 (also called PN50), class400 (called PN68), class600 (called PN110), class900 (called PN150), class1500 (also called PN260) and class2500 (also called PN420).