... PN64 3.Carbon steel,Stainless steel Carbon Steel API Adapter Flange1), Name:Flange2), Sizes: 1/2"- 64",15mm ... requirement;8),Pressure Ratings: Class 150, 300, 600, 900, 1500 and 2500 Pressure Ratings: PN 6, PN ... blind, threaded, lap-joint, etc.Class150,300,600,900,150021/2”—64”EN 1092,etc…plate, slip-on ... , welding neck, blind, threaded etc.Class150,300,600,900,150041/2”—64”BS4504, PN16, PN25, PN40, etc ...