... , 900, 1500 and 2500 Pressure Ratings: PN 6, PN 10, PN16, PN25, PN40 and PN64 Pressure Ratings: JIS 5K, 10K, 16K ... ,600,900,150041/2”—64”BS4504, PN16, PN25, PN40, etc.plate, slip-on, welding neck, blind, threaded etc.Class150,300,600,900 ... ”—64”JIS 5K, 10K, 16K, 20K etc.plate, slip-on, blind etc.Class150,300,600,900,1500 Carbon Steel Blind Flange