Plate Flange Raised Face

Plate flange raised face is very often see in DIN EN1092-1 BS4504 and JIS B2220 KS B1503 flanges standards, also ANSI B16.5 Class 150 and 300 are most for ring plate raised face. EN1092-1 type 01 and type b1 for raised face plate flange, plate flange raised face for PLRF flange pressure for PN10 PN16 PN25 PN40