api 5000Learn about API flanges, which are flanges manufactured following the guides specified in API 6A specification. Find out the pressure ratings, types, dimensions…Pressure Rating:- API 6BX-2000 PSI WP (With BX type Ring Gasket) Nominal Size B Flange Thickness T Hub Diameter J1 Groove Depth E Added Hub Thickness J4 263⁄ 4 30 4.97 5.28