api 5000Pressure 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 5.28API 6A - TYPE - 6B 34.5 MPA (5000 PSI). Size. B. OD. C. (MAX.) K. P. E. T. Q. X. BC. N. H 2) RING GASKET ACCORDING TO API 6A