api5000API flanges standard is American petroleum institute. API 6a6b6bx flanges dimensions are desned to handle hher rated pressure. We are an API 6a flanges manufacturer. Visit now!API6A (6BX) FLANGES Rating:- API 6BX-10000 PSI WP (With BX type Ring Gasket) Size OD T ØK PCD N Ød ØJ2 J3 BX 113⁄ 16 21⁄ 16 29⁄ 16 7.38 7.88 9.12 1.66 1.73 2.02