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 5.28The API Slip On Flange manufactured in our factory meets the requirements of various industries such as heavy engineering, automobile, railways as well as