api 5000API 6A TYPE 6B 5000 PSI Blind pipe flanges are used to seal the end of a piping system or pressure vessel openings to prevent flow.API 6A TYPE 6B 5000 PSI Blind flanges are mainly used for pressure testing the flow of liquid orOur ASTM A105N flange, with a size of 2-116 inches, adheres to API 6A and TYPE API 6B standards. It boasts a sturdy API 5000 PSI rating, SCH XXS thickness, and an RTJ