api5000API 6A - TYPE - 6B 34.5 MPA (5000 PSI) Size B OD C (MAX.) K P E T Q X BC N H LN HL JL Ring Number R or RX 2 116˝ 53.2 215 3 124 95.25 7.9 46.1 38.1 104.8 165.1 8 26 109.5 60.3API 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!