Download the PDF file:  API 6A STANDARD FLANGE DIMENSIONS TYPE 6BX 138.0 MPA 20000PSI Dimensions of Type 6BX flanges for 20000 psi (138 MPa) rated working pressure. Type 6BX flanges are of the ring joint type and designed with a raised face. Depending on the tolerances, the connection make-up bolting force may react on the