A part of a cross-section of a pressure vessel with conventional raised face
BFC is shown in Fig. 1. The pressure vessel has a blind cover 1 and base 2 with flange
rings 3 and 4 connected with bolts 5 and nuts 6 elastic gasket 7 being placed between
adjacent flange surfaces.
The blind cover 1 is a simple supported and symmetrically loaded circular plate
subjected to circularly distributed bolt preload forces F0 (Fig. 1b), and then to internal
pressure p along with operating temperature T (Figs. 1a and 1c).