PRESSURE BULKHEAD SYSTEM

A pressure bulkhead system (10) comprises a pressure bulkhead (1) which is adapted to be connected to a fuselage (2) of a vehicle order to separate a pressurized cabin space (12) of the vehicle from an unpressurized cabin space (14) of the vehicle, and a peripheral pressure frame (3) for sealingly connecting the pressure bulkhead (1) to the fuselage (2) of the vehicle. The peripheral pressure frame (3) comprises an attachment section (31) which is sealingly attached to an outer rim portion of a first surface (18) of the pressure bulkhead (1), wherein the first surface (18), when the pressure bulkhead system (10) is installed in the vehicle, faces the unpressurized cabin space (14) of the vehicle, a flange section (33) which is adapted to be sealingly attached to an inner surface of the vehicle fuselage (2) and which extends in a direction facing away from the first surface (18) of the pressure bulkhead (1), and a flexible section (34, 32, 35; 39) which interconnects the attachment section (31) and the flange section (33) and which is flexible to accommodate cabin pressure acting on the pressure bulkhead (1).