Breathing apparatus, in particular of the open circuit type

摘要

The system has a connector with an air intake pipe (19) projecting towards outside, on which a sleeve (20) is mounted and removable in axial translation. The sleeve has an outside threaded zone (21) situated at a side of free end of the pipe and destined to cooperate with a housing of a valve of a bottle. The sleeve has a zone (23) destined to be mounted in a case (24). The sleeve forming screw is blocked in rotation in the case and free in translation opposite to the case. The case is mounted on the connector around an axis of the pipe and blocked in translation opposite to the pipe.