Abstract: The low-pressure hoisting air cushion has an airtight chamber the walls of which (20) consist of a coated fabric which is elastic. Inserted into a hole (22) of the wall is a nozzle (24) of a valve. It consists of a tube socket accessible from the outside (26) and a ring-fastener (28) fitted internally. A compensation ring (34) is fitted between the ring-fastener (28) and the wall (20). It has a greater diameter than the ring-fastener (28) and is joined on one side to the ring-fastener (28) and to the wall on the other side (20) in such a way via a ring shaped joining area that there is created between both of them a circular shaped compensation zone (36) to which the compensation ring (34) is not attached on either side (FIG. 1).