Readjusting device for a safety valve

摘要

The pipe comprises two sections screwed together and retained via retainers which allow displacement of one section with respect to the other. The sections can move from a reset state in which a stop cannot inhibit fluid passing from upstream to downstream, to another state in which the stop can either prevent or allow fluid flow. The stop comprises a stopper (8) on a seat (7). A separator is downstream of the stop and the seat for enabling the reset position. The separator extends only outside the axis of the section in which it is situated. The separator may comprise an element (6) placed such that the seat can be deformed or displaced in the reset state.