| 摘要 |
A dry visor intended to be mounted in a fireprotection installation, comprising a network of vacuum sprinklers, the visor comprising an elongate body (5) having, at one of its ends, a connecting piece (50) for coupling to piping, including a first nozzle (51) capable of making the connection between the visor and the piping, the visor including means (60) for shutting off the first nozzle (51), the other end bearing a sprinkler, characterized in that it comprises means of connection (6) between the shutoff means (60) that shut off the first nozzle (51) and the shutoff member (3) that shuts off the nozzle (10) of the sprinkler, said means of connection (6) being able to move in such a way as to cause the shutting-off position of the shutoff member (3) to coincide with the shutting-off position of the shutoff means (60) that shut off the first nozzle (51). |
