| 摘要 |
The invention relates to a sprinkler for a firefighting installation including a network of vacuum sprinklers, comprising: a fixing connector (1) that allows the sprinkler to be connected to pipework, having a nozzle (10); a fusible member (2); a shutoff member (3) for shutting off the nozzle (10), which shutoff member is held in the shut off position by the fusible member (2); characterized in that said fusible member (2) is kept bearing against the shutoff member (3) by a moveable bearing means capable of allowing the shutoff member (3) to leave its shutting-off position when the pressure in the nozzle (10) exceeds a predetermined pressure and in that it comprises means for ejecting the shutoff member (3), which means are mounted outside the nozzle (10) and act in a pulling sense on the shutoff member. |
