Sprinkler comprising a shutoff member held in position by a fusible member with the aid of a moveable bearing means

摘要

A sprinkler is provided for a firefighting installation including a network of vacuum sprinklers. The sprinkler includes: a fixing connector, which allows the sprinkler to be connected to pipe work and has a nozzle; a fusible member; and a shutoff member for shutting off the nozzle, held in shutoff position by the fusible member. The fusible member is kept bearing against the shutoff member by a moveable bearing, capable of allowing the shutoff member to leave its shutting-off position when the pressure in the nozzle exceeds a predetermined pressure. An ejecting element for ejecting the shutoff member is mounted outside the nozzle and acts in a pulling sense on the shutoff member.

主权项

1. A sprinkler for a firefighting installation including a network of vacuum sprinklers, comprising:
a fixing connector, that allows the sprinkler to be connected to pipework, having a nozzle; a fusible member; a shutoff member for shutting off the nozzle, held in shutoff position by the fusible member; a moveable bearing, which keeps said fusible member bearing against the shutoff member, and which is capable of allowing the shutoff member to leave its shutting-off position when pressure in the nozzle exceeds a predetermined pressure; and an ejecting element, which ejects the shutoff member mounted outside the nozzle and acts in a pulling sense on the shutoff member.