The glass bulb is covered by the sprinkler plate, which is soldered to the sprinkler special upper support assembly in three places. The major advantage of this is that it works completely automatically, with no need for manual intervention. 68 Zst Pendent Fire Sprinkler Head Fire Sprinkler Sprinkler Fire Sprinkler System What is a concealed fire sprinkler? How do concealed fire sprinklers work . When there is a fire detected, the cover plate’s operating point will soon drop under the ceiling level. Used in places such as residences, hotels, hospitals, dormitories, shopping mall. A pipe, leading to the water source, releases a pressurized discharge as the trigger of the fire system opens the valve attached to the pipes. A sprinkler fire fighting system automatically detects and extinguishes fires inside an indoor space. Fire sprinkler types for special applications; The hot air is pushed toward the ceiling, walls, or other spots where the sprinkler heads are located. ...