| 摘要 |
PROBLEM TO BE SOLVED: To solve the problems that a sprinkler head connected to fire extinguishing piping of negative pressure type sprinkler fire extinguishing equipment for turning the inside of the fire extinguishing piping to a negative pressure has no means of confirming whether or not a prescribed negative pressure is maintained at the position, and that there is the risk of inviting loss of water when the sprinkler head malfunctions in the case where the negative pressure is not maintained at the position of the sprinkler head.SOLUTION: A sprinkler head-attaching tool for connecting fire extinguishing piping and a sprinkler head is interposed, the sprinkler head attaching tool is provided with a pressure detector for detecting the disappearance of a negative pressure inside the sprinkler head attaching tool and a display unit for displaying the disappearnace of the negative pressure, and whether or not the prescribed negative pressure is maintained at the sprinkler head position can be easily confirmed by vision. |
