| 摘要 |
PROBLEM TO BE SOLVED: To provide equipment in which there is less water pressure reduction due to tail water, because in initial fire extinction at the fire disaster occurrence time, tail water is effective, tail water is more effective as pressure is high, and pressure reduction during tail water is preferably, less, but generally, when a supply amount (water supply amount) becomes smaller to the tail water amount, pressure on a tail water port is reduced, tail water distance (distance of delivering water), and necessary for approaching fire occurs, and the number of deceased elder people due to fire disaster has increased, elder people tend to cause fire disaster due to carelessness, and it is difficult for elder people to perform fire extinction work quickly, and if fire extinction work can be performed while separated from fire, risk is reduced.SOLUTION: Provided is fire extinction piping which is drawn in a dwelling house from a water supply original pipe, in which, water supply piping equipment is coupled between a gate valve on an inlet and ball valve for tail water, with plural straight pipes 2, 3 and elbows 4, and distance between the gate valve and the ball valve, is 5 to 15 m. |
