| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a nozzle header capable of performing water ejection from all nozzles with reduced difference in discharge amounts while using inexpensive nozzles having the same diameter. <P>SOLUTION: In the nozzle header obtained by attaching a plurality of nozzles having the same diameter to a main tube at an interval in a longitudinal direction of the main tube, both ends of a branch tube connected to a water supply tube are connected to the main tube, the inner diameter of the main tube is larger than that of the branch tube so that a flow velocity and a pressure loss of the water are reduced, and the same numbers of the nozzle are attached to both sides of each connection position of the main tube to either end of the branch tube at equal intervals. <P>COPYRIGHT: (C)2012,JPO&INPIT |
