WATER SPRAY NOZZLE

摘要

A water spray nozzle (1) has a body (4) on the upper end of which an inner peripheral flange (3) is provided and a core (8) that is installed in the body (4) and whose outer peripheral edge section (7a) of an upper end face (7) is made to be in contact with a lower face (3b) of the inner peripheral flange (3). Grooves (9) for nozzle holes are provided in the outer peripheral edge section (7a) of the core (8), and the grooves (9) are formed at predetermined intervals in the circumferential direction from the outer peripheral side of the core to an opening on the inner peripheral side. Nozzle holes (10) formed by the lower face (3b) of the inner peripheral flange (3) and the grooves (9) are each set such that, in a side view, a line (S) extended from the axis of a flow path is inclined with the opening (10b) side directed upward at a predetermined elevation angle (theta1) relative to the upper face of the body (4), and that, in a plan view, the line (S) passes a position separated from the center of the core (8) and lines (S) of adjacent flow paths intersect each other at a predetermined intersection angle (theta2).