Abstract: Spray nozzle permitting the spraying of liquid, having a body provided with a cylindrical chamber of given diameter for the passage of a liquid into a nozzle in which the nozzle liquid outlet has a plurality of equidistantly spaced, identical holes, whose axes are inclined relative to the nozzle axis. A member positioned at the intake of the liquid into the nozzle defines a passage for the liquid outflow, and has a diameter less than the diameter of the chamber. The member has a concave face at the inlet and a constriction of the passage limits the liquid flow entering the nozzle. Fixing means permit the member to be fixed to the nozzle body.