NOZZLES AND SYSTEMS FOR MORE INTELLIGENT SPRAY SOLUTIONS

Arrangement of flat fan nozzles with parabolic liquid distribution


Lechler flat fan nozzles provide a consistent, uniform coverage over the impact area. For this purpose, the spray widths B ought to overlap each other by 1/3 to 1/4. To avoid interferences of the sprays, the nozzle orifices must be offset 5°-15° to the pipe axis.


Alignment of tongue-type Nozzles


In order to achieve an even surface coverage the nozzles need to be aligned in such a way that spray widths B overlap by 1/3 to 1/4. Therefore the nozzles should be inclined in an angle of 15° to the vertical of the horizontal axis of the tube (either with a weld base at an angle or a Lechler ball joint nozzle mount) in order to prevent a disturbance of the spray.		  

Arrangement of full cone and hollow cone nozzles


For full cone and hollow cone nozzles, the distance E should be sized so that the spray cones overlap by about 1/3 to 1/4.

O = Overlap of spray angles
D = Spray diameter
E = Nozzle distance
H = Installation distance of nozzles
a = Spray angle		  


Square or offset arrangement of full cone or hollow cone nozzles