Description
2-7
Part 237478_03
E 2012 Nordson Corporation
Selecting Swirl Spray Nozzles
There are two basic swirl spray nozzle types: the spray disk nozzle and the
spray cap nozzle.
Spray disk nozzles have two parts: a disk and a retaining nut. The disk
contains the orifices for both the fiberizing air and the adhesive and is
secured to the module by the retaining nut. The spray cap nozzle has the
disk and retaining nut as a single piece. Spray cap nozzles have a small
o‐ring that serves as a seal between the air section and the adhesive section
of the nozzle.
Both nozzle options provide particular advantages. The spray cap nozzle
provides easy cleaning, but the part of the nozzle containing the orifices is
not recessed as with the spray disk nozzles. The spray disk's recessed
nozzle tip provides protection from tool damage and dropping the nozzle.
Swirl spray nozzles are typically constructed of brass, produce clockwise
spray rotation and can produce pattern widths from 0.5 inches to 6.0 inch.
Nozzles are available in various orifice sizes. A list of available spray nozzles
is in Section 7, Parts.
Wide pattern swirl nozzles are available in the following sizes: 0.020 in.,
0.030 in., and 0.046 in. The pattern capabilities meet most product assembly
applications for density, coverage, and edge control. These are
recommended for all but the most precise (<1.0 in. width) applications.
Special application nozzles are available. Contact your Nordson
representative for additional information.