14
Operation
Spray Nozzles
The spray nozzles have an outlet at each end but
only the jet that is flipped to the outward facing
position is “on”. This facilitates easy changing
between jets of different sizes, for example, when
requiring different application rates to suit
concentrated and diluted spraying.
Individual nozzles can be turned off when not
needed by flipping the nozzle 90 degrees so that
neither of its jets is facing outwards. Nozzle
direction can be adjusted by loosening the
attaching nut and angling the nozzle.
The nozzles include a non-drip valve, which
closes when the pressure drops below 1 Bar.
Standard Jets
Standard nozzles feature ceramic jets, stainless
steel swirl plates and stainless steel mesh
strainers, separated by neoprene gaskets, as
shown in the component diagram opposite.
Nozzle output at a particular pressure can be
varied by fitting different jet and swirl plate
combinations, refer to the Single Nozzle Output
Chart on page 17.
Ceramic jets are sized according to the diameter
of the central hole in millimetres.
The purpose of the swirl plate is to create a
conical spray pattern. They either have a closed
centre, identified as CC, or a central hole which is
sized in millimetres. Closed centre swirl plates are
fitted for low outputs. At higher outputs, swirl
plates with a central hole are needed to fill the
centre of the conical spray pattern and when fitted
they should be one size smaller than the ceramic
jet.
Ceramic jets and swirl plates normally have a long
wear life and require little maintenance other than
regular checking and cleaning of strainers. The
spray pattern should be observed periodically
against a dark background to detect signs of wear
that will be indicated by a streaky or broken
pattern. If worn jets are detected then the full set
of jets, swirl plates and gaskets should be
replaced.
HCC Hollow Cone Ceramic Jets
HCC hollow cone ceramic jets produce superior
misting and are fitted to one side of each nozzle
in the optional Double Sided Full Row Vineyard
Conveyor, refer Optional Equipment section.
The HCC components fit the standard nozzle
body and use the standard nozzle cap as shown
in the above diagram. The stainless steel mesh
strainers are not used with HCC jets as the base
of the jet needs to sit down into the brass nozzle
body.
Nozzle output can be varied by fitting different
size ceramic jets. Refer to the HCC Jet Chart on
page 17.
They can be used in various combinations with
the standard jets, which are fitted to the opposite
end of each flipover nozzle body.
Nozzle Cap
Nozzle Body
Swirl Plate
Jet
Standard Nozzle Components
Strainer
Swirl Plate
Jet
Gasket
HCC Nozzle Components
NOZZLE COMPONENTS
Gaskets
SPRAY NOZZLE
ON POSITION
OFF POSITION
Non-drip Valve
