|
Nozzles
The
nozzle performs four basic functions
-
Atomizes
liquid into droplets.
-
Disperses
the droplets in a specific pattern.
-
Meters
liquid at a certain flow rate.
-
Provides
hydraulic momentum.
|
|
|
 The Nozzle
Tip is one of the most important and least expensive part
of a spraying system.
Common
types of Hymatic Spray Nozzles:
Hollow
cone nozzles-Disc and core type
|
|
-
These
are used primarily where plant foliage penetration is
essential for effective insect and disease control,
and where drift is not a major consideration.
-
At
pressures of 40 - 8- psi hollow cone nozzles give
excellent spray coverage to the undersides of reduces
penetration correspondingly.
|
Flat fan
nozzles
|
|
-
These
are used largely for broadcast spraying, where foliar
penetration and coverage are not essential.
-
The best
operating pressure for flat fan nozzles is 15 - 30 psi,
which produce coarser droplets that are not
susceptible to drift.
|
Adjustable
nozzles
Double
swivel nozzles
Spray
boom
Spray
guns (Hy-Jet Gun)
-
Spray
guns consist of cut-of-value extension rod and nozzle
and can be trigger or hand-operated.
-
The
spray pattern is adjustable from solid jet to hollow
cone, and are most widely used for tall trees.
Selecting
a spray nozzle
-
The
proper selection and use of spray nozzle is the most
important part of spraying.
-
The
nozzle determines the amount of spray that is
generated over a given area, the uniformity of the
spray produced, the coverage obtained and the amount
of drift that occurs.
-
The
nozzle selected must optimize coverage application
rate and pressure and minimize loss through drift. For
each kind of application, depending on the physical
conditions prevailing, a different nozzle design is
available.
-
Nozzle
tips are available in brass, stainless steel, and
engineering plastic.
|
