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FONTAN - Application

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FONTAN Portastar - application FONTAN Portastar - application FONTAN Portastar FONTAN Portastar

Public health vector control application  with

FONTAN Portastar

The Fontan Portastar knapsack is specially designed
for use in ULV applications.


FONTAN Mobilstar - large area treatment FONTAN Mobilstar - large area treatment FONTAN Portastar - droplet spectrum FONTAN Portastar - droplet spectrum

Example of a large area treatment
using the Fontan Mobilstar taking into account the wind
direction and swath width.

Fontan Portastar
Typical droplet distribution. The VMD (Volume
Median Diameter) with every dosage nozzle used
is < 30 μm.

Wind Force Description Observations Wind Speed Effective Swath Width / in metres*
m/s km/h ULV ULV-Plus LV
0   smoke rises
verticaly
0,0 - 0,2 0,0 - 0,7 25 - 50 20 - 40 15 -30
1

light

whiff

observable
drift of
smoke
0,3 - 1,5 1,1 - 5,4 35 - 70 25 - 50 20 - 40
2 light breeze rustle of leaves 1,6 - 3,3 5,8- 11,9 50 - 100 35 - 70 25 - 50
3

soft

breeze

leaves and twigs are moving constantly 3,4 - 5,4 12,2 - 19,4 75 - 150 50 - 100 30 - 60
4

moderate

breeze

movement of

small branches,

whirl of dust

and paper

5,5 - 7,9 19,8 - 28,4

Application possible

with certain reservations

(e.g. larger droplets

with a reduced droplet

drift range)

* Effective swath width = total swath width ./. overlap (approx. 30%).
The given effective swath widths refer to an open area.
For obstacles such as dense vegetation or buildings these values are to be reduced by up to 50%.


Fontan Mobilstar
Effective swath widths in the ULV, ULV-Plus and LV modes,

dependent on differing wind speeds according to the Beaufort scale

Fontan Mobilstar
Typical droplet distribution using the modes ULV (Ultra

Low Volume) as well as ULV-Plus, providing a slightly wider

droplet spectrum for an application under difficult wind

conditions, and LV (Low Volume)