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FONTAN - Principle

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The Fontan cold fogging applicators Twinstar,
Turbostar and Compactstar are driven by electrical motors.

Maintenance-free, low pressure rotation pumps, which require no lubrication, produce an air flow at high velocity, which is further accelerated by a swirl vane in the nozzle module. The resulting Venturi effect produces a negative pressure, which draws the spraying liquid, via the suction hose, to the nozzle module, where the liquid is atomized into a fine aerosol fog.

Nebelanwendung im Gewächshaus Nebelanwendung im Gewächshaus The low pressure method makes it possible to use
spraying nozzles that have relatively large bores so
that even wettable powder spraying mixtures can
be applied without any problems.

Using the advanced design of the blower/stator system, the aerosol droplets are distributed up to a distance of 60 m per blower. Distribution is performed uniformly through horizontal and vertical air circulation.
Droplet distribution and range of the Fontan Twinstar,
2 x 60 x 40 m (4,800 m 2 ). Range of the Fontan Turbostar and the Fontan Compactstar, 60 x 40 m (2,400 m 2 ).
Much larger areas can be treated from a set position of the
applicators by means of additional blowers.



Tropfenverteilung und Reichweite 60 x 40 m (2.400 m Tropfenverteilung und Reichweite 2 x 60 x 40 m (4.800 m2).
Droplet distribution and range of the Fontan Twinstar, 2 x 60 x 40 m (4,800 m 2 ). Range of the Fontan Turbostar and the Fontan Compactstar, 60 x 40 m (2,400 m 2 ). Much larger areas can be treated from a set position of the
applicators by means of additional blowers.

Typische Tropfenverteilungen Typische Tropfenverteilungen



Typical droplet distribution generated by Fontan
Compactstar, Turbostar and Twinstar applicators
using various nozzles (measurements with water).














Ventilator mit Stator

Sprühbild Compactstar, Turbostar, Twinstar
Blower and stator system
The stator directs the air flow,
without turbulence, and guarantees
droplet transportation up to a
distance of 60 m.
The power of the blower and
the design of the stator provide
a uniform coverage, even for
large areas and rooms

Fog produced by
Fontan Turbostar, Twinstar
and Compactstar
Variation coefficienc Variation coefficienc

Our design of the blower/stator system guarantees an extremely even coverage of the complete treatment area. The graph shows the result of a treatment having a variation coefficient of only 11.3 % between the highest and the lowest coverage.



Nebelanwendung im Gewächshaus Nebelanwendung im Gewächshaus

Bedien- und Programmiereinheit
Operating and programming panel
of the Fontan Turbostar and Twinstar with fully automatic programming functions:


• Timer for the preselection of the starting time.
• Permanent agitation of the fogging mixture to maintain
100 m a stable suspension of the active substance in the chemical tank.
It is possible to switch off this function.

• Permanent air circulation generated by the blower(s) for the transportation and optimized distribution of the fog droplets with programmable pre and post
blower running time.

• The fogging time is directly related to the volume of liquid to be sprayed, i.e. the applicator operates for as long as it is necessary to fog the pre-set volume of spraying liquid, dependent on its viscosity.

• After fogging, the feed lines and nozzles are cleaned by a flushing process.
The flushing time is adjustable.

• Automatic shutdown on completion of the entire process


All functions can also be manually activated.



Typische Tropfenverteilungen FONTAN Starlet Typische Tropfenverteilungen

Typical droplet distribution generated by the Fontan Starlet with dosage nozzles 74 and 100 in the spraying modes ULV (Ultra Low Volume) and LV (Low Volume).



Sprühpistole Fontan Starlet Sprühpistole Fontan Starlet

The spray gun of the Fontan Starlet has a trigger for
intermittent fogging and a locking device for continuous
operation. The Fontan Starlet can be operated in either ULV application mode with a flow rate between 0.8 and 10.8 l/h or in LV mode with a flow rate between 1.8 and 50 l/h, dependent on the nozzle size selected.