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Introduction
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TUNGUS
is a new generation of impulse ( very fast
acting ) dry powder modules for automatic fire
suppression systems.
TUNGUS modules are non pressurized
vessels that can be fitted in any application.
They are light weight and easy to install and
transport, with no pipe work required, and in
normal applications are maintenance free for 10
years.
TUNGUS modules are the most cost
effective powder-type automatic fire
extinguisher available on the market. TUNGUS
modules are hermetically sealed thus preventing
any contamination, by dust or water for the
ISTO-1 extinguishing dry powder contained inside
the unit.
TUNGUS modules are activated electrically
from a conventional fire panel, from thermal or
optical sensors or even manually when it is
attached to the modules.
When activated during a fire situation, there is
a chemical reaction within the Cold Gas
Generator, transforming the solid chemical into
Cold Gas, which creates a positive pressure
inside the module.
The discharge diaphragm then expands, ruptures
and a powerful fire-extinguishing powder jet is
ejected into the fire zone putting out the fire
rapidly and effectively in less than 1 second.
The dry powder expelled from the TUNGUS module
attacks the fire in a combination of two fire
extinguishing mechanisms.
Chemically :
By removing the fire propagating "chain
carriers"
Physically : ( via four processes ).
1- By removing heat via endothermic processes of
powder particle heat absorption, particle
evaporation and decomposition.
2- Via the dilution of the flame zone with a
powder cloud and its subsequent decomposition
products.
3- There is a creation of physical fire barriers
in the fire zone.
4- Via the creation of a "fire blanket" on the
surface of the burning materials. |
Physical reaction
within the canister
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Principles of
extinguishing action
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Stage 1
Fire consists of four elements
oxygen, flame chain carriers, heat
and fuel
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Stage 2
The ISTO - 1 Dry Powder is
introduced to the fire and attacks all four
elements
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Stage 3
The ISTO-1 Dry Powder particles attach
themselves to O, H & OH radicals and remove them
from the flame chain without depleting Oxygen.
The ISTO-1 Dry Powder also makes a blanket over
the fuel
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Product Details
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High extinguishing performance |
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Operating
within 4 to 8 seconds after detection of fire
Powder delivery in less than 1 second after
operation
Instantaneous extinguishment of fire
Protect surface areas up to 80 m2, volumes up to
240 m3 and can be fixed at a height up to 16 mt |
Safety |
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No toxic
ingredients
No ozone depletion
No pressure cylinders |
Versatility |
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Used for Class A, B, C,
E fires ( involving electrical energized
equipment )
Can be used for total flooding & local
applications
Can be installed in almost any industrial or
residential
risk area
Wide temperature operating range ( -60 to + 90 C
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The TUNGUS modules are rechargeable |
Cost savings |
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High extinguishing
efficiency
Low powder consumption
Simple installation
Minimal maintenance |
Maintenance |
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10 years Standard
lifetime.
Modules do not require special maintenance.
Monthly visual observation for parts damage.
Supervision of the electrical circuitry
integrity for electrically operated modules.
Following system discharge the area should be
cleaned by a non-wet method of dry-wiping,
brushing off or vacuuming |
Health & Safety |
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TUNGUS modules are
non-pressurized - non explosive if heated and it
is not leaking.
TUNGUS modules use ISTO-1 powder ( Mono Ammonium
Phosphate based ).
ISTO-1 Powder is non-abrasive, chemically inert,
non aggressive and non-toxic.
ISTO-1 Powder is environmentally friendly,
discharged
powder residue could be added to the industrial
organic
fertilizers.
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