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Total Flooding System
A total flooding system means a supply of dry chemical permanently connected to
fixed piping, with fixed nozzles arranged to discharge dry chemical into an enclosed
space or enclosure about the hazard. This type of system shall be used only where
there is a permanent enclosure about the hazard that is adequate to enable the required
concentration to be built up.
The leakage of dry chemical from the protected space shall be minimized since the
effectiveness of the flooding system depends upon obtaining an extinguishing concentration
of dry chemical. In total flooding system, the rate of application shall be such
that the design concentration in all parts of the enclosure shall be obtained within
30 seconds.
Local Application System
Local application system shall be used for the extinguishment of fires in flammable
or combustible liquids, gases, and shallow solids such as paint deposits, where
the hazard is not enclosed or where the enclosure does not conform to the requirements
for total flooding. Application of dry chemical shall be from nozzles mounted on
the tank side or overhead.
Area Method: Applicable to superficial fire and the amount of extinguishing
agent depends upon the hazardous area.
Volume Method: Applicable to cubical fire and the amount of extinguishing
agent depends upon the volume of the object in danger.
The hazard shall include all areas that are or may become coated by combustible
or flammable liquids or shallow solid coatings, such as areas subject to spillage,
leakage, dripping, splashing, or condensation, and all associated materials or equipment
such as freshly coated stock, drainboards, hoods, ducts, etc., that might extend
fire outside or lead fire into the protected area.
FM-200 System (Gaseous fire suppression)
The FM-200 fire extinguishing unit uses FM-200, a new, environment-friendly gas.
This compact unit provides all functions, from fire detection and alerting through
to extinguishing. Reliable and safe, with simple installation and maintenance, this
unit can be used for a wide range of spaces.
Choose from the basic all-in-one A model, or the expanded B model which can be used
according to the space available.
The A model is the basic model: an all-in-one unit including extinguishing agent
container, starter, alarm, and controller. The B model is a separate type unit,
installed in combination with the A model, and can be adapted according to the size
and shape of the installation space.
Advantages-
- Safe and environmentally sound: FM-200, the new gas used in this unit, contains
no ozone-destroying substances. Also, with a density of between 7.7 and 9%, there
is no danger of oxygen deficiency when extinguishing fires.
- Quick fire extinguishing, limited damage to equipment: FM-200 is released a mere
10 seconds after the detection of fire, meaning that damage to equipment is kept
to a minimum. Also, because FM-200 is non-conductive, the effect on computers and
other electronic equipment is minimal.
- Effective use of limited space: All the necessary functions in a compact unit. Freely
and easily installed, the FM-200 suits any room, regardless of size and shape.
- Double check system: Sensors detect any double combination of either smoke, heat,
or flame, thus preventing false operation.
- Power protection: The FM-200 runs on AC power in normal circumstances, but in the
event of a power cut, automatically converts to the emergency power supply.
- Easy inspection: Daily inspection of the FM-200 is extremely simple.
Foam Fire Extinguishing System
Foam Fire Extinguishing System is divided broadly into two categories according
to the chemical involved, namely Air Foam Fire Extinguishing System and Chemical
Foam Fire Extinguishing system. Chemical Foam Fire Extinguishing System is considered
obsolete and has generally been replaced by Air Foam Fire Extinguishing System.
Being intended primarily for Flammable Liquids, Air Foam Fire Extinguishing System
is installed at agencies, producers and storage site of explosives and combustibles.
The system comprises Water Source, Fire Pump, Air Foam Concentrate, Proportioner,
Foam Maker, Foam Discharge Outlet Control Panel, Pipe, Electric Wire etc.
A variety of Foam Discharge Outlet is provided to meet any shape of Hazard, conditions
of location, etc. The system is divided into the following types.
- Air Foam Chamber
- Air Foam Nozzle
- Air Foam Spray Head
- Subsurface Foam Injection
- Air Foam-Water Monitor Nozzle
- High Expansion Foam Generators
Air Foam Concentrate is made into a fixed ratio of Air Foam Solution by mixing with
water flowing through Feed Pipe and is mechanically stirred by Foam Maker which
sucks air and generates great deal of Air Foam to extinguish a fire involving flammable
liquids with smothering and cooling effect.
Air Foam Concentrate makes fine foams with excellent stability and thermal resistance,
and freely flows and develops on liquid surface such as petroleum to promptly extinguish
a fire. It also sticks firm to a solid surface, level or vertical, to prevent the
fire from spreading.
Of the Fixed Air Foam Fire Extinguishing System, Air Foam Chamber and Subsurface
Foam Injection are intended mainly for extinguishing a fire set on Exterior Storage
Tanks, and Air Foam Spray Head for Flammable Liquid Hazards.
Air Foam Nozzle is used as Supplemental Air Foam Hydrant for Exterior Storage Tanks
or as Air Foam Hydrant for Flammable Liquid Hazard. Air Foam Monitor Nozzle is provided
near the inlet port of Exterior Storage Tanks and particularly on a quay or a pier
for extinguishing a fire set on oily outflow on the sea.
Water Mist
Water Mist is a versatile and highly efficient fire-fighting medium. What differentiates
Water Mist from traditional water based systems is its reduced droplet size. When
a droplet of water vaporizes, it expands by some 1,600 times. Because heat absorption
is a function of surface area and not volume, smaller droplets mean more surface
area and therefore faster heat absorption.
Water Mist has the unique ability to deliver water as a fine atomized mist. This
mist is quickly converted to steam that smothers the fire and prevents further oxygen
from reaching it. At the same time, the evaporation creates a significant cooling
effect of combustion gases and blocks the transfer of radiant heat. In this way,
Water Mist combines the fire suppression properties of both conventional water-based
deluge or sprinkler systems and gaseous fire suppression systems.
Utilizing the unique properties of Water Mist, we offer both a low and a high-pressure
version of Water Mist applications to provide your facility with the right solution
in the event of a fire.
Sprinkler System
Wet Pipe System
Wet pipe sprinkler systems are installed more often than all other types of fire
sprinkler systems. Wet pipe sprinkler systems also are the most reliable, because
they are simple, with the only operating components being the automatic sprinklers
and the automatic alarm check valve. They are attached to pipes containing pressurized
water at all times. Individual sprinklers in the vicinity of a fire are set off
by heat, allowing water to flow through them immediately.
Dry Pipe System
Dry-pipe sprinkler systems are attached to pipes that contain pressurized air. Water
is not present in the piping until the system operates. When heat activates the
sprinklers to open, the air pressure is reduced, allowing the dry pipe valve to
open and water to flow from the sprinkler. Dry-pipe systems are usually used in
spaces which the ambient temperature may be cold enough to freeze the water in a
wet pipe system
Pre-Action Sprinkler System
Pre-Action Sprinkler Systems contain an additional fire-detection device that will
recognize a fire before the sprinklers are activated. The sprinklers are attached
to a pipe containing pressurized air.
When the fire is detected by the fire alarm system, it opens the main valve, allowing
water to flow through the pipes before the sprinklers are set off. When the heat
activates the sprinklers, water flows through immediately, as in a wet- pipe system.
Pre-action systems are usually employed in areas that are at risk for serious water
damage due to damaged sprinkles, such as in museums with rare art works, manuscripts,
or books.
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