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Clean Agent Fire Suppression System
SYSTEMA STANDARD FIRE SUPPRESSION SYSTEM IN THE NEWAGE, THE AGENT OF WHICH IS THE SAME WITH ONE OFNATURAL RESOURCES.Today, the global environmental protection becomes one of the most serious issues for human beings tosurvive. Fire suppression systems are also in the new stage where it must meet requirements given fromthe point of view of the global environmental protection and safety for human beings.
We, as a manufacturer of fire suppression systems, have paid thorough effort to give a shape to an idealfire extinguishing system which must give no adverse affect to the natural environment and have theaffirmative capability of fire extinguishing. As a result, we have successfully developed the systemby employing nitrogen gas as an agent which has place 78% in the air. The system has thecapability for both environmental protection and fire extinguishing which is required for fire protectionsystems in the new stage.
Furthermore, the system has been provided with a high level of safety to human beings, a high cost-performance and no influence to valuable equipment and property, in accordance with our developmentconcept. The system will be a 'standard' fire suppression system in future since the system isfriendly to both human beings and our planet.
FEATURES
Zero ODP and zero GWPThe NN100 system has zero ozone depletion potential and zero global warming potential, since itemploys nitrogen gas, 78% of the air, as the fire extinguishing agent.
No toxicity to human beingsThe NN100 system employs no carbon dioxide and no Halocarbon. There is no possibility to producehydrofluorine, a toxic gas, even in contact with heat or flame.
Low cost to refillThe NN100 system needs neither synthetic nor blended gas as a fire extinguishing agent. It needsonly nitrogen gas commonly available for industrial use and it has no technical difficulties to refill.
Pressure adjustable for existing piping classesThe capability of pressure control on the discharge side of NN100 system storage vessels may allowthe NN100 system to replace existing Halon systems in many applications without replacing existingpiping and related equipment. This system has been patented in the US.
Clear view to exitsThe discharge of nitrogen gas does not cause any trouble in visibility necessary for occupants toaccess to exits, since no condensation of humid in the air takes place on the discharge of agent.
No damage to propertiesThe NN100 system can be used to protect rooms containing precision instruments or fine arts,since there happens no vaporization of agent by discharging, which may cause condensation ofhumid in the air.
Centralized cylinder station allowedThe NN100 high pressure system can be designed to cover multiple zones with a single cylinder-station having a volume of agent required for the largest zone.
Packaged type available
INTERNATIONAL RECOGNITIONUnderwriters Laboratories Inc (UL)National Fire Protection Association (NFPA)Environment Protection Agency (EPA)Fire Protection Equipment and Safety Center of Japan (FESC)
FRIENDLY TO NOT ONLY HUMAN BEINGS ANDTHE EARTH, BUT ALSO PROPERTIES.
Selectorvalve
Notificationappliance
Discharge nozzle
Zone-1
To Zone-2
Cautionplate
Dischargeindicator
Control panel
Power supplyEmergency stop
Cylindervalvesolenoid
Pilot cylinder
Cylinder valve
Safety ventPressureswitch
N2 cylinder
Actuatingcylinder
Damper
Air duct Fire detectorPressurerelief device
Control box
Pneumatic releaser
Reset valve box
Larger cylinder station requiredSince nitrogen gas is filled in the form of vapor like other inert gases, the cylinder station for NN100 systemshould be larger than that for Halocarbon systems.
Pressure relief device neededThe excessive pressure in the room protected caused by the discharge of the agent must be released toprevent the room from incurring damage.
SystemConfiguration
●MANUAL OPERATION ●AUTOMATIC OPERATION
Fire
Open the control box.
Press the discharge switch.Ventilation blocked.
Alarm for evacuation.
Discharge indicatorflickered.
Press the abort switchto cancel. Time delay
Cylinder valve solenoid actuated.
The pilot cylinder opened.
N2 cylinders opened.
N2 gas discharged.
Fire suppression. Fire suppression.
Smoke detection Heat detection
AND gate
Fire alarm
Discharge indicatorflickered.
Ventilation blocked.
Alarm for evacuation.
Time delay
Cylinder valve solenoid actuated.
The pilot cylinder opened.
N2 cylinders opened.
N2 gas discharged.
OperationFlow Chart
Note : System configuration and Operation flow chart might differ according to the standard you apply.Japanese standard is applied to above two diagrams.
Is there any physiological effect to humans?When nitrogen gas of the NN100 system is discharged to put outa fire, the concentration of nitrogen gas and oxygen gas in the roomwill change to about 87% (normally 78%) and 12.5% (normally 21%)by volume respectively. The Chemicals Inspection and TestingInstitute (CITI, a Japanese foundation) has tested on safety ofhuman beings under such ambient conditions and reported thatthere will happen no physiological influence to humans whileevacuating.The Environmental Protection Agency (EPA, USA) proposes thatan IG-100 system could be designed to an oxygen level of 10% ifoccupants can egress the area within one minute, but may be
designed only to the 12% level if it takes longer than one minuteto egress the area, while the design concentration of oxygen for theNN100 system is 12.5%.
Why is a fire extinguished with nitrogen?Continuous combustion requires more than 15% of oxygenconcentration by volume. The NN100 system will suppress afire by reducing the oxygen concentration down to 12.5% withnitrogen gas discharged.
ApplicationsThe NN100 fire suppression system is suitable for applications for computerrooms, occupied signal transmission machine rooms such as fire protectioncenters, and art museums and national museums which occupied by manystrangers.
Computer room
Control room
Museum
A NEW FIRE SUPPRESSION SYSTEMMOST SUITABLE FOR THE NEW AGE.
0
200
400
600
800
1000
0
5
10
15
20
25
0 60 120 180 240 300 360
60 sec.
Fire suppressionFire temperature
Oxygen concentrationin the room
Time (sec.)
Start of discharge End of discharge
Fir
e te
mp
erat
ure
(℃
)
Oxy
gen
co
nce
ntr
atio
n (
%)
The result of fire testsOxygen concentration
21%Oxygen concentration
12.5%
Reports issued by CITI
Safety test
●These instructions do not purport to cover all the details or variations in the equipment described, nor provide for every possible contingency to be
met in connection with installation, operation and maintenance.
●Specifications are subject to change without notice. Contact Koatsu before relying on above specifications.
●Actual performance is based on proper application of the product by a qualified professional.
●Should further information be desired or should particular problems arise, which are not covered sufficiently for the purchaser's purposes, the
matter should be referred to Koatsu or a distributor in your region.
Halon 1301
Halon 1301
Special for fire protection
5.0
0.33 kg/ m3
5.2
Liquid
5.2
Sch.40
10
10
5600
Yes (Note1)
Yes
NN100
100% nitrogen
Industrial use
40.3
0.52 m3/ m3
30
Vapor
10.8
Sch.80
60
0
0
No
No
CO2
100% CO2
Industrial use
34.0
0.8 kg/ m3 (Note 2)
10.8
Liquid
10.8
Sch.80
60
0
1
Yes
Yes
System name
Agent
Agent supplyDesign concentration
(Vol %)
Agent quantity required
Cylinder pressure(MPa, at 40℃)
Form of agent in storage
Secondary pressure(MPa, at 40℃)
Piping class
Discharge time(sec.)
Ozone depletion potential
Global warming potential
Toxicity
Visual difficulties caused by the discharge of agent
Note 1: Hydrogen fluoride (HF) can be contained in the decomposition products generated by breaking down of the agent in
contact with heat or flame.
Note 2: Volume factor is dependent on the volume of the space.
A.99.10.1500.DC.M.
Comparison
HEAD OFFICE 1-310 KITAHONMACHI, ITAMI, HYOGO PREF. 664-0836, JAPAN T E L. 81-72-782-8561 �� F A X. 81-72-782-8511
HOMEPAGE ADDRESS http://www.koatsu.co.jp