FIRE FIGHTING NOTES PART 02 BY ER. EZAZUL HAQUE SIDDIQUE .PPT

FIRE FIGHTING
PART 02
BY- Er. Ezazul Haque Siddique
ezazsidd@outlook.com

CONTENTS
AUTOMATIC FIRE FIGHTING SYSTEM -
WATER SPRINKLER SYSTEM
WATER MIST SYSTEM
FOAM SYSTEM
GAS SUPPRESSION SYSTEM

SPRINKLER DESIGN
 Two functions to perform i.e
first detect a fire and then
provide an adequate
distribution of water to
control and extinguish the
fire.
 Hence an early detection
and adequate discharge of
water at required pressure
over the affected area are
the main criteria for design
of sprinklers.

HOW THE RULES ARE MADE
* DESIGN OF SPRINKLER
* TYPE OF COMBUSTIBLE
MATERIAL
* DESIGN OF BUILDING
WHERE THE SYSTEM IS
INSTALLED
* LAYOUT -- SPRINKLER
INSTALLATION PIPING
ARRAY
* SYSTEM FLOW AND
PRESSURE
REQUIREMENTS

Sprinklers for general application are manufactured with three different
orifice sizes of 10,15 and 20mm which respectively deliver 57, 80 and 115
LPM of water at 1 bar pressure
Nominal RELEASE TEMPERATURES AND COLOUR CODING
Glass bulbs
Nominal Temperature in °C Liquid Color Code
57 Orange
68 Yellow
79 Red
93 Green
141 Blue
182 Mauve/Purple
227 Black
260 Black
Selected temperature rating shall be at least 30° above highest ambient
temperature at the site of installation.

Upright Sprinkler • Sidewall Sprinkler

Conventional Sprinkler
ESFR- Early Suppression Fast Response Sprinkler

Low value of RTI, indicates a fast response.
Under standard testing procedures ( 135°C air at a velocity of
2.5 m/s), a 68°C sprinkler bulb will break within 7 to 33
seconds, depending on the RTI.
Extended Coverage Sprinkler
Large Drop Sprinkler

Intermediate / In-Rack sprinkler

Classification Of Hazards
AS PER NFPA 13

Classification of Occupancies
As the water supply, pumping capacity and other
features of the sprinkler installations depends not
only on the size of the risk, but also on its fire
growth and spread potentialities, the risks have
been categorized under the following classes for
the purpose of design of the installation.
Light Hazard …. Hospitals, Hotels, Office Buildings etc.
Ordinary Hazard …. Manufacturing units like Textiles, Paper mills etc.,
Theatres, Departmental Stores etc..
High hazard …. Hazardous units like Paint, Foam Plastics, Celluloid goods
etc.
Storage Hazard …. Classified again under four distinct categories with
varying hazard levels including method of Storage

NFPA 13, 2002, CHAP V Classification of Occupancies.
Occupancy classifications for this standard shall relate to sprinkler design, installation, and water supply requirements only.
They shall not be intended to be a general classification of occupancy hazards.
5.2 Light Hazard Occupancies.
Light hazard occupancies shall be occupancies or portions of other occupancies where the quantity and/or combustibility of contents is
low and fires with relatively low rates of heat release are expected.
5.3 Ordinary Hazard Occupancies.
5.3.1* Ordinary Hazard (Group 1).
Ordinary hazard (Group 1) occupancies shall be occupancies or portions of other occupancies where combustibility is low, quantity of
combustibles is moderate, stockpiles of combustibles do not exceed 8 ft (2.4 m), and fires with moderate rates of heat release are expected.
5.3.2* Ordinary Hazard (Group 2).
Ordinary hazard (Group 2) occupancies shall be occupancies or portions of other occupancies where the quantity and combustibility of
contents is moderate to high, stockpiles do not exceed 12 ft (3.7 m), and fires with moderate to high rates of heat release are expected.

5.4 Extra Hazard Occupancies.
5.4.1* Extra Hazard (Group 1).
Extra hazard (Group 1) occupancies shall be occupancies or portions of
other occupancies where the quantity and combustibility of contents is very
high and dust, lint's or other materials are present, introducing the probability of
rapidly developing fires with high rates of heat release but with little or no
combustible or flammable liquids.
5.4.2* Extra Hazard (Group 2).
Extra hazard (Group 2) occupancies shall include occupancies with
moderate to substantial amounts of flammable or combustible liquids or
occupancies where shielding of combustibles is extensive.

Water Supply for the Sprinkler Installation
LIGHT HAZARD : Not less than 20 minutes run for the pumping capacity
or 35 m3 whichever is greater
ORDINARY HAZARD : Not less than 1 hour run for the aggregate
pumping capacity or 200 m3 whichever is greater.
HIGH HAZARD : Not less than 2 hours run for the aggregate pumping
capacity.
Reservoirs of and over 225M3
capacities shall be in two independent
but interconnected compartments with a common sump to facilitate
cleaning and repairs.

Sprinkler System
Type of Sprinkler Sytem

Sprinkler systems would be supplied by different systems,
such as:
1. Wet Pipe Sprinkler System.
2. Dry Pipe Sprinkler System.
3. Deluge Sprinkler System.
4. Pre-action Sprinkler System.
5. Anti Freeze System

Pipes always pressurized with water, when sprinkler is actuated by the action of
heat, the water flows directly by the action of fire pumps through the water sprinklers.
Wet Pipe Sprinkler System.
Most Common System

Dry Pipe Sprinkler System.
Pipes are filled with compressed air or nitrogen, when sprinkler is
actuated by the action of heat, the water flows by the action of fire pumps
through the water sprinklers.

Dry pipe sprinkler systems are usually installed in unheated buildings or where
there is the possibility of sprinkler pipes freezing.
The dry pipe valve and related equipment must be in a heated location.
Dry systems have pressurized air in the sprinkler piping. This allows for
supervision of the piping and keeps the dry pipe valve closed which prevents
water from entering the system.
The system side of a dry pipe valve may be approximately 5 times larger than
the supply side. This allows a lower pressure [usually 40 psi ], to hold back the
city water supply. There may be a small amount of priming water on top of
the valve to create a better seal.
Dry pipe valves have an intermediate chamber, or alarm port. This may run to
the outside of a building to operate a water motor gong. Under normal
conditions, this section of piping has no pressure or water. The pressure type
water flow switch is installed on this section of piping. Vane type water flow
switches are not allowed on dry pipe sprinkler systems per NFPA13. Because
when the dry pipe valve opens, the water rushes in with such force that the
paddle could be ripped off of the flow switch.

If a sprinkler opens, the air pressure will drop. When the pressure drops
10psi, the PS40 low air switch will trip sending a supervisory signal to the fire alarm
panel. This is just an indication that there is low air pressure in the system, possibly
caused by a compressor failure and someone needs to take action before the dry pipe
valve trips. The PS40 is factory set to trip at 30psi which should be 10psi below
the normal air pressure in the system. And 10psi above the trip point of the dry pipe
valve.NFPA72 requires that the air pressure be monitored to detect a change of
10psi from normal pressure. When the pressure drops low enough such as from an
open sprinkler, the valve will open. This allows the water supply to fill the piping and
be discharged through the open sprinkler. When the valve opens, it also exposes the
alarm line to the incoming water supply. When the pressure in this line reaches 6psi,
the water flow switch will trip. Dry systems MUST use a pressure type flow switch.
Per NFPA, vane type flow switches are NOT allowed. There is no need for a retard on
dry systems, in fact, retards are not allowed.

SCHEMETIC OF WET & DRY
SPRINKLER SYSTEM

Deluge Sprinkler System.
The actuation of the system takes place by a fire alarm system, The types of
sprinklers are open sprinklers, connected to a deluge valve, once the system is actuated
the valve opens and accordingly water flows through the whole sprinklers connected to
the system. ALSO KNOWN AS TOTAL FLOODING SYSTEM.

Deluge system with Electric
Actuated

Deluge system with Wet Pilot
Actuated

Deluge system with Dry Pilot
Actuated

Pre-action Sprinkler System
The actuation of sprinkler doesn’t take place only by the action of heat, but also
by action of fire alarm system(SmokeHeat Detector), pipes are pressurized of air or
any appropriate gas.

Anti Freeze System
Antifreeze solution dissolved through water, prevents the water inside pipes from
getting freeze at the very cold areas.

ZONE CONTROL VALVE
Zone Control Valve is used to control the sprinkler system for each
floor and to separate the floors when a maintenance is needed at any
specific floor.
Components of Z.C.V:
1. OS&Y Gate Valve with Tamper Switch.
2. Pressure Gauge.
3. Flow Switch / Water flow detector
4. Test and Drain Assembly with Sight Glass.
5. Check valve(optional).

ZONE CONTROL
UNIT FUNCTION
1. Isolating of each zone(floor or
zone of open area) for
maintenance purposes.
2. Check system pressure.
3. Drain the specific zone
connected to it.
4. Actuate an alarm during
fire occurrence.
5. Actuate an alarm if OS&Y
gate valve is closed.

OS & Y VALVE
Gate valve is used for
isolating of specific zone
pipes
during maintenance

TAMPER
SWITCH
Electrical switch
installed with the OS&Y gate
valve to check the valve
position.(Alarm will actuate
if the valve got closed)

TEST & DRAIN
ASSEMBLY
Test position: to check whether
the flow is accurate or not.
Drain position: to drain the
network when needed.
Inspection through the sight
glass which make it visible to
check water quality.

FLOW SWITCH
A water flow detector, also
known as a flow switch, is an
electro-mechanical device
designed to send an alarm to
a monitored panel and/or
fire department when a
continuous flow of water
occurs through a fire
sprinkler system's piping.
This flow signifies an
activated sprinkler head or a
leak in the system.
Flow Switch video

AUTOMATIC
AIR VENT
USE IN TOP OF THE
STANDPIPE RISER TO
RELEASE AIR IN LINE.

Storage Occupancies (High hazard)
CATEGORY MAXIMUM STORAGE
HEIGHT IN METRES
DESIGN DENSITY
lpm/m2
AMAO
m2
I 6.5 12.50 260
II 5.5 15.00 260
III 4.5 17.50 300
IV 3.5 22.50 300
In case of storage in racks or shelves, if the height of storage is more than what is
specified, intermediate sprinklers shall be provided for each shelf/rack in addition to
the ceiling sprinklers and overall design density and AMAO shall be maintained.
If the top of the storage in the top tiers of the racks or shelves is within 3 M of the roof
sprinklers, top tiers need not be protected by the intermediate sprinklers. However,
the other tiers shall need to be sprinklered.
The aisle width between the storage stacks shall not be less than 2.5 meters and the
maximum area of each storage stack shall not be more than 150 M2. If these
parameters are exceeded, the design density applicable shall be loaded by 2.5 LPM/ M2
.

PRESSURE AND FLOW REQUIREMENTS
At least 2.2 bars plus other losses at the installation valve at a
flow rate of 225 LPM ……….. For Light Hazard Risks.
At least 2 bars plus other losses at the installation valve at a
flow rate of 1800 LPM OR 1.5 bars at a flow rate of 2100 LPM
……….. For Ordinary Hazard Risks.
Other losses :- Pipeline loss from pump room upto the
installation valve plus the static loss due to height of the
highest sprinkler and the installation valve.
valve
Pump room
Pipe line
Highest sprinkler
FIRST FLOOR
Grd. floor

Sprinkler Coverage
Hazard Type of Sprinklers Coverage
Light Sidewall 18.2 m2/196 ft2
Others 20.9m2/225ft2
Ordinary Sidewall 9.3m2/100ft2
Others 12.1m2/130ft2
High General 9.3m2/100ft2
In Storage racks 10 with single row
7.5 with double row

SPRINKLER SPACING
Light and Ordinary hazards
Distance between sprinklers
on a range as well as adjacent
rows shall be between 2M and
4.6M.
High hazard
Distance between sprinklers on
a range as well as adjacent rows
shall be between 2M and 3.6M.
The distance between the boundary and sprinklers when measured
along the range pipe shall not be more than 0.5 times the spacing
between the sprinklers and when measured perpendicular to the
range pipe shall not be more than 0.5 times the spacing between
the range pipes.

Location of Sprinklers
Location of Sprinklers with specific relation to the
types of building features as follows:
Roofs and Ceilings … Without Beams or bays
Roofs and Ceilings … With Beams but without bays
Roofs and Ceilings … With Deep Beams and bays
Columns and Girders
Roof Trusses
Concealed spaces …. False ceilings and false floors
…etc.
Specific placements of Sprinklers will be necessary
as against normal spacing requirements in view of
the building layout and obstructions.

SPRINKLER LOCATION WITH RESPECT TO CEILING OR
ROOF
Type of Roof
or ceiling
Distance
Minimum
in
Maximum
Millemetres
Preferred
combustible -
asbestos cement
sheets, wired
glasses etc
75 300 150
combustible with
exposed rafters
and/or open joists
etc
75 150 ---
non-combustible-
either plane or
arched or sloping
75 450 150

Obstructions
Ducts :- 0.8m in width or 1m in diameter
to be sprinklered below hoods, storage
racks, worktables etc . to be
sprinklered below.
Concealed space :- if the space between
the false ceiling and the main ceiling is
more than 800mm, to be sprinklered.
A clear space of 0.6m shall be radially
available from the bottom of the deflector
of sprinkler.

Sprinkler Protection for specific hazards
Again, generally followed spacing and design can not be adhered to
certain specific risks as follows:
Film and Television studios
Theatres and Auditorium
Computer and EDP Installations
Plastic roof lights
Cold Storage arrangements
Intermediate level protection in high piled areas … etc..
Additional requirements specific to the type of risk, type of hazard and
layout for the above have been specified.

Defects observed in design and installation
Number of Sprinklers less than the actual
requirement
(Installation according to theoretical requirements)
Improper spacing between sprinklers in the same
range or between those in the adjoining range.
Density requirements for storage areas.
Installation of sprinklers in areas containing two
types of hazards (Mixture of ordinary and high
hazards)

Defects observed in design and installation
 Designing Sprinkler installation layout.
 Provision to Drain stagnant water from the installation.
 Selection of sprinkler heads according to the type of risk
as well as the building in which the risk is housed.
 Overlooking additional sprinklers below the roof
sprinklers due to obstructions.
 Hydraulic Balancing of the system (Identical behavior of
the pump while catering to favorable and remote
locations)

WATER MIST SYSTEM
AS PER NFPA 750

What is Water Mist
Fire Fighting
System?
Water mist system uses
high pressure pumps to discharge
water through nozzles by a
smaller droplet size than the
traditional water sprinkler
system(Droplet size would be 50
- 120um)
As the droplet water size is
small, it provides fast cooling of
the surface and thereby rapidly
extinguish fire.

NOZZLE
DISCHARGE
Nozzle working pressure
= 80 Bar -110 Bar

SPRINKLER &
SPRAY HEAD
Sprinkler head is
normally closed, while Spray
head is normally open.

COMPARISION BETWEEN WATER SPRINKLER & MIST DROPLET SIZE

WATER MIST SYSTEM
BENIFITS
• Protect the utilities more than the traditional water sprinkler system
by decreasing the water droplet size and thereby decreasing the water
damage.
• Water mist system discharges typically about 90%less water than the
traditional water sprinkler system.
• Less water tank size would be used while using water mist system.
• Smaller pipe size comparing with traditional water sprinkler system.
• Less number of sprinkler than traditional water sprinkler system.
• Easy installation and require less maintenance than traditional
sprinkler system.
• Water mist system would be used for ELECTRICAL fire
extinguishment.
DISADVANTAGE
• No 2.5” L.V would be connected
to the system.

WHERE TO USE WATER
MIST SYSTEM
• Water Mist system is required for firefighting of
high valued places, which may be damaged with the
action of traditional sprinkler system due to the high
amount of water, such as:
• Museums.
• Historical Palaces& Galleries.
• National Library& Archives.
• Tunnels.
• ships.
• Egyptians people's Assembly.

WHERE NOT TO USE
WATER MIST SYSTEM

FEATURES OF WATER MIST SYSTEM
• High pressure pumps(140 Bar) supplying for about 30 minutes
by 3m3 Water Tank:
1. Gas pumping unit(shortage of water/Electricity), consists of
Nitrogen& Water Cylinders(50 liter).
2. Diesel & Electrical Pumping Unit.
• Nozzles are made of stainless steel.
• Pipes are made of stainless steel or copper.
• Valves are made of brass or stainless steel.
• ½” to 1 ½” stainless steel pipes.

DIESELELECTRIC
HIGH PRESSURE
PUMPS
The pump discharge pressure
is about 140 Bar.
The shown unit consists of 6
(27KW)motors(12 pump)(SPU -6).
Each pump discharges about
48 lpm at 140 Bar.(positive
displacement).
The system is pressurized
with a jockey pump of about 25 Bar,
System actuates when pressure
drops to 17 bar in 10 seconds.

GAS DRIVEN
PUMP
Used at areas where
power supply isn’t available.
Nitrogen/air driven, 200
bar cylinders(pneumatic system
- double acting cylinders).
Water cylinders of 50
liters.

MACHINERY
SPACE UNIT
Used at small enclosed
areas.
Each cylinder is
connected to 4 nozzles to
supply about 10 minutes.
Maximum height is 5
meters.

FOAM SYSTEM
Foam system is used for fire
suppression by separating the
material& oxygen by
providing a separation foam
layer, preventing its contact
with oxygen, resulting in
suppression of the
combustion.

FOAM SYSTEM OPERATION
• The foam concentrate is mixed with water in a mixing valve and is discharged through
the foam generators. The nominal working pressure is 6 bar.
• Foam generators are installed at the highest level in the protected space and at strategic
locations above high risks areas. The water/foam mixture is expanded with air in the
generators.
• The air used for producing foam is drawn from the protected space, thus, no ducting and
fans for external air is required .
• The foam produced by the foam generators falls due to gravity to cover the entire
protected space..

FOAM EXPANSION TYPES
• Low-expansion foams have an expansion rate less than 20 times.
Used on burning spills
• Medium-expansion foams have an expansion ratio between 20 and 200.
• High-expansion foams have an expansion ratio over 200. They are suitable
for enclosed spaces such as hangars, where quick filling is needed.
Used when an enclosed space, such as a basement or hangar, must be Quickly filled.

FOAM SYSTEM
COMPONENTS
Foam System consists of:
• 1. Storage tank for foam concentrate.
• 2. Foam concentrate pump.
• 3. mixing valve located in the foam central room.
• 4. Foam discharge nozzle.

FOAM SYSTEM
CALCULATION EXCEL SHEET
Computed By:
Checked By:
Approved By:
Design parameters
Solution Density 0.16 gpm/ft2
Discharge Time 10.0 min
Foam Concentration 3%
Sprinklers Spacing 3.0 m
Sprinklers K-Factor 5.6 gpm/psi1/2
Safety Factor 10%
Protected space dimensions
Name of Protected Space
Length 20.0 m
Width 10.0 m
Height 5.0 m
Area 200.0 m2
2152.8 ft2
Volume 1,000 m3
Foam system characteristics
Discharge rate 344 gpm
Solution volume 3,444 gallon
Foam volume 114 gallon
No of Sprinklers per length 7
No of Sprinklers per width 4
Total No. of Sprinklers 28
LFO
Project:
Date:
Foam Fire Fighting System Calculations
Eng. H.S & E.S
Eng. M. Gamal
Dr. H. Soliman

CALCULATING
PERCENTAGE OF FOAM

FOAM SUPPRESSION SYSTEM FOR
SPECIAL FIRES

BLADDRE TANK
PROPOTIONING METHOD

HIGH EXPANSION FOAM
DELUGE SYSTEM

AUTOMATIC GAS
SUPPRESSION SYSTEM
NFPA 12

Gas suppression system is used as INERT GASES, it decreases the percentage of
oxygen in the air and accordingly extinguish the fire by breaking one of the three
FIRE TRIANGLE LINES.
Most common Gas Suppression System:
Co2 Gas Suppression System.
FM-200 Gas Suppression System (HFC-227).
NOVEC Gas Suppression System.
Dry Chemical Powder.
Rooms or places being protected by Gas Suppression Systems
should be totally closed from outside air(Automatic Closing Doors-Fire Dampers)

CO2 SYSTEM
Co2 system is used where a total flooding gas suppression is
required at a specific space which has no persons inside.
Used for the protection of :
Electrical Rooms.
Main Ring Unit.
Transformer Room Units.
Generators.

CO2 SYSTEM
WHY CO2?
• Electrically non-conductive gas.
• Environmentally friendly.
• Natural occurring gas.
• Well specified -NFPA 12.
• Leaves no residue.
• Available refill at low cost.
WHAT IS CO2?
• Carbon Dioxide.
• Colorless and odorless gas.
• Clean agent substitute to Halon
1301.
• Pressurized at 57 bars in high
pressure cylinders at liquid state.
• Density is 50% greater than air.

CO2 SYSTEM
WHERE TO USE ?
• Unoccupied areas of electronic and
technical rooms.
• Transformer Rooms.
• Battery and UPS Rooms.
• Remote base stations and shelters.
• Archive and storage Rooms.
• Generator room and power House.
• Flammable liquid materials.
• Fuel Room.
HOW DOES CO2 WORK?
• Liquid CO2 forms solid dry ice (snow)
when released into the atmosphere -
cooling and heat absorption effect.
• CO2 reduces the concentrations of
oxygen in the air to the point where
combustion stops - from 21 to below
15%.
• Consideration must be given to the
fact that if CO2 is inhaled, it may lead
to asphyxia.

CO2 SYSTEM
OPERATION
• Fire detectors sense fire conditions in
the hazard area (smoke,heat,gas,air
sampling...)
• Electrical signal is sent through the
fire alarm alarm control panel FACP
to the control head.
• Control head releases CO2 from the
cylinders and is delivered through a
fixed piping network to discharge
nozzles in 1 min for surface fires and
less than 7 min for deep-seated fire.
METHOD
Three methods of application :
• Total flooding for enclosed spaces.
• Local application for discharge directly
into the fire (surface fire in flammable
liquid, gases..).
• Hand hose line for fixed supply of
CO2.

CO2 CYLINDER
CO2 SYSTEM EQUIPMENT

CO2 SYSTEM
CALCULATION EXCEL SHEET
Co2 Calculation Sheet
1- Total Flooding System
CO2 quantity = Hazard remote volume (V) x Flooding Factor
Where:
Flooding Factor for room volume less than 56.6m3 the flooding factor should be 1.6kg CO2/m3
, and for room volume greater than 56.6m3 the flooding factor should be 1.33kg CO2/m3
(NFPA 12, Table 2-4.2.1 )
Input Data
V= 324 m
3 ←
V= 11442 ft
3
Flooding Factor= 1.33
Output Data
CO2 Quantity 431 kg
The Required Number of Cylinders 10 Based on the recommended cylinder size is 45 kg

FM-200 SYSTEM [HFC 227ea]
Similar to the Co2 system, but would be used with
occupants existence.
Used for the protection of :
• Control Room.
• Security and Monitoring Room.
• Server Room

FM 200 DESIGN
• Total Flooding is the only approved application
method for FM-200® systems !
• The room needs to be sealed adequately to maintain
the gas, and prevent re-ignition.
• Doors and windows must be closed before discharge.
• Cylinders need to be inside, or fairly close to the
protected area.

FM 200 CALCULATION
SHEET
FM200 Gaseous Fire Fighting System Calculation
Design Location Tx Room
Room Area 7.50 m2
Room Height 3.50 m
Room Volume 26.25 m3
Minimum anticipated temperature of the protected area 15.5 0
C
The amount of clean agent required shall be calculated from the formula.
Equation 1. W = V / S [ C /( 100 - C )] C = Clean agent concentration by volume
8.0%
Equation 2. K1 = 0.1269
S = 0.13465 m
3
/kg K2 = 0.0005
Calculation Result
Total Weight of clean agent 16.95 kg
No. of Nozzle Required -
FM200 Maximum Discharge Time -
Maximum Discharge Rate of Each Nozzle -
Symbols
W Weight of FM200 [kg]
S Specific Volume [m
3
/kg]
C FM200 Concentration [%]
T Temperature [
o
C]
V Volume [m
3
]
K1, K2 Constant Specific to the FM200
S = K1 + K2 (T)
} for FM200 only

NOVEC CALCULATION
SHEET
Computed By:
Checked By:
Approved By:
Hazard Area No.1
Protected Hazard Dimensions
Name of Protected Hazard Area
Height 3.0 m
Area 100.0 m
2
1076.4 ft
2
Volume 300 m
3
0.0 m
3
Design Parameters
Class of Hazard Area A
Net Volume of Hazard Area 300.0 m3
Design Temperature in Hazard Area 20 o
C
Agent Specific Volume @ 1 Atm. pressure 0.072 m
3
/kg
Minimum Design Concentration 4.2 % per volume
Agent Design Concentration 5.4 % per volume
Tee Count of Piping System 6.0
Hazard Area Pressure 1.0 atm
Design Safety Factor 0.02
System Sizing ّ
Agent Net Capacity 243.0 kg 535.7 Ibs
Agent Net Capacity Percentage 67 %
Total Agent Flow Rate 24.3 kg/sec 53.6 Ibs/sec
Required No. of discharge Nozzels 3
Acual Flow per Nozzel 8.1 kg/sec 17.9 Ibs/sec
Nozzel and Branch Pipe Diameters 1 1/2 inch
Main Pipe Diameter 2 1/2 inch 3
Hazard Area No.2
Protected Hazard Dimensions
Name of Protected Hazard Area
Accepted
elect
Volume of Fixed Structures
Impervious to Agent vapor
Project:
Date:
NOVEC 1230 Total Flooding System Calculations
Eng. H.S
Eng. M. Gamal
Tel
Dr. H. Soliman

PDF FILE FOR FM 200,
NOVEC & CO2

FEATURES OF DRY
CHEMICAL POWDER

FIRE TERRACE
CO2 SYSTEM
Designed for the protection
of inaccessible areas such as,
control panels, vehicles, boats
engines.

Thanks to all !!
For the opportunity extended to
deliberate in this seminar
Er.Ezazul Haque Siddique

FIRE FIGHTING NOTES PART 02 BY ER. EZAZUL HAQUE SIDDIQUE .PPT

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