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FIRE FIGHTING PUMPS
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Importance of fire protection
Technological developments & establishment of sophisticated industries
Have increased hazards of fire & explosion. Destruction of property,
personal injury due to fire is a major concern.It is therefore necessaryFor proper identification of these hazards & quick protection of such
Incidents when they occur.
The risks & losses arising out of such accident cant be fully
covered by insurance & therefore it is necessary to take all possible steps
to reduce
The extent of hazards & to minimize losses.An automatic fire protection
system must be provided for total safety.
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Following purposes are served by using proper fire fighting systems.
Safety of human life.
Safety of buildings,plant,equipment,replacement of which is not costly
But time consuming also.
Insurance companies allow substantial rebate on insurance premium
For installing fire fighting equipment's approved by TAC( TariffAdvisory committee)
/ NAPF 20 system approval is made compulsory by TAC.
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FIRE :
There are so many reasons of fire
Careless match
Short circuit
Chemical explosion
the fire can destroy property, profits and
some timespeople too. All that remains is debris
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Fire insurance helps to get back some of the moneyinvested. But insurance cannot bring back every
thing like
loss of stock
loss of production facilities
delay while new machinery arrives
loss of customers
loss of immediate profits while business is being built
Fire insurance cant put out a fire, so that the only
alternative would be to play safe and in the event ofaccidental fire and be prepared to stop fire within
shortest possible time, before it can further damage.
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Fire Hazards
Normally fire hazards are classified in following major categories
1. Light Hazard Occupancies for e.g Cinema theaters, hotels,
hospitals, offices and schools.
2. Ordinary Hazards Occupancies for e.g. Cigarette factories,
Cotton mills and bakeries.
3. High Hazards A&C
Alcohol distilleries, match factories, oil mills, storage yards
for grass and bagasse.
4. High Hazards B
Explosive factories, petrochemical plants, petroleum
refineries etc. are covered.
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III FIRE PROTECTION METHODS & SYSTEMS
fire hazards can occur and increase only if following conditions areavailable
Fuel availability Excessive Heat/ Temperature Oxygen content
This is know as a fire triangle. To control & extinguish fire one or more of
above to be controlled. To cut out fuel To reduce heat To cut off oxygen
All fire protection systems work on one or combinations of above
principles. Hydrant systems Sprinkler system Gas based protection systems Dry chemical powder protection systems and foam systems.
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Out of the above systems sprinkler and Hydrant systems are water based
and are discussed below.
Typical Fire water systems are as follows.
1. Main fire water pump with motor
2. Main fire water pump with engine
3. Jockey pump with motor
4. Piping, Hydrant valves hoses and other accessories.
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I. Sprinkler system:
This is water based system operated automatically through pressure
sensing devices or through specially designed deluge valve. The
water delivered is spread on desired object to extinguish fire.
The temperature rise during fire activates sprinkle head which in turn
sprays water in the fire area
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II . Hydrant system:
This is also water based system and can be operated either manually or
automatically. In this system pressurized water can be used for
extinguishing the fire. The operation of the system is governed by a
pressure-switch mounted on hydrant line near the pump discharge. The
delivery line is connected to a network of pipe lines and system is
pressurized.
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In case of fire, when a hydrant valve is opened, a pressure drop is
created in the system giving signal to control panel and thereby
starting motor or diesel driven fire water pump. This pump can be
stopped manually.
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Rules & Regulations:
TAC/NFPA 20 has recommended various parameters for selection
of duty point for FW pump sets.
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.
. TY
T ITY
( )
( I)
.
( )
1) B 28 18 750 80-150 1500
2) B 28 - 30 1000 80-135 1500
3) B 35 18 1250 80-150 1500
4) B 35 22.5 1500 80-150 1500
5) B 35 30 2000 80-135 1500
6) B 42 18 2500 100-150 1500
7) B 42 22.5 3000 125-150 1500
8) B 42 30 3500 125 1500
IFUG FI U V I U I ( V. . )
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Specific Requirements for Pumps and Prime
Movers TAC/NFPA 20
1. P MPS (MAIN FW)
More reliable/Energy savings/Efficiency becomes secondary in
consideration.
Pump should start immediately.
Pump should develop desired head with desired capacity
immediately.
The pump should be kept in primed condition.
The pump should have flat characteristic curve.
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FW pump should develop 150% discharge and total head developed
shall be at least 65% of the rated head.
The MOC of impeller, casing ring, shaft sleeve, stuffing box, bush
should be made in non-corrosive material preferable of bronze or
brass. Pump coupling shall be directly coupled.
Belts driven pumps are not acceptable.
Shut off head shall not exceed 120% of rated head in case of
horizontal pumps & 140% of rated head in case of vertical pumps.
For pumps with negative suction, a foot valve with suitable primingarrangement is provided.
TAC has approved our vertical turbine pumps, centrifugal pumps
and end suction pumps with motor/engine.
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The most interesting point about fire fighting pumps is that
its not supposed to use at all most of the times. Hence
careful consideration is to be given to avoid corrosion of
pump components and sticking of rotor unit to the stationary
components in idle condition.
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Jockey pump:Jockey pump:
To compensate water leakage in fire fighting loop a small jockey of
adequate capacity is used.Its main function is to maintain pressure in the system and hence no
special requirements are specified in TAC manual.
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EN INE :EN INE :
Engine should accept load within 15 seconds from receipt of fire
signal.
Engine can be only naturally aspirated, turbo charged either air or
water cooled type. Engine shall be capable of operating continuously of full load at
desired site for a period of six hours.
Engine shall be provided with adjustable governor to control the
engine speed within 10% of its rated speed under any conditions of
load, upto full loading rating.
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Engine rating after correction for altitude shall have BHP rating atleast
20% greater that max. bhp required to drive the pump at its duty
point and in no case less that bhp required at 150% of its rated
discharge.
The coupling between pump and engine shall allow each unit to be
allowed without disturbing to others.
TAC recommend cooling system
a. Heat exchanger cooling.
b. Radiator cooling.
c. Air cooling.
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Exhaust should be fitted with silencer, exhaust piping and total back
pressure should not exceed 2 mercury column.
Fuel tank with level gauge will be fitted & sufficient to run the
engine at full load.
Light hazard - 3 hrs
Ordinary hazard - 4 hrs
High hazard - 6 hrs
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Automatic starting by means of battery powered.
Electric starter shall be provided. The battery capacity shall be
adequate for 10 consecutive starts without recharging. Suitable
battery charging device to charge batteries on trickle and boost to be
provided.
Engine shall be run for the period of at least 5 minutes of each day.
Rotating components shall be covered with protective guards.
Engine with air starting/Hydraulic staring shall be recommended as
perTAC/NFPA 20 as and when required.
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KBL can offer the pump other than TAC approved duty point
from wide range of Our products, also we can show string test
of pump along with brought out instruments in our laboratory
before dispatch.
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HEAT EXCHAN ERWATERFLOW /
PRESS RE
MINIM MWATERFLOWAT 90 DE . TO HEAT
EXCHAN ER LIT/MIN. ( PRESS RE : 100 PSI )
ENGINE MODEL 1500 RPM 1800
RPM
N 495 114 143
NT/NTA/495 & NT 743 151 189
NT/NTA 743 & N 855 175 219NT/A 855 240 300
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Performance engine especially those naturally aspiration, get seriously
affected with change in altitudes, atmospheric temperature and presence
of water vapor in air.
This is because of all these factors collectively reduced quantity of
0xygen available for burning the fuel to drive the engine.
Engine derating as per NFPA 20
a. Altitude
For each 305 m altitude above standard condition (91.4 m) and deduction in
3% on engine HP
b. Temperature Every 5.6 c rise above 25 c in ambient temperature a
deduction of 1%
c. Humidity deration not required as per TAC/NFPA20.
Deration of Engine
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MOTORS:
Electric supply to the pumping sets shall be entirely independent of all
others electric equipment.
Under volt release and no volt collect of the circuit breaker shall be
removed so as to permit the motor to work under any condition.
The motor shall be continuos rating type and shall have power rating
equal to HP required to drive the pump at 150% of its rated
discharge.
Motor shall be totally enclosed type or drip proof type with class B
insulation.
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Theory of operation:
Under normal conditions the entire system is under pressure. Under
pressure there shall be always leakage. Due to this pressure will
keep falling. This loss of water is compensated by jockey pump.
The pressure switch for jockey pump is adjusted slightly below the
system pressure so that pump starts when limit is reached and stops
when system regains its desired pressure.
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During fires sprinkler/hydrant evacuated automatically and gets opened
and starts spray the water. Due to this system pressure drop very
fast. But since water demand is very high, at lower pressure motor
operated fire pump will start. If it also fails to compensate and
stand by diesel engine will start working.
KBL can supply wide range of fire fighting sets. KBL pumps and
accessories satisfies the requirements of TAC/ NFPA 20.
Most of our models are approved by TAC/UL.
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The following major accessories are generally required in the fire
fighting package
1. Right angle ear Box:
Gear box shall have a service (V.T pump only) factor 1.5 to provide
power transmission of prime mover to vertical shaft of pump.
Water cooler as well as, air cooled hollow shaft gear box are
available in market. The cooler material can be steel or cupro-
Nickel (Sea Water) to suit liquid conditions. Gear unit should
have thrust bearing of adequate size to take downward thrust of
pump. It should also have non reverse ratchet arrangement to avoidreverse rotation of pumps. The locking arrangement on the gear
box with pump vertical shaft shall ensure proper locking.
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2. Propeller Shaft:
It couples and transmits torque to gear box shaft from engine
flywheel. It shall have service factor of 1.75 for continuos
duty operation. It will have axial slip and provision for
angular and axial miss alignment.
The diaphragm coupling/holset coupling shall be supplied between
engine flywheel and propeller shaft/pump.
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3. Common Base/Separate base for engine and pump:
we can supply common base which can take complete weight of all
systems and also provide space for mounting various instruments.
Good design significantly contributes towards reduction of
vibrations. Suitable anti-vibration mountings can be supplied to
avoid transmission of vibration to the supporting structure.
Alternatively separate base plate for engine and sole plate can be
supplied in case old vertical turbine pumps.
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G.A DRAWING WITH COMMON BASE :
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GA DRAWING WITH DIFFERENT BASE
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GA DRAWING WITH SCT PUMP
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4. Diesel Fuel Tank:
Fuel Tank should be sized as per customers requirement, while deciding
location of fuel tank it is to be noted that required flow of fuel shall
come to the engine by gravity feed only to meet the NFPA 20
requirements.
Fuel tank should be equipped with flame arrester in vent line, isolation
valve for tank to drain and over flow pipe line, level switch to sense
the level of fuel in fuel tank and give appropriate signals to control
panel. A separate level indicator will be provided to give visual
indication of fuel level in the tank.
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Capacity of fuel tank considering 8 hours continuos running of engine
Fuel tank Engine type
size in liters
200 N 495F
300 NT 495F, N743F, N855
500 KT/A 1150F, V/VT, UTA - 1710F
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FUEL TANKCONNECTIONS :
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5. Circulation Relief alve:
It can be installed on delivery line and set below the shut off pressure (at
min. flow app.. 40%).
It shall provide flow of sufficient water to prevent the pump from
overheating
Circulation relief valve is not required for engine with heat exchanger, as
secondary cooling flow is going though heat exchanger.
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7. Automatic air release valve:
Air release valve can be installed in pump delivery pipe line to ensure the
release of air trapped in column, it shall be sufficiently sized to
allow maximum rate of air release. MOC depends on liquidshandled.
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8. Pressure Switches:
Pressure switches are generally of Donfass or equivalent. They can set to
any point within range of 0 to 10 kg/cm2.
9. Secondary engine cooling water piping:Pumping water is used for engine cooling system. The connection for
cooling water is taken from pump delivery. The cooling arrangement and
its scope shall be generally as per NFPA 20 guidelines.
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T
SC
W
T
I
T
.
UCI
BY
SS B
U I
J
I TY TY
ST
I
WH
C
CK
I
I
I
F
B
F
B
V
V
SECONDARYCOOLING ARRANGEMENT :
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10. Batteries & Battery Charger :
Normally 24V battery is used for starts (12 V two batteries are connected
in series) also as per NFPA 20, one is taken in line after charging and
standby is kept after charging.
3 m long cable with lugs, each for positive and negative terminal and 0.5
m interconnecting cable are standard scope of supply.00
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11. Instrument Panel:
This is incorporated to indicate overall conditions of the system
at pump cooling water circuit and pressure indication in pump
suction and delivery line.
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INSTRUMENT PANEL:
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12. Automatic Control Panel:
control panel is incorporated in fire fighting system for immediate start
of the pump.
It stars engine automatically when the hydrant pressure falls in the
main hydrant line.
Also control panel keeps constant watch on the engine conditions by
giving audio visual indications for unhealthy conditions.
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Audio visuals signals for
Engine fails to start
Lube oil low pressure
High water temperature
Fuel Level low
Engine over speed
Visual indication
Engine running normal
Battery charged
Fuel level normal
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Selector switch for:
automatic starting
Trickle/Boost battery charging
Lube oil low pressure
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14. Exhaust Piping:
the engine exhaust is routed out side the pump house through exhaust
piping.
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EXHA ST PIPIN :
STANDARD SCOPE OF S PPLY
PIPE : 10M LONG, 2.77MM THICKNESS,BENDS 90DEG SHORD,
MS CONFIRM TO ANSI B16-9,FLANGES 4 NO.ALONGWITH
FASTNERS.
S . I XH UST
SIZ
CI / / T/ T
CI / T VT
K / T
K /6S T
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Sr.No Pump Make Split case T. Pumps Remarks
1. Common base (P+M)
(P + E) KBL
N/A
2.
Separate base
(P+E) KBL N/A
3.Coupling guard(M&E) KBL
4
Foundation bolt
(M&E) KBL
5.
Fuel tank
( E) KBL
6.
Battery
(2 Sets) (E) ) (3m cable +
0.5 m)
EXIDE
7.
Sec cooling piping
a. Heat exchanger only KBL b. Radiator / air
cooled (E)
CIL/
KOEL N/A N/A
Scope of supply of accessories:
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Sr. o m ake Sp lit case V . mps emarks
8. uto control anel chyut
( )
9.
Instrument panel
( ptional)
10.
ressure itch
( ptional) ( )
11
ressure auge
( ptional) ( )
12.
xhaust iping
( ptional)
13. ight angle earbox. marillo /
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Sr. o mp Make Split case V . mps emarks
14. ropeller sha t ( )
( nly spider/ olsetcoupling)
nique
( )
15. irculation elie alve( )
namar
16. irculation elie alve
( ) / /
17. elie alve ( )
18. ir release valve ( )
NOTE : Insulation for Exhaust pimping can be made at site only
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CALCULATIONS FORV.T. PUMP
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I ) RATED DISCHAR E ( NET FLOW ) = 450 M3/HR.
A) DISCHARGE REQUIRED FOR SECONDAR COOLING
( FROM GIL RECOMMENDATION FOR V 1710 ENGOF 1500RPM )
= 40 M3/HR.
B) GEAR BOX COLLING ( AMARILLIO GEAR BOX )
= 1.8 M3/HR.
TOTAL FLOW REQUIRED = (450 + 40.7 + 1.8 ) M3/HR
= 492.5 M3/HR
= 136.81 L/S.
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II) BOWL HEAD CALC LATION :
A) SP. GRAVIT = 1.03 ( SEA WATER )
B) COLLAR DECK ELEVATION( FLOOR LEVEL ) = 17.458 M
C) MINIMUM WATER LEVEL BELOW CHART DATUM = 7.0 M
D) PUMP DISCHARGE C/L ABOVE COLLAR DECK = 0.565 M
E) PRESSURE HEAD AT DELIVER C/L = (10.6 X 10)/1.03
= 1 02.91 M
F) DIST.BETWEEN MIN.WATER LEVEL & DELIVER C/L = 17.458+7+0.565
= 25.03 MG) VELOCIT HEAD = Q/ A = 0.13631 / (A)
= 2.787 M/ S.
H) H = INTERNAL HEAD LOSS IN PUMP = 1.21 M
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TOTAL BOWL HEAD ={ DELIVER PRESSURE + STATIC LIFT
+ INTERNAL HEAD LOSS + (V2/2g)}
= 102.913 + 25.023 + 1.21 + 0.396
= 129.541 M
BOWL INPUT = ( Q X H ) / ( 102 X BOWL EFFICIENC )= (136.81 X 129.541) / (102 X 0.75 )
= 231.666 X 1.03
= 238.62 KW
MAX. BOWL INPUT FOR 150 % Q ( FROM CURVE ) = 255 KW
SHUT OFF POWER ( APPROX.) = 200 KW
SHUT OFF HEAD FROM CURVE = 182 M
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P MP : BHR 35 - 22.5 DE THREE STA E P MP .
FIRE FI HTIN CONDITION
A) SHUT OFF SHOULD BE < 140 HDP
< 1.40 X 129.541 M
ACTUAL HEAD 174 M < 182 M
B) FOR 150 % Q H > 0.65 HDP
150 X 136.8 = 205.21S > 0.65 X 129.541 M
FOR 205 S HEAD > 84.55 M
AS PER 92 M
SO,
BOTH NFPA20 CONDITION ARE SATISFIED.
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S SPENSION LEN TH CALC LATION :
A) COLLAR DECK ELEVATION : 17.458 M
B) CHART DATUM TO MIN W.L. : 7.0 M
C) POSITION OF E E OF LEVEL OF FIRST IMPELLER FROMMIN.WATER LEVEL :3600 MM
D) IMPELLER E E TO BELL-MOUTH EDGE : 258 MM
E) COLLAR DECK TO PUMP MOUNTING : 265 MM
TOTAL SUSPENSION LENGTH
(17458+7000+3600+258+265) = 28581 MM.
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GEAR BOX SELECTION :
MAX.BOWL INPUT = 255 KW X 1.36
= 346.8 HP + 2.1 HP ( SHAFT LOSSES )
= 348.567 HP.
POWER REQUIRED AT GB SHAFT = 348.5676 / 0.96 ( 96 % GEAR EFF. )
= 363.09 HP.
CONSIDERING 1.5 HP LOSS IN PULLE = 363.09 + 1.5 HP
= 364.59 HP= 365 HP
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IN BUILT SERVICE FACTOR IN GEAR BOX : 1.5
SAFET FACTOR : 1.5
RATING OF GEAR BOX = (365 X 1.75) / 1.5
= 425.83 HP.
GEAR BOX SELECTED HH 425 WITH 425 HP AT 1750 RPM.
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ENGINE SELECTION : (AS PER TAC 7.4.5.2.3) :
ENGINE H.P. RATING WILL BE
A) 20 % IN EXCESS OF THE MAXIMUM BHP REQUIREDTO DRIVE TO THE PUMP AT D.P.
BPKW = 238.62 X 1.36 + 2.1
( BEARING.& TRANSMISSION LOSSES )
= 326.6 X 1.20
= 391 HP
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B) THE BRAKE H.P. REQUIRED TO DRIVE THE PUMP AT 150 %
OF ITS RATED DISCHARGE = 255 KW X 1.36
= 346.8 HP.
SO,ENGINE SELECTION = 420 HP .
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ENGINE DERATING AS PERNFPA 20 :
Altitude : 500 mTemperature : 40 CHumidity : 40 % at 40 C
Application deration percentage for :
a) Altitude : {(500 - 91.4 ) / (305)} x 3b) Ambient temp. : {(40.25/5.6) x 1 % }
c) Humidity : N.A.
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TOTAL = a + b + c= %
Selected H.P. = 420 H.P.
H.P.Avaliable after deration = 420 { 100-(_ _)/100 }= _ _ BHP.
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GUIDE LINES FOR GENERATION OF
SPARE PARTS BUSINESS
FOR V.T. PUMPS AND LARGE SPILT CASE PUMPS
Use of ISI- 6 strainer instead of S galvanized in case of
turbid liquid.
Provision of bottom bearing arrangement in bell mouth for
improvement of pump life. The bottom bearing provides supports
to lower part of the impeller shaft which enhance the life of the
pump.
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Study the site condition, sump layout, liquid details and
recommend suitable material of construction to over come the
problem, if any.
Recommend impeller material CF or C 6 if liquid
contains abrasive sand particles or chloride contents exceeds
PPM.
Impeller guide piece material CF M or C 6 M instead of Cast
Iron for BHM and BHQ type pumps.
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Recommend improved design of discharge case having higher
size [ ] bleed off connection and use of schedule / pipes
instead MS IS: pipes in order to avoid excessive leakage
through tube tension nut.
Use of Thordon type bearing and hardened shaft sleeve I case
of turbid liquid.
Suggest provision of mechanical locking arrangement for
Thordon type bearing to over come the problem of loosening and
coming out from housing.
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Recommend higher shell thickness or RW column pipes to over
come water leakage problem through welding joint.
Replacement of conical / Screwed coupling / old type
coupling for higher size shaft diameters [ i.e. above 6
mm diameter] by muff coupling of improved design.
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Recommend cast iron discharge head which has better
dampening properties in place ofMS discharge head or
suggest integral MS ischarge head [ ischarge head and
motor stool] to over come vibration problem or suggest to
reduce bearing span after taking prior approval ofPDE.
Recommend improved design of stuffing box with throttle
bush arrangement to avoid excessive leakage through stuffingbox.
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Recommend hardened Stainless Steel material for shaft
sleeve under stuffing box to avoid fast wearing of sleeve below
gland packing to minimize stuffing box leakage.
Replacement ofMitchell type bearing / lacier type thrust
bearing by antifriction bearing for reducing bearing loss. If at
clients end antifriction bearing is giving trouble then suggest
use ofMitchell type / lacier thrust bearing.
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Conversion of oil lubricated pumps into self/external water
lubricated pumps with hardened Stainless Steel shaft sleeve and
Thordon/ rcot/Finostos bearings.
Replacement of old imported pumps with KB pumps of
improved design.
Replacement of competitors large size V.T. Pumps bowl
assembly for old imported pumps or Indigenous pumps by KBpumps for improved performance.
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Pump operating parameters to be verified based on system
head. If client requires higher discharge or system head is more
then suggest use of higher impeller diameter by checking
possibility of/margin on motor kW. If existing motor rating is not
sufficient, then select new efficient pump type. If client requires
both head and discharge more then check possibility of
changing only pump unit.
S
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7/6/2011 KBL 76
Suggest superior material to over come the problem of fast
wearing of cast components considering water analysis.
Recommend alternative material for pump component in case
financial constraints of customer [e.g. CI impeller instead of
Bronze, . % iCI instead of . to % iCI], keeping him
informed about less life of component as compared to original
supply.
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7/6/2011 KBL 77
Conversion to separate thrust bearing in pump inarge V.T. Pumps instead of combined thrust-bearing
design provided in motor.
Suggest to replace all rings, fasteners, gaskets,keys during overhaul of V.T. Pumps.
Recommend CF M impellers instead of BRONZE forspilt case pumps supplied in sugar industries to
enhance the life.
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7/6/2011 KBL 78
Recommend use of mechanical seal inplace of glandpacked stuffing box arrangement for split case pumps
for reducing leakage as well as friction loss.conversion of grease lubricated split case pump into oillubricated pump to increase the bearing life of thepump.
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7/6/2011 KBL 79
Suggest to replace metallic water deflectors inplace of
rubber to avoid entry of water in bearing in case of oil
lubricated spilt case pumps.
Spare impeller of 6UPH and above pumps shouldbe taken with impeller rings as standard supply.Impeller rings will be supplied fitted on impeller.For UPH/UPL pumps order for pump shaft should betaken with sleeve nuts and bearing nuts.
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7/6/2011 KBL 82
Refurbishment & Retrofitting Of Existing Pumps.
A) Needs For Refurbishment & Retrofitting.
1) Upgrading Of Unit Capacity At Minimal Investment.2) Adding Capacity To The Existing At Optimum Cost.
3) To Achieve Energy Saving.
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7/6/2011 KBL 83
B) Basic Approach For Refurbishment
1) Review Of Operational History Of The Pumping Equipment
& System
2) Analysis Of Data,records & Maintenance Of Overall
Records.3) Visual Examination Of Failed Pump Parts To Access
Whether Cause Of Failure Is Due To Aging Or Due To
External Cause Such As Corrosion,erosion Etc.
C) Factors Responsible For Aging Of Pump
1) Prolonged Off Design Operations.
2) High & Low cyclo Fatigue.
3) Wear & Galvanic Corrosion Due To Improper Selection Of MOC.
H KBLC P ti i t I R f bi hi Of
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7/6/2011 KBL 84
How KBLCan Participate In Refurbishing Of
arious Pumps
This Involves Review Of Various Design Parameters
Of Pumping Equipment In The System.
1) Variation In System Head Parameters Including The Variation
In The Static Head,water Level Over The Day & ears.
2) Study Of The System Resistance Of Discharge Piping Network For
Estimating Shifting Of Operating Point Of Pump.
3) Any Major Changes In The System, Such As Suction Intake Design
Piping System,after Installation Of Pump That Were Not Consider-
Red In Design Change.
4) Post Operation & Failure History Of The Pump,overall Operation
Vibration Behavior.
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7/6/2011 KBL 85
5)water Quality Monitoring & Its Record For Correlation Of Pump
Operation.
6) Failure Pattern Of Worn Out Components.
7) Flow Condition In The Sump.8) Transient Behavior Of The System .
9) Foundation Delivery Pipe & Driver Motor Details.
10) Influence Of Piping System & Foundation On The Vibration
Performance Of The Pump.
11) Existing Pump Performance Curve.
12) Operation History Of The Pump At Different Flow Condition.
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7/6/2011 KBL 86
The Above StudyWill Help To :
Identify The Most Critical Parameters & Pump Element
Responsible For Frequent Down Time Of The Pump Operation.
A) Determination Of The Most Optimum Pump Parameters That Would
Match With Existing System, Sump Design,motor,foundation &
Piping Etc.
B) Extent Of Modification Permitted In Existing System In Terms Of
Flow , Efficiency Improvement ,Satisfactory Vibration Perform-NCE & Over All Increase In Availability Of Pumps.
RETRO-FITTING FOR VT PUMP :
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7/6/2011 KBL 87
RETRO FITTING FOR VT PUMP :
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7/6/2011 KBL 88
Energy Audit
Energy Conservation Now A Days Has Become A Prime Concern
In Any Industry / Organization . Scarcity Of Energy & Day By DayIncreasing Cost Of Forcing All The Profit Centers To Think Over
Energy Saving In Each &Every Activity Carried Out.
The Government Is Also Cautions About Energy Saving . The
Example Of These Are Kerala & Gujarat ,Where State Governments
Made Energy Audit Compulsory In Pump Replacement Project.
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7/6/2011 KBL 89
Government Has Made Strict Company Laws For Energy
conservation.KBL Has Conducted Energy Audits of pumps on
Sites.Now A Days Many Parties Are Asking For Energy Audit. Hence It Is
Very Much Essential To Start Energy Audit Of The Pumping System AtSite & Suggest The Energy Efficient Alternatives/improvements To
achieve Energy Efficient Performance.
During Energy Audits at Site we have noticed the Consultant Has
selected Pump for Higher head. The Small Size Energy Efficient Pump
Be Sufficient. This Will Save ConSiderable Amount Of Energy.