IS 13930: Shipbuilding - Ships' main engine fresh water cooling system - Code of practice

17 Pages·1994·1.8 MB·English

by  Bureau of Indian Standards

इंटरनेट मानक
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in order to promote transparency and accountability in the working of every public authority,
and whereas the attached publication of the Bureau of Indian Standards is of particular interest
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education and knowledge, the attached public safety standard is made available to promote the
timely dissemination of this information in an accurate manner to the public.
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Mazdoor Kisan Shakti Sangathan Jawaharlal Nehru
“The Right to Information, The Right to Live” “Step Out From the Old to the New”
IS 13930 (1994): Shipbuilding - Ships' main engine fresh
water cooling system - Code of practice [TED 17:
Shipbuilding]
“!ान $ एक न’ भारत का +नम-ण”
Satyanarayan Gangaram Pitroda
““IInnvveenntt aa NNeeww IInnddiiaa UUssiinngg KKnnoowwlleeddggee””
“!ान एक ऐसा खजाना > जो कभी च0राया नहB जा सकता हहहहै””ै”
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“Knowledge is such a treasure which cannot be stolen”

s1 03931 : 4991

Indian Standard
SHIPBUILDING - SHIPS’ MAIN ENGINE
FRESH WATER COOLING SYSTEM -
CODE OF PRACTICE
UDC 629’12 : 621’436-713’1

(0 BIS 1994
BUREAU OF INDIAN STANDARDS .
MANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG
NEW DELHI 110002

yraunaJ 1994 Price Gromp 6
gnidliubpihS lanoitceS ,eettimmoC DET 17
FOREWORD
sihT naidnI dradnatS was detpoda yb eht uaeruB fo naidnI Standards, retfa tfardeht dezilanif yb
eht gnidliubpihS lanoitceS eettimmoC had neeb devorppa yb eht tropsnarT gnireenignE noisiviD
.licnuoC
sihT standard has neeb deraperp ot yficeps snoitadnemmocer and stnemeriuqer rof main leseid
enigne gnilooc hserf retaw gqipip metsys ni ships htiw eht tcejbo ot erusne ytimrofinu and reporp
working fo eht .metsys
nI gniraperp this standard eud noitaredisnoc has neeb nevig ot srotcaf devlovni and tnerruc
secitcarp gnidrager eht esu fo suorref .slairetam
eruliaF fo eht tnenopmoc parts fo hserf retaw gnipip smetsys yam rucco as a tluser fo tnemegnipmi
,kcatta arising morf evissecxe .ecnelubrut hcuS a noitidnoc yam eb thguorb tuoba yb roop
,ngised pihsnamkrow ro eht esu fo oot hgih a retaw .deeps evissecxE retaw deeps yam esira
as a tluser fo raop .ngised eruliaF yam osla rucco yb gnittip gnitluser morf tisoped kcatta and
gnikcarc eud ot stress noisorroc ro yb lareneg wastage.
noitnettA shall eb nevig ot eht ,ngised noitacirbaf and noitallatsni fo metsys ot erusne denilmaerts
.wolf nI ,ralucitrap tpurba segnahc ni eht noitcerid fo ,wolf dehctamsim epip ,serob ebut erob
snoisurtorp and rehto snoitcirtser ot wolf shall eb .dediova etauqedA noisivorp is ot eb edam ni
eht hserf retaw smetsys rof eganiard and gnitnev fo eht metsys krowepip and .tnempiuqe -isnoC
noitared is ot eb nevig ot eht gnjttif fo citamotua ria srotanimile ni ecnereferp ot tnev .skcoc
At hcae egats fo noitcurtsnoc ti is eht ytilibisnopser fo eht resu fo this naidnI dradnatS ot erusne
ecnailpmoc htiw eht stnemeriuqer fo eht yrotutats seitirohtua ro/dna noitacifissalc yteicos as
.elbacilppa
ehT eettimmoC elbisnopser rof eht noitaraperp fo this standard is nevig at xennA A.
IS 13930 : 1994
Indian Standard
SHIPBUILDING-SHIPS'MAINENGINE
FRESHWATERCOOLINGSYSTEM-
CODEOFPRACTICE
1 EPOCS 3.3 Piping System
1.1 sihT standard seificeps stnemeriuqer rof eht llA ,sepip sevlav and sgnittif morf enigne teltuo
,slairetam ,ngised ,noitallatsni noitcepsni and ot enigne ,telni tub gnidulcxe all pumps and
gnitset fo ship’s main enigne hserf retaw gnilooc taeh .sregnahcxe
gnipip metsys gnidulcni all sgnittif hcihw mrof
trap fo hcus .smetsys 3.4 Flow Conditions
ehT detcepxe snoitidnoc fo retaw wolf ni -idni
1.2 roF eht esoprup fo this standard hserfa retaw
laudiv parts ro snoitces fo eht gnipip .metsys oT
gnilooc gnipip metsys sedulcni all sepip and
teem gniyrav ngised stnemeriuqer eerht -idnoc
sgnittif morf enigne teltuo ot enigne ,telni
snoit era .desingocer
gnidulcxe eht taeh sregnahcxe tub gnidulcni all
rehto ,sgnittif suoirav ytefas and feiler sevlav
)a Continuous Flow -Where eht retaw ni a
and erusserp and erutarepmet .seguag
metsys ro trap fo a metsys fi gniwolf
ylsuounitnoc rednu eht ship’s lamron
2 SECNEREFER noitarepo .snoitidnoc
2.1 ehT gniwollof naidnI Standards era -secen b) oN Flow - riA stnev and erehw a hcnarb
yras stcnujda ot this standards noitcennoc ot a main epip has its rehto
:
dne .desolc ehT retaw ni that hcnarb is
IS No. Title dedrager as gnivah on wolf .noitidnoc
812 : 1957 yrassolG fo smret gnitaler ot d Intermittent Flow - llA smetsys and parts
gnidlew and gnittuc fo slatem fo eht metsys ton derevoc yb )a( and .)b(
2712 : 1979 desserpmoC sotsebsa erbif
3.5 Purchaser
sgnitnioj ( dnoces
revision 1
3233 : 1965 yrassolG fo smret rof ytefas and ehT ship renwo ro ship rotarepo gnidrocca ot
feiler sevlav and rieht parts eht secnatsmucric fo eht ralucitrap ship.
3 YGOLONIMRET 3.6 Manufacturer
ehT ship redliub ro desirohtua sub .rotcartnoc
roF eht esoprup fo this standard, eht gniwollof

snoitinifed ni noitidda ot esoht nevig ni SI 812 :
4 GNITAR FO METSYS
1957 and SI 3233 : 1965 shall :ylppa
4.1 ehT ngised erusserp gnitar fo eht metsys shall
3.1 Design Pressure ton eb retaerg than IMN/Ma ( 10 rab .)
ehT mumixam erusserp ot hcihw the metsys nac 4.2 ehT hserf retaw gnilooc metsys shall eb
eb detcejbus nehw ni ecivres and is eht eulav dedivid otni eerht etarapes smetsys rof gniwollof
de?u ni ngised .snoitaluclac sihT erusserp yam :snosaer
tluser morf a noitanibmoc fo secnatsmucric
)a ehT gnilooc stiucric era rehtie yllatot
ylekilnu ot rucco rednu lamron gnikrow -idnoc
desolc ro desolc htiw eerf tuo ;wolf
.snoit tuB ti shall ton eb erom than eht tsehgih
tes erusserp fo eht ytefas evlav ro feiler ,evlav )b ehT erutarepmet slevel era tnereffid ni
fi .dedivorp heae ;metsys and
)c ehT erusserp slevel era osla tnereffid ni
3.2 tseT Pressure hcae .metsys
ehT erusserp ot hcihw eht metsys and its -moc 4 3 yllausU eht wols deeps eniram senigne era
stnenop era detcejbus rednu tset .snoitidnoc hserf retaw delooe yb eerht tnereffid :smetsys
tseT erusserp fo eht metsys dluohs eb muminim )i tekcaJ gnilooc hserf retaw ;metsys
5’1 semit fo eht gnikrow erusserp fo .metsys
)ii notsiP gnilooc hserf retaw tmetsys and
,revewoH ,noitadnemmocer fi ,yna fo enigne
)s(rerutcafunam ot eb .deredisnoc )iii leuF evlav gnilooc hserf retaw .metsys
1
SI 03931 : 4991
citsalP and setisopmoc evah on epocs ni
4.3.1 Jacket Cooling Fresh Water System 5.1.2
hserf retaw .metsys erehW desinavlag sepip era
ehT desolc tiucric tekcaj gnilooc metsys yllatot desu yeht shall eb detaert ylreporp ot diova
,desolc sedulcni eht rednilyc ,srenil srevoc and gnisinavlag lairetam ot teg dexim htiw gnilooc
obrut .srewolb ehT erutarepmet and erusserp retaw and gniretne eht enigne parts.
slevel shall eb deniatniam yb gnidivorp -arepmet
erut lortnoc evlav and ni emos ,sesac gnilttorht 5.2 Pumps
)s(eceip ni eht .metsys ehT metsys shall eb
ylsuounitnoc .detnev nI emos senigne obrut 5.2.1 Type of Pump
srewolb era delooc yb eht notsip gnilooc ,metsys
,yllamroN lagufirtnec epyt pumps shall
5.2.1.1
nI esac fo emGs fo eht rehgih yticapac ,senigne
eb deyolpme ni hserf retaw gnilooc .metsys
etsaw taeh fo enigne tekcaj gnilooc retaw is ,yllausU owt pumps shall eb dellatsni ni hcae
desilitu as taeh ecruos rof hserf retaw rotareneg
,metsys eno as gnikrow and eht rehto as stand
hcihw setareneg hserf retaw morf aes retaw yb
.yb
noitaropave at evitagen .erusserp ehT yticapac
is detimil ot eht taeh elbaliava ni eht tekcaj
semitemoS a etarapes retaeherp pmup fo a small
gnilooc retaw ,hcihw ni nrut sdneped no eht yticapac gnola htiw retaeh is detcennoc ni lellarap
enigne .daol roF taeh yrevocer at laitrap daol
ot main .tiucric
,snoitidnoc tnetxe fo taeh yrevocer yam eb
deniatbo morf eht enigne .sredliub ,yllamroN
ecniS eht gnilooc metsys is ,lacitirc ti is -referp
ton erom than %03 fo eht taeh morf gnilooc
elba ot evah otua ni-tuc ot start eht ybdnats
retaw shall eb desilitu rof hserf retaw .rotareneg
pmup ni eht tneve fo eht eruliaf fo eht gninnur
.pmup
4.3.2
Piston Cooling Fresh Water System
5.2.1.2 ecniS notsip gnilooc pumps ekat noitcus
ehT notsip gnilooc metsys shall eb a desolc
morf notsip gnilooc niard tank, ti yam eb fo a
tiucric htiw eerf wolftuo morf eht enigne ot
degrembus ,epyt detnuom yltcerid no eht tank
hserf retaw niard tank. roF gnipeek eht deriuqer
ro a fles gnimirp epyt decalp no pot fo eht
metsys erutarepmet lortnoc evlav shall eb
tank.
.dedivorp
5.2.2
Capacity of Pumps
nI emos epyt fo senigne eht snotsip era delooc
yb gnitacirbul .lio ehT pmup yticapac ni hcae metsys shall eb
dediced gnidrocca ot eht senilediug nevig yb eht
4.3.3
Ft!el Valve Cooling Fresh Waler System enigne reilppus and htiw eud noitaredisnoc ot
( Nozzle Cooling System > eht ciluardyh ecnamrofrep fo eht lagufirtnec
pumps and detamitse sessol ni tuoyal fo gnipip
ehT leuf evlav gnilooc metsys shall eb a desolc
.smetsys
tiucric htiw eerf wolftuo morf eht enigne teltuo
erusosertp leuf tnemeriuqer evlav noisnapxe shall eb tank. tem yb ehT gnipeek citats 5.2.3 Mounting of Pumps
eht noisnapxe tank at a rehgih .level Pumps shall eb detnuom ni hcus a yrw
5.2.3.1
that yeht era ylidaer elbissecca rof .ecnanetniam
nI niatrec ,senigne leuf sevlav era delooc yb
enigne leuf lio ni a esolc tiucric htiw leuf lio
5.2.3.2 nI esac fo yllatnoziroh detnuom pumps,
srelooc ni eht metsys nierehw eht detaeh leuf is
eht pmup and rotom shall eb dengila erofeb
delooc yb gnitalucric aes .retaw erehT era emos
gnitnuom yldigir and as a rehtruf noituacerp
eniram senigne erehw leuf sevlav era ton delooc
elbixelf gnilpuoc shall eb .desu A nommoc esab
rehtie yb gnitalucric hserf retaw ro leuf .lio
emarf rof eht pmup and rotom is elbareferp ot
diova .tnemngilasim nI esac fo yllacitrev
5 SLAIRETAM
detnuom pumps, digir gnitnuom shall eb -ivorp
5.1 sepiP ded at eht esab fo eht pmup .ylno
5.1.1 nI ,lareneg desinavlag leets sepip era desu 5.2.3.3 nI redro ot tneverp ria ekatni otni -eht
tpecxe erehw eht retaw si detaert htiw etirtin tekcaj gnilooc metsys hguorht eht glands eht
esab noisorroc srotibihni ecnis this setaerc egduls thgieh neewteb eht noisnapxe tank and tekcaj
eud ot lacimehc .noitca ehT esu fo reppoc ro gnilooc hserf retaw pmup telni shall eb tpek as.
reppoc desab yolla sepip and sgnittif is ot eb egral as .elbissop
.dediova leetS krowepip and sgnittif rof leets
demarf senigne and muinimula yolla epip krow 5.2.3.4 ehT leuf evlav gnilooc pumps shall eb
and sgnittif rof muinimula demarf senigne era denoitisop raen ot eht leuf sevlav and llew .woleb
.derreferp ehT retaw is ot eb detaert htiw an eht leuf evlav noisnapxe tank.
devorppa noisorroc .rotibihni ehT main enigne
rerutcafunam is ot edivorp egarots and gnixim 5.2.3.5 llA pumps shall eb dettif htiw /dnuopmoc
tanks, rof this rotibihni as .deificeps erusserp seguag etelpmoc htiw gnitalosi evlav fo
2
03931 : 4991
IS
eldeen- epyt ot kcehc eht ecnamrofrep fo eht gnitaeH lioc shall eb dedivorp ot taeherp eht
.pmug .retaw
5.3 Tanks 5.3.4 Others
5.3.1 Jacket Cooling Fresh Water Expansion nI noitidda ot noisnapxe and niard tank a
Tank etarapes tank fo ylevitaler gib yticapac ot tca as
gnixim/egarots tank erehw noisorroc rotibihni
sihT tank shall eb dedivorp ot maintain a citats
nac eb dexim htiw hserf retaw dluohs eb dedulcni
erusserp no eht metsys and ot ecalper eht retaw
as a trap fo eht main enigne hserf retaw gnilooc
.sessol ehT muminim thgieh fo eht tank evoba
.metsys
eht knarc tfahs and eht yticapac fo eht tank
shall eb dediced gnidrocca ot eht noitadnemmocer
lairetaM rof eht tanks and detcennoc sgnittif era
fo eht enigne .redliub ehT teltuo epip morf eht
ot eb as detalupits ni eht ship’s /noitacificeps
tank shall eb egral hguone ot maintain eht citats
elbatpecca ot eht enigne .reilppus
.erusserp riA ,epip wolfrevo ,epip lacimehc
,gnillif hserf retaw ,gnillif level ,eguag wol level
etarapeS eton no ecafrus tnemtaert shall eb
,mrala gnitaeh ,lioc fi deriuqer ot eb dedivorp no
tup rof eht lanretni secafrus fo noisnapxe tanks
eht tank. ehT metsys stnev shall eb detcennoc
and niard tanks.
otni eht tank woleb eht muminim elbissop retaw
.level ehT tanks shall eb dedivorp htiw niard
5.3.5 woL level smrala/noitacidni as rep ship’s
epip and kcoc gnivah gnikcol .tnemegnarra
noitacificeps era ot eb .dedivorp
fI ton elbacitcarp ot etacol noisnapxe tank at
5.4 Heater
eht deriuqer thgieh eud ot ecaps ,noitcirtser a
elbuod gnitca gnisirusserp evlav is ot eb dettif ot
eht pot fo eht tank ni ueil fo eht tnev epip ni 5.4.1 retaeH fo elbatius yticapac shall eb -ivorp
ded ni eht tekcaj gnilooc metsys ot taeherp eht
redro ot maintain eht deriuqer erusserp retfa
main enigne erofeb starting and ot maintain eht
metsys is .desirusserp
erutarepmet revenehw yliraropmet .deppots ehT
retaeh yticapac sdneped no lareves srotcaf hcus
ehT ship redliub is ot ecudorp an rotibihni
as ytitnauq fo hserf retaw ni eht ,metsys -nemid
gnixim tank ot droffa snaem fo lacimehc egasod
snois fo ,sepip ,srelooc ,cte as llew as no eht
ot tcetorp eht metsys morf noisorroc and
tneibma erutarepmet and deriuqer gnitaeh up
.gnizeerf
.emit
5.3.2
Piston Cooling Water Drain Tank
5.4.2 ehT retaeh shall eb detcennoc ni lellarap
ehT hserf retaw notsip gnilooc niard tank shall ot eht ylppus enil esuaceb fo eht egral retaw
eb dengised htiw detargetni notsip gnilooc ytitnauq dereviled yb eht .pmup ehT ssapyb
egakael retaw tank as rep eht snoitadnemmocer retaw wolf shall eb tes rehtie yb a evlav ro htiw
fo eht enigne .redliub ehT tank mrof shall eb an ecifiro .etalp
hcus that htiw a muminim retaw level eht pmup
noitcus sepip egrembus yltneiciffus rof efas 5.5 Separator
.gninnur ehT lio detanimatnoc egakael retaw
shall eb deniard otni a egakael tank hcihw is
5.5.1 Air Separator
largetni htiw tub detalosi morf eht notsip niard
tank yb a wall ro a emarf .etalp A lagufirtnec ria rotarapes ( gnitarea-ed tank )
shall eb dettif ni eht tekcaj gnilooc metsys raen
A remmiks tinu ro yna rehto metsys fo noitaretlif ot eht enigne teltuo ot egrahcsid yna ria ro gas
fo egakael retaw shall eb .dedivorp dexim htiw gnilooc .retaw roF rellams senigne
( yticapac ot eb dediced htiw enigne sreilppus )
ehT tank shall eb deppiuqe htiw ria ,epip -revo
ria noitalitnev epip ot eb dedivorp ni -atlusnoc
wolf ,epip lacimehc and hserf retaw ,gnillif
noit htiw enigne .rerutcafunam
,gnidnuos level alarms, gnitaeh slioc and niard
.noitcennoc
5.5.2
Piston Cooling Water Separator
5.3.3
Fuel Valve Expansion Tank
ehT notsip gnilooc retaw yam teg detanimatnoc
sihT tank shall eb dedivorp ot maintain a citats htiw lio and shall, ,erofereilt ton ot eb del
erusserp and ot secalper eht retaw .sessol ehT yltcerid kcab ot eht noitcus fo eht pumps. An
muminim thgieh fo eht tank evoba eht knarc tneiciffe lio rotarapes shall eb dedivorp as rep
tfahs and eht yticapac fo eht tank shall eb eht snoitadnemmocer fo eht enigne .redliub
dediced gnidrocca ot eht noitadnemmocer fo eht
enigne .redliub 5.6 Coolers
ehT tank shall eb deppiuqe htiw ,gnillif ,gnitnev 5.6.1 srelooC shall eb dedivorp ot e$omer eht
,niard. wolfrevo and lacimehc gnillif .senil taeh derrefsnart morf eht enigne ot eht gnilooc

3
s1 03931 : 1994
.retaw ehT yticapac shall eb denimreted ni 6.1.2 sepiP desu ni eht metsys shall ylpmoc htiw
noitatlusnoc htiw eht enigne .redliub deriuqer erusserp segnar and shall mrofnoc ot
tnaveler naidnI Standards. ehT epyt and lairetam
5.6.2 Jacket Fresh Water Cooler fo eht elbixelf ,sepip swolleb and noisnapxe
seceip era ot eb fo devorppa .epyt
ehT relooc shall eb detacol esolc ot noitcus edis
fo eht pmup os that ti shall krow rednu a rewol 6.1.3 nI redro ot peek erusserp sessol ,wol eht
erusserp and eht erusserp at enigne telni shall eb epip nur shall eb as trohs and tcerid as ,elbissop
deveihca htiw a rellams .pmup thgit thgir elgna sdneb and seceip-T shall eb
tpek ot a .muminim
5.6.3
Piston Cooling Fresh Water Cooler
ehT retemaid fo hcae epip nur shall eb
ehT relooc shall eb dellatsni neewteb eht notsip 6.1.4
denimreted morf snoitaredisnoc fo eht retaw
gnilooc retaw pmup and eht enigne .telni ehT
wolf seititnauq and a elbissimrep mumixam‘
gnikrow erusserp sdnopserroc ot eht yreviled
epip-yticolev ’retemaid .noitacificeps ehT htgnel
daeh fo eht .pmup
fo eht epip shall eb hcus that -niam/lavomer
ecnanet is .ysae
5.7 Control Valves
Maintaining a ralucitrap erutarepmet ni eht hserf 6.1.5 ehT elbixelf sepip era ot eb desu ylno otpu
retaw smetsys is yrev tnatropmi rof eht reporp eht erob ezis fo 50 .mm roF reggib sezis
gninoitcnuf fo eht .enigne noisnapxe swolleb/seceip yam eb .desu gniruceS
stnemegnarra fo elbixelf ,sepip noisnapxe sepip
An citamotua erutarepmet lortnoc evlav shall eb and swolleb era ot eb fo devorppa standards.
dedivorp at eht telni ro teltuo fo gnilooc retaw
ot eht enigne os that eht erutarepmet fo retaw 6.2 Recommended Velocities
shall eb dellortnoc evitcepserri fo eht enigne
.daol ehT evlav shall ton eb detacol at eht 6.2.1 ehT retaw seiticolev rof epip shall ton
tsehgih tniop ni eht ,enil ni redro ot diova ria deecxe deificeps .seulav ehT seulav nevig ni
gnitcelloc ni ti hcihw nac dael ot noitarepo elbaT 1 era rof ecnadiug .ylno
.smelborp
6.3 Development of the Design
5.8 Throttling Piece
sihT shall eb desu rof gnittes eht debircserp 6.3.1 Review Basic Design Data
metsys erusserp at enigne .telni nI redro ot
erusne reporp gnikrow fo gnilttorht eceip a 6.3.2 tsiL pmup sezis dednemmocer yb -pus
sreilp rof a lacipyt .ytud tsiL standard seludom
wolf rezilibats erehw deriuqer shall eb .dettif
rof pmup taeh regnahcxe and stnenopmoc fo
eht main .metsys
6 NGISED FO EPIP ENIL METSYS
6.1 lareneG 6.3.3 ydutS s’resahcrup noitacificeps and eton
laiceps stnemeriuqer rof epip ,slairetam ,sevlav
6.1.1 nI gningised a hserf retaw metsys ti shall ,stnioj noitacirbaf and .noitcere
eb deton that niatrec snoitarugifnoc and emos
sepyt fo sgnittif hcihw evig an elbaicerppa 6.3.4 ydutS yrotutats and noitacifissalc yteicos
erusserp ssol shall eb ,dediova fi .elbissop stnemeriuqer rof eht .smetsys
Table 1 Recommended Water Velocities
( Clause 6.2.1 >
Nominal
Diameter, mm 32 40 50 65 80 100 125 150 175 200 225 250 300
Velocity 1.2 1.4 l-6 1.8 1.9 2.0 2.1 2.2 2.3 2.4 2.4 2.5 2.5
m/s to to to to to to
Suct- :p5 1.7 :; 21 :% 2.3 2.4 ?5 2.5 2.6 ?6 2.7 :F;
ion
Pipe Rate 3.5 6.3 11.0 22.0 34.0 57.0 93.0 140’0 199.0 271-O 343.0 441.0 636.0
of flow to to
ma/h 4.3 7.7 1:q5 :;*o 4zo 6?0 lds90 I$0 2lzo 29Yo 37Yo 47Fo 68:oo
Velocity 1.2 1.4 1.6 1.8 :z 2’0 2’1 Fz fz 2;: “;,” :z 2.5
i m/s to to
Deli- :s :p7 :pg :l 2.2 :?? 2.4 2.5 2.5 2.6 2.6 2-7 2.7
i$i Rate 3.5 6.3 11.0 22.0 34-O 57.0 93.0 140.0 199-O 271.0 343.9 441.0 636.0
of flow to
ma/h 4.3 ;; $5 2:; 4& 6% lo:0 so 2IZ0 2&o 3E.o 4E.o as?0

4
SI 13930 : 1994
6.3.4.1 llA sepip era ot eb yllaciluardyh deset ot 6.3.6.4 etaluclaC wolf seititnauq deriuqer ni
etisiuqer erusserp yb eht reilppus and tset stroper smetsys and gnihctam pmup .seiticapac
era ot eb .deniatbo
6.3.6.5 Establish mumixam seiticolev elbatpecca
6.3.5 Establish fi yna laiceps stnemeriuqer era
ni metsys and etaluclac gnihctam epip ezis and
desolcsid yb eht evoba serudecorp and fi yeht
etacidni ti ni eht .margaid
tcilfnoc htiw standards yllamron dewollof yb
sub srotcartnoc ro .sredliub etaitinI serudecorp
ot evloser stniop fo ecnereffid and niatbo -tuo 6.3.6.6 ekaM tsrif redro etamitse fo elbaborp
standing .noitamrofni straight epip shtgnel and citats ,sdaeh list
sgnittif and etaluclac elbaborp wolf .ecnatsiser
63.6 sihT noitaluclac shall eb tpek rednu weiver as
Preparation of Flow Diagrams
eht ngised is .dessergorp fI eht metsys -siser
hctekS elgnis enil wolf diagrams -tacidni ecnat is rehgih than ,elbatpecca eht epip serob
6.3.6.1
gni pumps, yrenihcam units and yrallicna units shall eb deredisnocer and eht noitaluclac detsujda
deificeps ( ees .giF 1 >. ehT pumps taeh -xe litnu eht stluser era .yrotcafsitas
,sregnahc ,cte era ot eb elbapac fo gninoitcnuf
nehw eht ship is demmirt ro/dna detsil ot 6.3.6.7 Results deniatbo shall eb dekcehc htiw
deificeps .stimil an cimonoce sisylana fo eht tsoc fo gnipmup eht
ytitnauq deriuqer htiw suoirav wolf ecnatsiser
6.3.6.2 Add dnegel and a list fo slobmys and pumps and epip ezis ot erusne yeht era
snoitaiverbba hcihw shall eb desu ot yfitnedi .elbitapmoc
epip enil .sgnittif slobmyS desu shall mrofnoc
ot tnevaler naidnI Standards.
6.3.7
Preparation of Isometric Sketches
6.3.6.3 Add deificeps sguittif ot ,margaid gniyap
eud drager ot serutaef denoitnem erehwesle ni 6.3.7.1 wolF paths nac eb ylidaer desilausiv and
this standard hcihw shall peek wolf ecnatsiser gnipip tuoyal yllareneg dediced yb snaem fo
ot eht muminim rof eht epip erob ezis detpoda hcus sehcteks hcihw nac eb yratnemelppus and/
and wolla laitnereferp ,wolf rof ,elpmaxe hguorht ro evitanretla ot wolf diagrams and gnipip
sessap-yb erehw .deriuqer tnemegnarra drawings.
DQ
SCREWED LIFT VALVE
99 3-WAY AUTO TEMPARATURE
t CONTROL VALVE
-# THROTTLING PIECE
NOZZLE COOLING
AIR SEPERATOR

COOLING PUMPS
OhR
FLOW
l
1.tcrF CITAMEHCS TNEMEONARRA OF RETAWHSERF GNILOOC METSYS
5