IS 11335: Cast iron gate valves for use in marine pipe work system

15 Pages·1995·1.5 MB·English

by  Bureau of Indian Standards

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“The Right to Information, The Right to Live” “Step Out From the Old to the New”
IS 11335 (1995): Cast iron gate valves for use in marine
pipe work system [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””ै”
Bhartṛhari—Nītiśatakam
“Knowledge is such a treasure which cannot be stolen”

SI 53311 : 1995

( y?;tr g;r*wv) r
Indian Standard
SHIPBUILDING- CASTIRONGATEVALVES
FORUSEINMARINEPIPEWORK
SYSTEM- SPECIFICATION
( First Revision )
UDC 629-12-061 : 621.646.5 [ 669.13 ]

@ BIS 1995
BUREAU OF INDIAN STANDARDS
MANAK BHAVA~N, 9 BAHADUR SHAH ZAFAR MARO
NEW DELHI IlOO
February 1995 Price Group 5
gnidliubpihS lanoitceS ,eettimmoC ET 17
FOREWORD
sihT naidnI dradnatS ( tsriF noisiveR ) was detpoda yb eht uaeruB fo naidnI Standards, retfa eht
tfard dezilanif yb eht gnidliubpihS lanoitceS eettimmoC had neeb devorppa yb eht tropsnarT
gnireenignE noisiviD .licnuoC
sihT standard was tsrif issued ni 1984 and is eno fo a seires fo naidnI Standards no sevlav rof
esu ni eniram krowepip .smetsys nI eht noitaraperp fc eht 1984 ,noisrev elbaredisnoc assistance
had neeb devired morf AMSB 65 : traP 1 : 1975 snoitacificepS‘ rof lareneg esoprup and muelortep
yrtsudni sevlav rof esu in eniram krowepip smetsys : yrammuS and ,noitacilppa traP 1 Cast nori
etag ,’sevlav issued yb eht hsitirB Standards noitutGsnI ( ISB .j ehT tneserp noisiver has neeb
nekatrednu ni eht thgil fo ecneirepxe deniag and stnemmoc deviecer morf gnidliubpihS .yrtsudnI
nI this noisiver ecaf ot ecaf snoisnemid rof sezis DN 50 ot DN 300 evah neeb degnahc rof NP 10
and NP 16 sevlav as rep eht tnerruc ecitcarp ni shipping yrtsudni and on egnahc has neeb edam
rof rehgih .sezis nI eht 1984 noisrev on secnarelot erew deificeps no ecaf ot ecaf snoisnemid tub
ni this desiver standard secnarelot evah neeb deificeps hcihw era desab no SI 780 : 1984
noitacificepS< rof eciuls sevlav rof retaw skrow sesoprup ( 50 ot 300 mm ezis ) ( htxis revision )’
rof sezis DN 50 ot DN 300 rof NP 10 and NP 16 .sevlav secnareloT no rehgih sezis fo
NP 10 and NP 16 sevlav and all sezis NPfo 25 sevlav era desab no SB 6150 : 1980 noitacificepS‘ rof
tsac nori etag .’sevlav ,oslA ni this noisiver citnetsua edarg stainless leets lairetam has neeb
deificeps rof aes retaw .snoitacilppa
ehT eettimmoC elbisnopser rof eht noitaraperp fo this standard is nevig ni xennA A.
roF eht esoprup fo gnidiced rehtehw a ralucitrap tnemeriuqer fo this standard is deilpmoc htiw
eht lanif ,eulav devresbo ro ,detaluclac gnisserpxe eht tluser fo a tset ro ,sisylana shall eb
dednuor ffo ni ecnadrocca htiw SI 2 : 1960 seluR‘ rof gnidnuor ffo laciremun seulav ( revised )‘.
ehT rebmun fo tnacifingis secalp deniater ni eht dednuor ffo eulav dluohs eb eht emas as that fo
eht deificeps eulav ni this standard.
1s 11335: 1995
Indian Standard
SHIPBUILDING- CASTIRONGATEVALVES
FORUSEINMARINEPIPEWORK
SYSTEM - SPECIFICATION
( First Revision )
SECTION 1 GENERAL 7304 ( traP 1 ) : edoC fo ,noitacirbaf installa-
1978 noit and gnitset fo salt retaw
1 EPOCS
gnipip metsys rof draobpihs
:esu traP 1 lareneG -eriuqer
sihT naidnI dradnatS seificeps ,sepyt lanimon
stnem
,serusserp ,erutarepmet lanimon ezis ,segnar
mumixam gnikrow snoitidnoc and .slairetam
7608 : 1987 rohpsohP eznorb eriw rof
2 SECNEREFER- lareneg gnireenigne sesoprup
( Jirst
2.1 ehT gniwollof naidnI Standards era revision )
yrassecen stcnujda ot this standard: 7811 : 1985 rohpsohP eznorb sdor and
bars tsrif{
SI .oN Title revision )
28 : 1985 rohpsohP eznorb stogni and 7814 : 1985 rohpsohP eznorb teehs and
pirts
castings htruof( (firsr revision )
revision )
210 : 1978 yerG nori castings ( driht 9866 : 1981 Marking metsys rof sevlav
revision ) 10569 : 1983 muinimulA eznorb sdor and
305 : 1981 muinimulA eznorb stogni and bars
castings (
second revision ) 11218 : 1984 eniraM evlav hand sleehw
306 : 1983 niT ez’norb stogni and -tsac
ings ( third revision ) 3 YGOLONIMRET
318 : 1981 dedaeL nit eznorb stogni and
castings ( secon d revision ) roF eht esoprup fo this standard eht gniwollof
snoitinifed shall .ylppa
554 : 1985 snoisnemiD rof epip sdaerht
erehw erusserp thgit stnioj
3.1 IanimoN eziS ( DN )
era deriuqer no eht sdaerht
(
third revision ) A laciremun noitangised fo ezis hcihw is
1570 ( $t;“;P ) : seludehcS rof thguorw :sleets nommoc ot all stnenopmoc ni a gnipip metsys
traP 5 sselniatS and taeh rehto than stnenopmoc detangised yb edistuo
gnitsiser sleets (
second .retemaid tI is a tneinevnoc dnuor rebmun rof
revision ) ecnerefer sesoprup and ti is yllamron ylno
5788 : 1986 norI castings htiw ladiorehps ylesolc detaler ot gnirutcafunam .snoisnemid
ro raludon etihparg rof -serp
erus gniniatnoc parts rof esu 4 EVLAV SEPYT
at detavele serutarepmet
ehT sevlav shall eb fo eht dilos egdew epyt htiw
(
first revision ) degnalf ydob .sdne
6157 : 1981 evlaV noitcepsni and tset
5 SUMMARY FO SEVLAV
(first revision )
6392 : 1971 leetS epip Aanges elbaT 1 sevig a vrammus htiw drager ot lanimon
6912 : 1985 reppoC and reppoc yolla erusserp and lanimon ez& rof sevlav hcihw lliw
gnigrof kcots and sgnigrof ni lareneg teem eht- sdeen fo eht gnidliubpihs
( .yrtsudni
first revision )
1
IS 11335 : 1995
Table 1 Summary of Valves 7.3 For serutarepmet pu ot C°021 the gnikrow
serusserp nevig ni elbaT 2 nac ylno eb desu ni
( CZazrse 5 ) smetsys where the test erusserp does ton exceed
1.5 semit the gnikrow .erusserp ehT resu llahs
Nominal Pressure Nominal Size
eton that there are yrotutats selur dna -aluger
NP DN
snoit that eriuqer test serusserp ni excess of
bar” mm
5.I semit the gnikrow .erusserp tA serutarepmet
10 50 ot 700t evoba 120% gnikrow serusserp evah neeb
I6 50 ot 500 detimil so as ot niatbo a gnikrow/tset erusserp
25$ 50 ot 300 oitar of 2 : 1 as a muminim ni noitidda ot
‘I bar = 100 kPa gnikat tnuocca of the noitcuder ni lacinhcem
TFor lanimon sezis woleb 200, NP 16 sevlav yam seitreporp htiw esaercni ni .erutarepmet
osla eb .desu
ladiorehpS$ etihparg ;sac nori ylno ( <es 20.2 .) 7.4 nI order ot erusne that the test erusserp of
1.5 semit the lanimon erusserp gnitar of the
evlav si ton exceeded the resu llahs redisnoc
6 NOMINAL SIZES ( DN )
test serusserp deriuqer for noitcurtsnoc dna
ehT egnar of lanimon sezis llahs eb as :swollof cidoirep yevrus ,dna fi ,yrassecen esu a evlav
50, 65, 80, 100, 125, 150, 200, 250, 300, 350, of a rehgih .gnitar
400, 450, 500, 600 dna 700 .mm
8 SERVICE R%STRICTIONS
SECTION 2 PRESSURE/TEMPERATURE
8.1 sevlaV ot siht dradnats yam eb deredisnoc
RATINGS AND SERVICE RESTRICTIONS
for esu as swollof nihtiw the stimil of elbaT 2.
7 PRESSURE/TEMPERATURE RATINGS
8.1.1 yerG cast nori sevlav htiw copper yolla
7.1 sevlaV llahs eb dengised ot eb at tsael :sgnicaf
elbapac of gnidnatshtiw the -arcpmet/erusserp
erut sgnitar nevig ni elbaT 2. erehW sevlav are )a maetS pu ot gnikrow serusserp of 10 rab
( I MPa ) ( see 8.2 dna 8.4 ;)
desu ni niatrec snoitacilppa snoitcirtser llahs
eb desopmi ni ecnadrocca htiw 8. b) relioB feed pu ot gnikrow serusserp of
10 rab ( aPMI ) ( see 8.2 dna 8.4 ;)
7.2 ehT erusserp sgnitar nevig ni elbaT 2 are
mumixam elbissimrep gnikrow .serusserp erehW )c liO pu ot gnikrow serusserp of 10 rab
a metsys si tcejbus ot noitaslup the resahcrup ( 1MPa ) dna serutarepmet of ;C°021
lfahs redisnoc the ytilibasivda of gniylppa na
etairporppa gnitared factor. nI the case of yerg 4 r.A pu ot gnikrow serusserp of 10 rab
cast nori siht gnitared llahs eb at tsael 25 ( 1MPa ) dna serutarepmet of 650C

.tnecrep ( see 8.2 ;)

Table 2 Pressure/Temperature Rating
( Clause 7.1 )
-
Nominal All Valves All Valves with Valves with Copper
Pressure with Resilient Copper Alloy Alloy Facing Up to
Seats Facings or All and Including
Iron Trim Nominal Size 300
erutarepmeT “C
- 10 ot *56 - 10 ot 120 150-r 180 200 220
mumixaM elbissimrep gnikrow erusserp Irab ( eguag )
( ees osla 19.1 )
10 10 IO 7.5 7.5 - -
16 16 16 12 12 12 -
25s 25 25 19 19 19 19
*‘This si a muminim emeriuqer .tI tcejbuS ot ,tnemeerga gnidncpcd ho gnilaes ,iairetam rchgui serutarepmet
yam eb dettimrep ( ees 21.3 .)
reppoC/- yolla decaf sevlav .ylno
$1 rab = 100 kPa.
ladiorehpsf etihparg tsac nori ylno ees 20.2.
2
Is 11335 : 1995
)e hserF ;retaw and 8.4 etaG sevlav gniylpmoc htiw eht -eriuqer
stnem fo this standard shall ton eb desu rof
)f aeS ,retaw rehto than edispihs -acilppa
tcerid tnemhcatta ot .sreliob
,snoit tcejbus ot ytilibatius fo mirt
slairetam ( ees 21.1 .)
SECTION 3 DESIGN FEATURES
8.1.2 yerG tsac nori sevlav htiw nori-lla .mirt
9 BODY ENDS
liO up ot gnikrow erusserp fo 10 rab ( 1 MPa )
and serutarepmet fo 120°C. 9.1 sevlaV shall evah largetni degnalf ydob
sdne ni ecnadrocca htiw eht stnemeriuqer fo
8.1.3 yerG tsac nori sevlav htiw tneiliser
SI 6392 : 1971.
seatings ( ees 18.2 :)
a> 9.2 erehW kcab secaf- fo eht segnalf era ton
,liO rehto than citamora and detanegolah
lellarap ot eht tnioj ecaf nihtiw 1” yeht shall eb
,snobracordyh up ot gnikrow serusserp fo
tops .decaf
10 rab ( 1 MPa ) and serutarepmet fa
65°C ( ees 8.2 and 21.2 ;)
10 FACE TO FACE DIMENSIONS
b) aeS ,retaw rehto than edispihs -acilppa ecaF ot ecaf snoisnemid and secnarelot fo etag
,snoit tcejbus ot ytilibatius fo mirt sevlav shall eb as ni-deificeps elbaT 3.
slairetam ( ees 21.1 ;)
elbaT 3 Face to Face Dimensions A of
C> hserF retaw ( ees 21.2 ;) and
Gate Valves
d) riA up ot gnikrow erusserp fo 10 rab
( ciuusc 10 )
1( MPa ) and serutarepmet fo 65°C ( ees
8.2 and 21.2 .)
8.1.4 ladiorehpS cihparg tsac nori sevlav htiw
reppoc yolla :sgnicaf
)a maetS ( ees 8.2 and 8.4 ;)
)b relioB deef ( eeT 8.2 and 8.4 ;)
)c ;liO
)d hserF ;retaw
)e aeS ,retaw gnidulcni edispihs
applica-
,snoit tcejbus ot ytilibatius fo mirt
slairetam ( ees 21.1 ;) and
)f riA ( ees 8.2 .)

8.1.5 ladiorehpS etihparg tsac nori htiw
tneiliser seatings ( ees 18.2 :) k--A4
)a ,liO rehto than citamora and detanegolah
snobracordyh up ot a erutarepmet fo
65°C ( ees 8.3 ;) Nominal Nominal Pressure
Size T---_- ---y
)b aeS ,retaw gnidulcni edispihs -acilppa DN PN 10 PN 16 PN 25
,snoit tcejbus ot ytilibatius fo mirt Face-to-face
slairetam ( ees 21.1 ;) Dimensions A
mm mm
mm
)c hserF retaw ( ees ;).2.12 and os
15Oh 2 150*2
)d riA up ot serutarepmet fo 65°C ( ees 8.2 65 170 f 2 170 * 2
180 f 2
and 21.2 .)
1% :zE: 190 f2
125 200&2 200*2 381 a3
8.2 noitnettA is drawn ot eht snoitcirtser ni eht
150 210 * 2 210 f 2 403rt3
esu fo tsac nori ni niatrec smetsys desopmi yb 200 230 f 2 419 i 3
yrotaluger .seidob 250 250 i 2 457 i 3
300 270 i 2 502 f 1
8.3 erehW tneiliser detaes sevlav era desoporp 350 381 f 3
400 406 f 3
ot eb desu as lio leuf ,sevlav tcerid ro etomer
450 432 * 3 432 f 3
,detarepo ro as erif main ,sevlav eht ngised z: 455078 ff 34 457 St 3
shall eb devorppa yb eht yrotalugeR ro
yrotutatS ydoB .denrecnoc 700 610 f 4
1s 11335 : 1995
maerts-nwod seat fi the tneiliser slairetam
11 BODY TAPPINGS
are deredner .evitareponi roF lacipyt
nehW a ydob gnippat si deificeps ti llahs ,tnemegnarra see .giF .1
ylpmoc htiw the stnemeriuqer of SI 554 : 1985.
A lellarap threaded gulp htiw a washer face
llahs eb .dettif
12 BODY OT TENNOB CONNECTIONS
tennob-ot-ydoB snoitcennoc llahs eb nogaxeh
headed stlob or screws htiw stun or sduts or
duts stlob htiw .stun
13 DNAH SLEEHW
dnaH sleehw llahs ylbareferp eb of the eniram
nrettap gnimrofnoc ot SI 11218 : 1984.
14 SMETS
metS llahs eb of edisni screw gnisir-non mets
mrof sselnu the edistuo screw gnisir mets si
.deificeps
15 METS GNILAES
metS gnilaes of sevlav elbatius for esu at -epmet
serutar ni excess of C°56 llahs eb of *detlob
dnalg .mrof erehW sevlav are deilppus htiw
ladiorot gnilaes gnir ( ‘0’ gnir ) :pyt of ,laes FIG. 1 TYPICAL RESILIENTS EAT ARRANGEMENT
yeht llahs eb dedivorp htiw a repiw mets ring IN ACCORDANCE WITH 18.2 (a)
denoitisop evoba the laes ot tneverp ssergni of
ngierof .rettam )b ehT ti!eiliser gnilaes lairetam llahs eb
dedluom otno or otni the wedge. ydoB
16 KCAB TAES seat sgnir are ton yllamron deilppus htiw
these .sevlav esehT sevlav llahs ton eb
sevlaV htiw gnisir smets llahs evah a kcab
desu no lio metsys nihtiw the yrenihcam
gnitaes ecafrus ni the tennob ot tcatnoc a
space or erif niam smetsys ( see osla 21.2 ).
gnidnopserroc seat no the mets nehw the evlav
roF lacipyt ,tnemegnarra see .giF 2.
si ylluf .nepo
17 NOITISOP SROTACIDNI

sselnU esiwrehto ,deificeps sevlav htiw -non
gnisir mets llahs eb deilppus htiw a noitisop
.rotacidni
18 SEATS AND FACINGS
18.1 sselnU esiwrehto ,deificeps copper yolla
faced sevlav llahs eb .deilppus
18.2 erehW tneiliser seated sevlav are deificeps
yeht yam eb rehtie of the gniwollof smrof
sselnu a ralucitrap mrof si deificeps yb the
resahcrup ( see 8.3 :)
a) ehT tneiliser gnilaes stnenopmoc llahs eb
detaroprocni otni the ngised of the wedge.
ehT tneiliser tnenopmoc llahs eb dengised
so as ot sserpmoc nwod ot the level of
the copper yolla seats nehw the wedge si
ni the desolc noitisop dna osla ot evig
thgit latem-ot-latem ffo-tuhs no the
FIG. 2 TYPICAL RESILIENTS EAT ARRANGEMENTS
‘*The term 6bolted’i ncludes bolts, screws, studs and
associated nuts. IN ACCORDANCEW ITH 18.2 )b(
4
IS 11335 : 1993
19 OPERATION ladiorehps etihparg tsac nori detceles shall eb
as :swollof
19.1 sevlaV~ shall eb elbatius rof leehwdnah
noitarepo at tsael against eht erusserp -nereffid )a muminiM elisnet htgnerts : 370 ;emm/N
tials deificeps ni elbaT 4. roF sezis retaerg than
300 mm and rof rehgih erusserp slaitnereffid )b muminiM noitagnole : ,/021 no a eguag
eht rerutcafunam shall eb demrofni ni redro htgnel fo 56-5 0’5/z
ot erusne eht ytilibatius fo eht evlav rof eht
erehw ,S is eht lautca ssorc noitces fo
.noitacilppa
eht tset .eceip
Table 4 Pressure Differentials
( Clause 19.1 ) 21 INTERNAL PARTS OTHERS THAN
WEDGES, IN CONTACT WITH THE LINE
Nominal Size Pressure Differentials FLUID
DN Bar*
up ot 100 10 ehT slairetam desu shall eb ni ecnadrocca htiw
eht gniwollof :snoitacifilauq
evobA 100 dna up ot 200 6
evobA 200 dna up ot 300 4
21.1 roF aes retaw snoitacilppa eht slairetam
I* rab = 100 kPa.
fo lanretni parts hcus as lanretni ,sgninetsaf
19.2 sevlaV shall eb deilppus rof tcerid manual ,smets egdew gnicaf rings and seats, rehto than
hand leehw noitarepo unless esiwrehto .deificeps tneiliser seats, shall ylbareferp eb detceles morf
ehT ecrof deriuqer at eht hand leehw mir shal I esoht nevig ni elbaT 5 tub rehto slairetam
ton deecxe 350 N. deificeps ni SI 7304 ( traP 1 ) : 1978, yam eb
desu dedivorp yeht era elbatius rof eht .ytud
roF sevlav evoba lanimon ezis 300, raeg epyt
rotarepo yam eb .deriuqer nI rehtie epyt fo
noitarepo eht gnisolc noitcerid fo eht dnah Table 5 Sea-Water Material Application
leehw shall eb ni a esiwkcolc noitcerid nehw
( Clause 21.1 )
gnicaf eht hand .leehw
Mnterial IS No. Grade or Designation
19.3 erehW rotautca detarepo sevlav era -iceps muinimuilA exnorb 305 : 1981 ,BA
,deif hcihw era osla deriuqer ot eb elbapac fo
6912 * 1985
manual ,noitarepo this shall eb .deificeps
10569:1983 Cu lA 10 eF 5 Ni 5
19.4 erehW cificeps stnemeriuqer rof gnikcol rohpsohP eznorb 28 : 1985 edarG 2
eht evlav ni desolc/laitrap/nepo snoitisop ,tsixe 7814 : 1985 edarG II
eseht shall eb deificeps yb eht .resahcrup 7608 : 1987 edarG I
7811 : 1985
19.5 erehW lacol noitarepo fo a evlav is ton
latemnuG 306 : 1983
,elbisaef eht resahcrup shall yficeps eht -eriuqer
stnem fo dednetxe mets/eldnips rof etomer 318 : 1081 LTB,
.noitarepo LTB,
sselniatS !eets 1570 ( Pla;j55 ) : X07Crl8Ni 9
( citinetsuA edarg )
NOITCES 4 SLAIRETAM
20 ,SEIDOB BONNETS, YOKES, STUFFING 21.2 sevlaV rof hserf retaw ro desserpmoc ria
BOXES AND WEDGES snoitacilppa shall evah anretni parts fo reppoc
20.1 Unless ladiorehps~ etihparg tsac nori is yolla ro sselrriats .leets tneiliseR seats shall ton
deificeps yb eht ,resahcrup sevlav ot NP 10 and eb desu rof hcus .snoitacilppa
NP 16 shall eb deilppus ni yerg tsac .nori ehT
htgnerts scitsiretcarahc fo eht edarg fo yerg 21.3 roF tneiliser detaes sevlav eht tneiliser
tsac nori ,detceles etairporppa ot eht standard stnenopmoc shall eb fo ’elirtin‘ .rebbur -retlA
egnalf ,ssenkciht shall ton llaf woleb 180 .2mm/N evitan slairetam yam eb desu tcejbus ot -eerga
noitnettA is drawn ot SI 210 : 1978. tnem neewteb eht resahcrup and eht
.rerutcafunam
20.2 sevlaV ot NP 25 and, nehw deificeps yb
eht ,resahcrup esoht ot NP OI and NP 16 shall 22 SEALS AND GASKETS
eb deilppus ni ladiorehps etihparg tsac nori
gniylpmoc htiw eht stnemeriuqer fo SI 5788 : 22.1 sevlaV shall evah seals and gaskets fo
1986. ehT lacisyhp seitreporp fo eht edarg fo lairetam elbatius rof all eht gniitollof