IS 12987: Cast iron detachable joints for use with asbestos cement pressure pipes (light duty)

12 Pages·1991·1.3 MB·English

by  Bureau of Indian Standards

इंटरनेट मानक
Disclosure to Promote the Right To Information
Whereas the Parliament of India has set out to provide a practical regime of right to
information for citizens to secure access to information under the control of public authorities,
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
to the public, particularly disadvantaged communities and those engaged in the pursuit of
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.
“जान1 का अ+धकार, जी1 का अ+धकार” “प0रा1 को छोड न’ 5 तरफ”
Mazdoor Kisan Shakti Sangathan Jawaharlal Nehru
“The Right to Information, The Right to Live” “Step Out From the Old to the New”
IS 12987 (1991): Cast iron detachable joints for use with
asbestos cement pressure pipes (light duty) [MTD 6: Pig
iron and Cast Iron]
“!ा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”

IS12987 : 1991
Indian Standard

CAST IRON DETACHABLE JOINTS FOR USE
WITH ASBESTOS CEMENT PRESSURE PIPES
(LIGHT DUTY)-SPECIFICATION
YTY?h WW
q?admfi*mrlT~(~m~rf)Bw~rrg~
mi,aii 3 f+ibtF +k - mfk
.
UDC 621’643’412 [ 669’13 ] : 621.643’2-986 [ 666’961 ]

8 BIS 1991
BUREAU OF INDIAN STANDARDS
MANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG
NEW DELHI 110002 .
hcraM 1991 Price Group 3
giP norI and Cast norI lanoitceS ,eettimmoC DTM 6
FOREWORD
sihT naidnI dradnatS was detpoda yb eht uaeruB fo naidnI Standards, retfa eht tfard dezilanif yb eht
giP norI and Cast norI lanoitceS eettimmoC had neeb devorppa yb eht lacigrullateM gnireenignE
noisiviD .licnuoC
ehT laitnesse stnemeriuqer rof yna mrof fo tnioj era ,yticilpmis ytilibailer and .ytilibixelf suoiraV
sepyt fo stnioj era desu rof gninioj AC .sepip esehT stnioj yltsom etaroprocni rebbur gnilaes rings
ni rieht .ngised rebbuR is yllareneg detpecca as eht laedi gnilaes muidem rof erusserp ;stnioj ni
noitidda ot gnitrapmi ,ytilibixelf ti selbane eht tnioj ot withstand noitarbiv morf ciffart and rehto
.secruos ,oslA ni eht esac fo deirrub ,sepip eht snoitidnoc hcus as ,erutsiom darkness and noisserpmoc
era laedi rof eht noitavreserp fo .rebbur
nI elbahcated ,stnioj eht stnenopmoc esirpmoc fo a tsac nori ertnec ralloc and owt segnalf rehtegot
htiw owt rebbur rings. ehT ylbmessa is detlob .rehtegot tI dluohs eb deton that eht stnioj era ton
dednetni ot tsiser and ,tsurht and ti is laitnesse ot yletauqeda rohcna dne spac and .sdneb
ecnerefeR yam eb edam ot SI 1363 ( traP 1 ) : 1984 nogaxeH‘ daeh ,stlob swercs and nuts fo tcudorp
edarg C : traP 1 nogaxeH daeh stlob ( ezis egnar M5 ot M36 ) ( dnoces revision )’ and SI 1363
( traP 3 ) : 489I traP‘ 3 nogaxeH nuts ( ezis egnar M5 ot M36 ) ( second revision )’ rof esu fo stlob
and nuts htiw eseht stnioj and ot SI 12988 : 1990 rebbuR‘ gnilaes rings rof CID stnioj rof thgil ytud
AC sepip - lanoisnemiD ’stnemeriuqer rof esu fo rebbur gnilaes rings htiw CID .stnioj
ylnO laitnesse snoisnemid deriuqer rof reporp gninoitcnuf and ytilibaegnahcretni fo stnioj evah neeb
deificeps ni this standard.
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 deiticeps eulav
ni this standard.
Is 7892i : 1991
I ‘. .“, ’ Indian Standard
A .
CAST IRO?$D ETACHABLE JOINTS FOR USE
WITK ASBESTOS CEMENT PkbURE PIPES
(LIGHT DUTY)- SPECIFICATION:
.,
.I,: .
1 EPOCS 5.3 llenirB ssendraH stseT
1.1 sihT standard srevoc eht stnemeriuqer rof tsac gnikceilc“ioF eht 11enirB hardness stset deificeps
nori elbahcated stnioj ot eb desu htiw sotsebsa ni 4.3 shall eb deirrac tuo no eht tset bars desu rof
tnemec erusserp sepip“ (- ytud,thgiJ ) gnimrofnoc eht stset ni 5.2. ehT tset shall eb deirrac tuo ni
ot SI 9627 : 1980. ecnadrocca wnh 1s 1500 : 1983.
2 ECNEREFER 5.4 tseteR
2.1 ehT naidnI Standards derrefer ot ni this fI yna tset ecei;I gnitneserper a tol sliaf ot pass
standard era detsil ni xennA A. eht tset ni eht tsrif ,ecnatsni owt lanoitidda stset
shall eb edam no tset seceip edam morf eht emas
3 YLPPUS FO LAIRETAM latem desu morf eht emas .tol dluohS rehtie fo
eseht lanoitidda tset seceip liaf ot pass eht ,tset eht
3.1 ehT lareneg stnemeriuqer gnitaler ot eht
toJ shall eb demeed as ton gniylpmoc htiw eht
ylppus fo lairetam shall eb as laid nwod ni
SI 1387 : 1967. standard.
4 ERUTCAFUNAM 6 CITATSORDYH TSET
4.1 ehT latem desu rof eht erutcafunam fo stnioj 6.1 citatsordyH tset yam eb deirrac tuo rof
shall eb fo etisiuqer ytilauq gnimrofnoc ot yna fo sralloc .ylno roF this tset eht ralloc shall eb
eht sedarg fo SL 210 : 1978. tpek ;rednu erusserp rof 15 ,sdnoces ;muminim ti
yam eb kcurts yletaredom htiw a 700 g .remmah
4.2 ehT suoirav parts fo elbahcated stnioj shall tI dluohs withstand eht erusserp tset tuohtiw
eb deppirts htiw all snoituacerp yrassecen ot gniwohs yna ,egakael gnitaews ro rehto stcefed .
diova gnipraw ro gniknirhs ,stcefed yehT shall fo yna .dnik ehT citatsordyh tset dluohs eb
eb eerf morf ,stcefed rehto than yna elbadiovanu detcudnoc erofeb gnitaoc eht ,ralloc as raf as
ecafrus snoitcefrepmi hcihw tluser morf eht .elbissop
dohtem fo erutcafunam and hcihw od ton tceffa
eht esu fo eht .stnioj yB tnemeerga neewteb eht 6.1.1 ehT ralloc shall withstand eht tset erusserp
resahcrup and eht ,rerutcafunam ronim stcefed deificeps ni elbaT 1 fo SI 9627 : 1980 rof eht class
yam eb .deifitcer fo sotsebsa tnemec erusserp sepip htiw hcihw yeht
era ot eb .desu nehW sralloc era deriuqer rof
4.3 ehT stnioj lla& eb hcus that yeht dluoc eb rehgih ,erusserp eht tset erusserp era tcejbus ot
,tuc dellird ro ~~&iitcanr nI esac fo ,etupsid eht laiceps tnemeerga neewteb eht resahcrup and eht
castings yam eb detpecca dedivorp eht hardness .rerutcafunam
derusaem no eht lanretxe denihcamnu ecafrus
seod ton deecxe 11enirB-eht hardness fo 215 .SBH 6.2 ehT rebmun fo samples deriuqer and eht
airetirc rof ytimrofnoc shall eb as debircserp ni
5 LACINAHCEM TSET xennA C.
5.1 lacinahceM stset shall eb deirrac tuo no -tsac 7 SNOISNEMID AND MASS
ings at eht tsom eciwt rep ydd gnirud -cafunam
.erut ehT stluser deniatbo era nekat ot tneserper 7.1 snoisnemiD rof eht tsac nori segnalf and
all eht stnioj fo all sezis edam gnirud eht .yad sralloc ot eb desu htiw sotsebsa tnemec erusserp
sepip fo SI 9627 : 1980 shall mrofnoc ot elbaT 1
5.2 elisneT stseT and elbaT 2 ylevitcepser rof eht lanimon dia DN
and ciass .deificeps
owT elisnet stset shall eb edam no bars tsac morf
eht emas latem ni ecnadrocca htiw eht dohtem NOTES
deificeps ni xennA .B ehT stluser fo eht stset
1 lanimoN retemaid fo elbahcated stnioj llahs refer
shall wohs a muminim elisnet htgnerts fo 150
ot eht gnidnopserroc lanimon retemaid .fo eht
MPa ( 15 ”mm/fgk .) sotsebsa tnemec erusserp .sepip
IS a981 : 1991
2 lanimoN retemaid of sotsebsa tnemec epip A- 7.2 retemaiD and htgnel fo stlob ot eb desu htiw
laciremun noitangised of ezis hcihw si 1common ot tsac nori segiialf: fo elbaT 1 shall eb as nevig ni
lla stnenopmoc ni a gnipip metsys other naht‘ -moc
elbaT 3.
stnenop detangised yb edistuo sretemaid or other
.snoisnemid tI si a tneinevnoc dnuor rebmun for 7.3 ssametamixorppA fo stnioj ( gnidulcxe rebbur
ecnerefer esoprup ylno dna si‘ ton detcejbus ot
rings and ,)’stlob detaluclac yb taking ’iht ytisned
gnirusaem dna si ton tnaem ot eb desu for the
esoprup of .noitaluclac fo tsqc nori as V5 !mc/gk is n;evig ni elbaT 4, rof
.noitamrofni
3 Cast nori elbahcated stnioj ot lanimon retemaid
7.4 ehT reteaqaid fo tnemegagne dne fo stnioj
hecruosm cases naht deliated 200 mm snoisnemid yam osla ob dna .derutcafunam secnarelot yam In shall, hctam eht kaid’nopiterroc ’ edis& retemaid
eb as yllautum agreed ot neewteb the resahcrup dna fo sotsebsa tnemec erusserp sepip fo etairporppa
the .reilppus sessalc gnimrofnoc ot SI 9627 : 1980, as .tnaveler
elbaT 1 Cast norI egnatP
( Clause 1’7 1
NUMBER OF H@LES=A
EQUALLY SPACEOm
NQITCES AA
DEGRALNE

Ds - edistuO sretemaid of CA .sepip
llA snoisnemid in millimetres.
Nbmirkl Cl&s E&r. :;1 yg&f Outside Dia Imsfde Bolt Interns1 Holes
Dia 0PPlrnge Dfa of Circle R$ugf
Np P. bia
DN’ *Yipe 'W Do c'" io? d- A'
50 1; 69 20 115.5 73 125’5 5 16 j
50 69 20 119.5 73 125.5 5 16 3
tX 1; 2 f :: 114466-’55 110033 115544-’0O *z 1166 33
100 1: 119 ;; 167.5 123. 177:5 2 16 3
IO0 122 170’5 136 1?0)5 16 3 .
125 190% 199-O 4
125 lo’ :: :; 193.0 :4: 2~2.0 ; :f 4
150 169. 217’0 173 227.0 5 16 4
150 1: 173 3’: 221’0 177 231 *O 5 16 4
200 272’0 223 5
200 1: iiz ;: 2850 234 E!Z 5 ;: t
.*This’is for. noitamrofni pnly, revewoh the lanretni epols of the egnalf dna retuo epols of the ralloc llahs eb
hcus that there si on ecnerefretni gnirud .ylbmessa
roFt noitamrofni .vlno
1s 12987 : 1991
Table 2 Cast Iron Collar
( clause’ 7.1 )
.d .
All dimensions in millimetres.
Nominal Class Bxtzr;i;;la of Inside External Dia Collar Thick- Radius of
Diameter Din., ta Centre Width ness Curvature
RN Da DI l&C WC I! !iR
50 5 69’0 73’0 98’0 34 0 85 30
50 10 69’0 73.0 98’0 34’0 8.5 30
80 ‘5 99.0 10390 128’5 38.0 9.0 34:
$0 10 990 103.0 1285 38’0 9’0 34
100 5 119.0 123’0 149’5 420 9’0 5Q
100 10 122’0 126.0 152’5 42’0 9’0 50
125 5 144’0 14&O 172’0 46’9 9’0 7s
125 10 147.0 151.0 175.0 46-O 9.0 75
150 5 169’0 173’0 199 0 50.0 9.5 80
150 10 173’0 177’0 203’0 50’0 9’5 80
200 5 2190 223.0 249’0 56.0 10-o 115
200 10 230’0 234.0 260’0 56.0 10-o 115

Table 3 Details of Bolt Table 4 Mass of Joint ( Approximate )
( Clause 7.2 ‘) ) (.mwqS7.3‘) ,: ,,;‘, ,i
Nominal Class &lass of Joint ( Approximate )
Diameter ( Excluding Rubber Rings and
DN Bolts )
mm kg
1 50 5, 10 1’7
All dimension3 in millimerres. 80 5, 10 2’9
Nominal Class Nominal Minimum Preferred 100 5 3’8 s
Dia Dia of Bolt Length of Bolts
DN do L 100 10 3.9
50 5, 10 12 75 125 5 4’8
80 5, 10 12 90
‘125 10 5.0
100 5, 10 12 100
125 5; 10. 12, 100 150 5 61
150 5, 10 12 110 150 10 6’2
200 5, 10 16 120
200 5 8.7
NOTE - The thread length of bolls shall conform
ot the requirement speciaed in the relevant pa Irt of 200 10 9‘4
IS: 1363.
3
SI 12987 : 1991
8 TOLERANCES has a rat ro ralimis ,esab ti shall eb htooms and
suoicanet and drah hguone ton ot wolf nehw
ehT secnarelot no eht suoirav snoisnemid
8.1 desopxe ot a erutarepmet fo 66°C tub ton os
shall eb as :swollof
elttirb at a erutarepmet fo 0°C as ot pihc ffo nehw
debircs ylthgil htiw a .efinknep
Dimensions Tolerances, II&
Wall ssenkciht fo ralloc - ( 50.0fl *t ) 9.5 nehW eht parts fo eht tnioj era ot eb desu rof
deroC seloh and rehto 2f gniyevnoc elbatop ,retaw eht edisni gnitaoc shall
snoisnemid ton niatnoc yna tneutitsnoc elbulos ni hcus retaw
ro yna tneidergni hcihw dluoc trapmi yna etsat
dellirD seloh f 1.5
ro ,ruodo ,reveostahw ot eht elbatop retaw retfa
l t = the dradnats ssenkciht of .ralloc noitazilirets and ylbatius washing tuo eht mains.
ETON oN- timil for sulp ecnarelot si .deificeps 9.6 nI esac fo parts ( yllohw ro yllaitrap detaoc )
hcihw era yltcefrepmi detaoc ro erehw eht gnitaoc
9 COATING seod ton tes ro mrofnoc ot eht ytilauq deificeps
,evoba eht gnitaoc shall eb devomer and eht parts
9.0 retfA ,noitcepsni hcae trap fo tnioj shall eb .detaoc-er
detaoc as deificeps ni 9.1 ot 9.6.
10
9.1 gnitaoC shall ton eb deilppa ot yna trap SAMPLING’
unless its ecafrus is ,naelc yrd and eerf morf rust. l-.01 &3 stnemeriuqer rof sampling and airetirc
rof ytimrofnoc shall eb as nevig ni xennA C.
9.2 Unless esiwrehto deerga ot neewteb eht -rup
resahc and eht ,rerutcafunam all tsac nori parts
shall eb detaoc yllanretxe and yllanretni htiw eht 11 MARKING
emas ;lairetam eht parts gnieb detaeh-erp roirp ot
11.1 Each tnioj shall evah ,tsac depmats ro -ni;
latot noisremmi ni a bath gniniatnoc a ylmrofinu ylbiled detniap no ,ti eht gniwollof etatrporppa
detaeh rat/suonimutib ro rehto elbatius .esab
marks;
laoC-ETON tar dluohs ton eb desu ni cast nori )a ytitnedI fo eht ecruos fo ;erutcafunam
elbahcated stnioj desu htiw CA sepip for gniyrrac
elbatop water. )b ehT lanimon retemaid fo ;epip
9.2.1 ,ylevitanretlA eht gnitaoc no eht tsac nori )c Class ;ecnerefer
parts yam eb enod tuohtiw gnitaeherp htiw owt )d tsaL owt digits rof eht raey fo ;erutcafunam
staoc fo kcalb Japan gnimrofnoc ot epyT C fo and
SI 341 : 1973, fi .deerga ot at eht emit fo yriuqne
)e ynA rehto kram ,fi deriuqer yb eht
and .redro
.resahcrup
1‘, c
9.3 ehT gnitaoc lairetam shall tes yldipar htiw ehT lairetam yam ,osla eb dekram htiw eht
doog ecnerehda and shall ton elacs .ffo 11.1.1
dradnatS Mark, eht sliated rof hcihw yam eb
9.4 nI all secnatsni erehw eht gnitaoc lairetam deniatbo morf eht uaeruB fo naidnI Standards.
ANNEX A
._ .. _
( Clause 2.1 )
LIST OF REFERRED INDIAN STANDARDS
SI .oN Tir le I.5 No. Title
1978 yerG nori castings ( :0051 1983 dohteM rof 11enirB hardness tset
210: thirdrevision )
rof cillatem slairetam (
second
341 : 1973 \ kcalB Japan, sepyT A, B and C noisiver )
(first revision )
1387 : 1967 lareneG stnemeriuqer rof eht 4905 : 1968 sdohteM rof modnar sampling
ylppuS fo lacigrullatem slairetam 9627 : 1980 sotsebsA tnemec erusserp sepip
tsrif( revision ) ( thgil ytud )
4
SI 12987 : 1991
ANNEX B
( Clause 5.2 )
ELISNET TSET
l-B STSET ON SRAB FOR CI ELBAHCATED
denihcam ot evig a retemaid fo tuoba 20 ot 25 .mm
STNIOJ TSAC NI SAND SDLUOM
ehT sdne era detceles yb eht rerutcafunam ot tif
1.l-B ehT elisnet tset bars era ylreporp ,dedluom eht gnitset .enihcam .giF 1 shows eno hcus
eerf morf stcefed and era rehtie ,denihcamnu ro yrotcafsitas *ngised
llA snoisnemid ni .sertemillim
.GIF 1 ELISNET TSET NEMICEPS
ANNEX C
( Clauses 6.2 and 10.1 )
SAMPLI N G OF CAST IRON ELBAHCATED STNIOJ

l-C TOL A ralloc/tnioj gniliaf ot teem eht stnemeriuqer fo
yna fo eht ,stset shall eb dellac a evitcefed /tnioj
1.l-C nI yna ,tnemngisnoc all eht sralloc/stnioj ralloc
derutcafunam rednu ralimis snoitidnoc shall eb *
depuorg rehtegot ot etutitsnoc a .tol C-3.2 fI eht rebmun fo sevitcefed dnuof ni a tol
is less than ro lauqe ot eht gnidnopserroc rebmun
2.l-C selpmaS shall eb nekat and detset morf fo elbissimrep rebmun fo ,sevitcefed eht tol shall
hcae tol rof gniniatrecsa eht ytimrofnoc fo eht eb deredisnoc as gnimrofnoc ot eht stnemeriuqer
.tol fo eht standard, esiwrehto .ton
C-2 ELACS FO GNILPMAS elbaT 5 elacS fo gnilpmaS and elbissimreP
rebmuN fo sevitcefeD
C-2.1 ehT rebmun fo ,sralloc/stnioj ot eb delpmas
( Clause C-2.1 )
shall eb gnidrocca ot 1oc 1 and 2 fo elbaT 5.
esehT sralloc/stnioj shall eb nekat at modnar ( ees toL eziS elpmaS eziS elbissimreP Nn. fo
SI 4905 : 1968) . sevitcefeD
)N( )n( )a(
C-3 REBMUN FO STSET AND AIRETIRC up ot 500 8 0
FOR YTIMROFNOC 501 ot 1 000 13 1
C-3.1 ehT sralloc/stnioj detceles gnidrocca ot 1oc 1 1001 ot 3 000 20 2
and 1oc 2 fo elbaT 5 shall eb detset rof ,snoisnemid 00001ot1003 32 3
,secnarelot gnitaoc and citatsordyh erusserp .stset 10 001 and evoba 50 5