sri lanka valve standard 1184
TRANSCRIPT
SRI LANKA STANDARD 1184 : 1998
UDC 621.646.4: 665.72
SPECIT'ICETION T'ORVALVE FITTINGS FOR USE WITH
LIQUEFIED PETROLEUMGAS (LPG)CYLTNDERS
SRI LANKA STANDARDS INSTITUTION
SPECIFICATION FOR VALVE FITTINGS T'OR USE WITHLIQUEFIED PETROLEI.,\4 GAS (LPG) CYLINDERS
SLS ll84 : 1998
Copyright ResenedSRI LANKA STANDARDS INSTITUTION
No. 17r Victoriya Place,Elvitigala Mawatha,
Colombo 08,SRI LANKA
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SLS 1184 : 199E
SRI LANKA STANDARDSPECIFICATION FOR VALVE FITTINGS FOR USE WITH LIQUEFIED
PETROLEUM GAS (LPG) CYLINDERS
FOREl\'ORI)
I:Lr standard was approved by the Sectoral Committee on LP Gas Industry and was authorizedi-,- ai.,-puon and publication as a Sri I-anka Stand.ud by the Council of the Sd Lanka Standards:!i!l.ion on 1998-12-10.
:::i si.andard deals with valve fittings for use with liquefied petroleum gas cylinden.
ir :h purpose of deciding whether a particular requirement of this standard is complied with'lle iE3l \alue. observed ot calculated, expressing the result of a [est or ao analysis, shall be
='md.d off in accordance with CS l02 The number of significant places retained in the
3r:rii ofl value shall be the same as that of the specified value in this standard
Tlrr S:i I-anka Standards Institution gratefully acknowledges the use of the followilg
:sb{i.ations. in the preparation of this standard:
r lS 3?-17 : 1979 Specification for valve fittings for use with liqr.refied petroleum gascylinders wit}l more than 5 litre water capacity.Part II : Valve fittings for newly manufactured LPG cylinders.
r \lS 831 : 1986 Specifications for valves for use with domestic liquefiedpeaoleum gas (LPG) cylinders
I SCOPE
T!:Lr sandard specifies the requirements of materials, constxuction, performance and testing ofi:l\ e r-lnings for use with liquefied petroleum gas (LPG) cylinders.
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8661 : tSn SlS
SLS 1184: 1998
-l.: vdse outlet dimensions
-r:-t Tbe lalve outlet configuration, dimensions and machining tolerances shall be as give|I in
Fr:r'e 1.
r with LPC
elongation
licable, beI be madeepe as thebe agreed
ficles ard
G.
All dimensions in millimetres
FIGURE 1 - ValYe outlet dimensions
-1-1 S<r€s threads on the valye stem and in cylinder neck (Yalve inlet threads)
3l.1 T)pes of scrett threads
T-:e .. 3I\ e ir et shall be provided with any one of the two t)'pes of taper screw threads specified
= -1-r-1,1 or 3,3.1,2.
-L1.1.1 18.8 rllm nominal diameter DIN 477 valve sqew threadJ:,e lS.S mm nominal diameier valve screw thread shall be of right hand thread Whitworth form
-::1, 3qual to 1.814 mm, thread angle 550 and having a taper of 3:25 on diameter' The principat
::::re;rsions and limits on this screw thread shall be as given in Figures 2 and 3
-r-1.11 3/.+" 14 NCT valve screw thrcadT':e r3h e screw thrcad shall be of right hand thread, angle of thread 60', pitch equal to l 8l4 rnm.riEg a laper of 1 : 16 on diameter. The principal dimensions and ljmits on this screw thread shal
- .s ii\'en in Figues 4 afld 5.
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SI'S'1184 : t1998
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-E-lErcE PrAr€r FOA GArrGlNC
't.EiNAL II*EAOS CIEARANCE:2p
G-l-
ERENCENE FOR
OAUGIIiIGEXIERNALIHREAOS
CE: STYLE ATYPICAL LOW
PRESSURE CYLINOERSTVLE A
TYPICAL NECX OFDRAWN CYLIIDER
D : Major diheta
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Di.d€td .t r6all .nd ol.h6 varve aIt.!.h.mfd : 23
AII dlJrensiorrs io milLitrEtreg
i3.E€ 5 - DjnEnsions fo]. 3/4" l-4 ilationaf cas Tape!(NGf) thleads onvafve stsrE ard in cyLirder r€cks.
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SLS 1184 : 1998
4 }f{.lEf\G
{ -d yalrE! shall b€ indetibly marked wirh rhe following information:
ai mallufactuter's name and./or hade mark; andb) rDonth and year of manufacture.
lr('lf
Lrr6.-!r:Jn rJ dranrn to cefiirtcaion facilities offeretl by SLSI. See the inside back coyer of this,rsrrin r-
5 T{ETEODS OF TFST
5l Sqk. for t€sttLchs :iierr*.ise specified, the sampling procedure shall be agreed upon by the manufactuerdfu inrchaser-
5l E-r&o6tatic test*sr=rmrire sarnples of machined valve bodies, before assembly, shall be subjected to aryEr*=c test ar a pressue twice the design pressure* for a period of one nin. Therc shall be@ :qrc,Ee or deformation of the valve.
:-l h.satic testE&t rssernbled valve shall be subjected to pneumatic test at a prcssu.e not less than the desiglEEMg' ro de closed position. There shall be no leakage thrcugh the valve.
5J Horoence test of safety relief yalveEcir ssedled valve shall be subjected to pneumatic pressue of uplo 2.6 Mpa 1 10 pe! cent.Ib:a:kr relief valve shall operate within this pressure range.
55 F-+mnq 1a51iqts of de valve shatl be cycted 5000 times for opening and closing operations at a cyclerdE :d i s a.Dd spindle displacement of 2.5 rnm. After the cycling operation the valve shall besdira:t-i !o the pneumatic test and test for leakage. There shall be no leakage through the valve.
!.6 T.* on mbb€r materialsr"I:dter mare.ials in contact with LpG shall comply with the rcquirements of 5.6.1,5.6.2Dl -..6*1
'Tb itElrgn prcssure of domestic and industrial gas cylinde$ currently in use for LpG is: .t5 xFa
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866I : t8 S1S
E
completelyfi '72 h at akiped overrater. Thewater. ThelYolume.
a the 5 min
h over theis test shall
iquirea testbmperaturelDUlry Or asistance to
ac !!: :.aia Staadar'ds Institution (SLSI) ls the Datloqal standards
**j".U"" of Srl lanka estahllshedl by the S!1 TJenke S-tandlelds
;=;;- e"i lt". o of 1984 which rePeals the 3uleau of -
cevlon
il-;;"-;;-i.. -li
or rso". rhe lastitutto0 functions uader the
Ieo-::-- oe InCr:strles aril Sclentlflc Affa{rs'
5s ?::r..1P€1 oblects of the Instltutlon as aet out lD th€ Act are to
lfe)are Ete$derals and Prooote Ehclr adoPtlotr' to provlde factlttleg
:-r;;;;;-;a t."troe of ptoducts; to oPerate a cert-lflcatlon
li; s"h"t , to certlfy the qualtty of pro'lucts.neant for-- loca}
i*I-r-at"" -i,
"tpo"a" and to
-proooie standardlzstlotr and quarity
=:E=j :t educatloEal, consultatrcy afld research ectlvlty'
5e::stltt-tloo is fln&Iceal by Goversment glants' anil by the lacone
=* E--."i; of its publlcatlons an'l fron other servlces' ?lnanc1al
-J ta:J"a..ar". .^oot.o1 i6 vested 1s a Councll appoiated tr
iretrr:_€:ce r.lttr the provlslods of the Act'
5e ig=i1ed 9lePa.atloo of sta['laril 6peclflcatlons -{s- done by
#-;-c..d;;"e" cotpo"ea o1 erperts ltr each Pattlcular fteld
iJ=J -"t o.tt"detrt ofiicets of th; Itrstttutlon' rhese coonlttees
J-.-to:ia"a by the Divlsloaal codmlttees' thtch Ln turr ale
i;ijii-iiti".-'aou""ir. err tsenbers or the Dlafttds an'l DlvlsloDalffiaJs
-' ."ia.r theil services ifl an hoao?ary caPacltv' fa
Ej.* al"- "i.Etlard
speclf lcatlons, the lootltutlon endesvouts to
-r:=. . i .q,=r" repEesentatlon of al l vlei ' polnts'
l:[ ie i:teruatlonal fleld the Iastltutlo1l rePte6€lt6 Srt Lanka ln the
i-;.i;i-o;g"oizatlon for statrdat'llzatloa (rsO) '
etrd partlclpetes
i*"-J-E"ia""of standslillzatlon as are of sPecial itrtelest to
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SRI IAI,IRA STANDARDS INSTIISTION
Sri LaDka StaDdalds lostltutlon,
3, Srt Laaka.
ired ageing
53, DharDaPala
--r!€c
et thet|*_-la, Colctbo
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SLS CERTIFICATION MARK
' :-.-e Sn Lanka Standatds lnstitution is the oaner.' :he registered ceftification mark shoun beLau.Beneath the mark. the number af the Si LankaS.zndard releL)ant ta the product is indicated.:-.:s natk maA be Llsed onlA bg thase uha haueciiained permits under the SLS cetlification-.c-xt , h?ne. Ihe 7e'Pm e ot this markonat inrc:auon ta a prcduct conL)ells the assurance thattheg hate been produced to campLg uith therequiements af the releDant Sri Lanka Standardunder a uelL designed sAstem of qualiv contralinspect ion and test ing operated bA themanufacturer and superuised bg the SLSI whichincludes suft)elllance inspection af the factorg,testing of bath factory and ma*et samPles.
Futlher particulars af the terms and conditions ofthe permit mag be obtained from the Sri LankaStand ards h.stitution, 53, Dhamapala Mawatha,Colamba 03.