"

(

BS 1414 : 1975UDC 821.648.&: 888.14: (822.313+eI2.7&3+1II.I1

Specification for

Steel wedge gate valves(flanged and butt-welding ends)for the p.etroteum, petrochemicaland allied industries

NO COPYING IN ANY FOR.\1 WlTIIOl'T WRITTEN PERMISSION FROM B.."l STANDARDS

1lUs British standard. haviDa beat "IIIX0Wld by the Petroleum Equipment Industry SWJcIudI Committee. wu publishedunder the authority of the ExecuM Baud Oft30 April 1975.

C British StaadardaIDStitutioa. 1975

Fust published January 1949FII'It RViIioDJune 1954Second rcvisioa Man:b 19601bird rcviIioa April 1975

ISBN: 0 580 08991 6

CopyrightUICI'S or British Standards are remiDcledthat copyriabt subsists in aU ISI publications. No put 01 this pu•••••• inQ ~ bereproduced in any form without the prior permissionin writiq of BSI. This does DOtpndude the •.••••• ia the CIOUI'IeorImplcmcmiDathe atandard. of DCICCa1UY ddaill such as symbols and size. type or pade dai~tioaI. Enquiria IbouId beaddraIcd to the BSI Scaetariat.

Contract •.•••ul •.•mentsAttaation is drawn to the fact that this BritishStandard does DOtpurport to include aUthe ~ pIO¥iIioosoIa CODtnId.

Revlalon of Brltlah StsnclanlaIII order to keep abreast of pr'OII'eSI in the indumieI C:Oncemcd,British SIaDdardsare IUbjectto periodic:aIN¥iew. !lIo_ ••••(or improvaDeDti will be recorded and in due course broulht to the notice of the committees charpd with the IW¥iIioa01the Itandards to which they refer.

British Standards are revised, when necessary,by the issue either or ameadmcnt IIipI or of miIed .utioaL B II' I e....t tIIIIt__ elltdtWa SC:adudI •••• ac:saJa tIIIt die, 8ft •• pi I '""'q el tile 1ateIt· v ---~.•_ •••••••.FuB ioCClI'ID&IioDaa dBSI public:atiooa,numbcriD&over 6000,wiDbe (ound in the lIrllbII SItIIrtIt1tvb y~. 1biI iaformatioDillUJlPIe;_4l.4 byddaiJs published each month in BSI Newsor new publications. revisioDIand amendmadI.

BSI Nnn is available to Sublcribiq Membcn 01 the IDStitutioa.AU other puhl~ta.- ilia)' be pun:baIed cIka:t from ••••Department. EDquirieac:oncemiDilUblcn1liDcmembasbip. wIUcbbaa considerable advan•••• wiDbe weIcomecL&DdIhouIdbe made to Sublc:riptionsDepartment. Both dcpanmcntl are located at:

III P••••••••• LoIIIIaa Nt tND (T••••• 01-131_1; T~ 23211).

The rol1owiq BSI references !date to the wort on this atudard:Committee reference PEElI Draft for COII1IDCDt7J/37781 DC

Co-operating organizationsThe Petroleum Equipment IDduItry Standards Committee. UDderwhole supervision this BritisltSIaDdanlwas prepaftld. COIIIiItao( repnlCDtaIiws from the (oIIowiDiCo...et.iu-d ~tI ancllCicntificand iDdUlbial0llP'..n..v-:

British au Corporatioa "CouDI:il 01 British MaDuC8chmn01 PctroIcum E!q11ipmentBritish ~.ft;""1 J!DIineerinI coaCcdcratioa Deputment 01 Enav (Oil)British R.1IIlIl«MaouCIlcturcn'Associatiaa Ltd. ~ Compuica Matcriall AIIociaIion

·British Sted IDduICry Proc:as Plant AIIodaIioa

The orpftmdolw muted with an utaisIt in the above lilt. toaethcr' with the (o1IowiDt.••• directly repl'ClCDledaa thecommittee eatruated with the preparation or this British StancIarcI:

AaocifItioa 01 Hychaulic Equipment Ma~ British Ship RcIeIn:h ~donBritish Cbcmical J;1\~ Contnctors' AIIOCiaJion British Valve ManuCactun:n'AlIOCiItionBritish IndUltrial McuuriDa and Control AppuatUI ~ •••.••• EquipmeGtUIas' AIIodatiaa

Manufac:turcn' A.uciatioD Steel CutiDp 04----..,..British PIutica FedaadoD

8002

AMD5837

Amendment No.1published and effective from 30 June 1988to BS 1414: 1975

Specification for steel wedge gate valves(flanged and butt-welding ends) forthepetroleum, petrochemical and allied industries

Revised text

AMD5837June 1988

Inside front cover

In line 2 of the paragraph covering BSI references relating to work on the standard. delete'PEEl I ' and substitute 'PSEl7 (formerly PEE/I)'.

AMD5837June 1988

Foreword

Delete paragraph 3 (beginning 'British Standards for')

Clause 27. Yoke sleeve retaining nutAMD5837June 1988

Delete this clause and substitute the following new clause.

'27. Yoke sleeve retaining nut

The yoke sleeve retaining nut shall be ofa material having a melting point above 955 -c. Grey cast iron shall not be

used. If malleable cast iron is used it shall comply with the requirements ofBS 6681 for grade B 32-10 or gradeB 35-12. Ifspheroidal graphite cast iron is used it shall comply with the requirements ofBS 2789 grades 350/22,400/18 or 420/12:

AMD5837June 1988

Clause 32.1

In line I delete'BS 1506-621 grade A' and substitute 'BS 1506-630-860'.

AMD5837June 1988

Table 2. Trim materials, hardness and acceptable specifications

Delete this table and substitute the new table 2 attached.

---------------------------------------------------

---------------------------------------------------

AMD 5837 aSI publications referred to in this standardJune 1988

Delete the entries for as 310, BS 1501-6 and BS 1503.

Delete tbe entries for as 1400. as 1503 and BS 2789 and substitute the following:

'SS 1400 Specification for copper alloy ingots and copper alloy and high conductivity copper castings .

SS IS03 Specification for steel forgings (including semi-finished torged products) for pressure purposes

as 2789 Specification for spheroidal graphite or nodular graphite cast iron'.

Insert the following British Standards in numerical order:

'SS IS04 SpecifIcation for steel castings for pressure purposes

SS IS06 Specification for carbon, low alloy and stainless steel bars and billets for bolting material to be used in pressureretaining applications

SS 6681 SpecifIcation for malleable cast iron'.

2

CDCDo01IN

I,.)

);:coU1(X

~S

Table 2. Trim materials. hardness and acceptable specificationsI 134567a II10II1113

NOIDIul

l\Ialerlall)'pe Minimum Brlaell hardness-Acnplable malerlallpeclf1callo ••Irlm 1)"lDboi

SealSlelDBackSealSlelDBackCult ForplBarlurJ'ac:et

seallurfac:et Iil:lllbushlnd

bushl ••BS ASTMISASTMBSASTM

CR 13

13 CrI3CrI3CrI200250ISQ4-42OC29A487·CAIS1503-410521A182-F61506-410521A276-410A487-CA6NM

18-1 Ti

18·818-818-8Manufacturer's standardIS04-347C 11-1503-321531A I12-F32 I1506-321531A276-32ICr-Ni-Ti

Cr·Ni·TiCr-Ni·Ti 1503-3215SI

11-1 Nb

18-118-818-1Manufacturer's standardIS04·341C17A3SI-CFBC1503-347531A I82-F3471506-34 7531A216-341Cr-Ni-Nb

Cr-Ni-NbCr-Ni·Nb 1503-3475SI

11-10-1

18-10-218-10-218-10-2Manufacturer's standardIS04-316C16A3SI-CFBM1503-316531A182·f3161506-316531A276·316Cr-Ni-Mo

Cr-Ni-MoCr·Ni·Mo 1503-3165331506·316533

18-12-3

18-12-318-12-318-12-3Manufacturer's standardIS04-317C16-1503-316533--A276-317Cr-Ni-Mo

Cr-Ni·MoCr-Ni-Mo

2S-20

25-202S-202S-20Manufaclurer's standard---A182·F310--Cr-Ni Cr-NiCr·Ni

HF

66-26-5--35011--- -----Co-CroW ---- nCrnCr-200250IS04-42OC29A487-CA151S03-410521A182-F61506-410521A276-410

CRU

13Cr13CrI3Cr2SO'l2002SOIS04-42OC29A487-CAI51S03-410521A182-F61506-410521A276-410and Cu-Ni

Cu·Ni--175'1--Manufacturer's standard with 30 % nickel min.

CR IJ

13Cr13Cr13 Cr300'12002S0IS04-42OC29A487-CA151S03-410521A182-F61506-410521A276-410and HF

66-26-S--350'1--- -----Co-Cr·W

Ni-Cu

Ni-CuNi-CuNi·Cu---3071 NAI---3076 NAI3-Allo)' •.••110)'•.••lIoy

AB

Aluminium•.••Iuminium•.••IuminiumManuracturer'sltandard 14OO·ABI,B148-9S2A,2872-CAI04BI24-6422174-CA101BI5O-642bronze

bronlebronze I400-"" B2B148-9SSD BI24-6302174·CAI04BISO-630

B

Bronze-BronzeManufacturer's standard1400.01,B584-90S----14OO-L02

B584-836

-ManaanescManpncscManufacturer's standard14OO-HTBI8584-8642872-Cl1148138-6752874-Cl1148138-615

bronzebronze 8584-865"

- See BS 240 : Pan I.

t CutinlS not applicable to stem materials; see 29.4.

t For austenitic: trims the backseat may altemalively be a weld deposit oftbe lime nominal material composition as the trim or a welded·on hard racinl. For hard rac:cd(HF) trim the back scat may alternatively be a welded-onhard facinl.IBody and wedae scat surfaces 250 HB min., with SOHB min. differential between body and wedle scat surraces.II Differential hardness belween body and wedlle seat surfaces is not required .• Differential hardness between body and wedae scat surfaces~hall be the manufacturer's standard.

-...

(

AMD868ZAuguat 1110

AMD8582

Amendment No.2published and effective from 31 August 1990to BS 1414 : 1976

Specification for steel wedge gate valves(flanged and butt-welding ends) for the petroleum,petrochemical and allied industries

Revised text

Contents

Delete the entries for section five and clause 43 and substitute the fonowing.

'Section five. T&Sting

43. Production pressure testing'

Under the heading 'Tables' , after the entry for table 2 insert the following.'2a. Test durations'

Delete the entry for table 11 and substitute the following.'11. Table deleted'

Foreword (as amended by Amendment No.1)

In line 10, delete'BS 5146 'Inspection and test of steel valves for the petroleum,petrochemical and allied industries" and substitute the following.

'BS 6755 'Testing of valves' Part 1 'Specification for production pressure testingrequirements"

After line 10, insert the following note.'NOTE. Requirements for final inspection and supplementary inspection at all stages of manufacture.previously specified in BS 5416 : Pan 1 : 1974 (now withdrawn) should be stated by the purchaser in hisenquiry or order.'

Section five. Inspection and testDelete the title and substitute

'Section five. Testing'

Clause43. Inspection and test requirements

Delete the existing clause and substitute the following.'43. Production pressure testing

All valves shall be pressure tested by the manufacturer before despatch inaccordance with BS 6755 : Part 1 as follows:

(a) hydrostatic shell and backseat tests;

(b) hydrostatic seattest (see note);

(c) pneumatic seat test (see note).

The test durations shall be as given in table 2a.NOTE. Attention is drawn to DOte1 of D.8.3.2 of BS 6755 : Part 1 : 1986 regudina the seqUCIICCofoperations when the seat test procedure iscarried out. Valves tested to BS 1414 should hPe the sequeaceofiteml (b) and (e) in D.8.3.2 ofBS 6755: Part 1: 1986 reversed. SeattOit leakqeme A ahOuJdaPPly.For the baclaeat test there should be DOYiaualleakqe for the duration of tho test tD.

----------------------------------------------------

." .

AMD 1I&1ZAUIUIt 1810

AMD6&1ZAugust 1810

AMD lIS62

August 1990

Newtable2a

Insert the following new table 2a after clause 43.Table 2a. Test durations

NomiDaI YlIIftIbe MIDlm •• testdaratloD

Shell test

BlICkseat testSat test

S

S S

Up to and includingDN SO

1S1S 1S

DN 6S up to and including DN 1S0

601S 60

DN 200up to and including DN 300

12015 120

DN 350 and larger

30015 120

Clause B.5lnspection and testingDelete the clause entirely and substitute 'B.S Tat deleted'.

Table 11.Hydrostatic test pressuresDelete the table entirely and substitute 'Table 11. Table deleted'.

BSI publications referred to in this standard (as amended byAmendment No.1)

Delete the existing reference to BS 5146 and substitute the follo~g.BS 6755 Testing of valves

Pan 1 Specification for production pressure testing requirements'

----------------------------------------------------

8008-1 2 PSEI7

,.(

as 1414 : 1975UDC 821.648.5: 689.14: (822.313 + 882.7153 + ee&.8)

.Specification for

Steel wedge gate valves ...(flanged and butt-welding ends)for the petroleum, petrochemicaland allied industries

Amendments issued since publication

Amd. No. I Date of issue I Text affected

British Standards Institution . 2 Park Street . london W1 A 2BSTelephone 01-829 9000T•••• 288833

BS 1414 : 1975

Contents

r,!Pale

Pa,eCo-opcrating organizations

Inside front coverSection four. MarkingForeword

337. Required markiDp

II38. Body and nameplate marldnp

IISpecification

.39. Body aDd boDDCtmarkiDpIISection one. General

40. Nameplate markiDpII41. Additional markiDp

19.wJ..·Scopc

442. Omission of mukinp 192. References

43. Nomenclature

44. Pressure c1assi1ication

4Section five. In.peatlon and t_S. Pressure/temperature ratinp

443. Inspection aDd test requirements 19

6. Nominal sizes4

7. Information to be supplied by the purchaser8SectIon alx. Shipping

44. PrcIin1inary

19Section two. D.lgn

4S. Preparation for despatch19

8. Body

846. Pacbging l'9. Bonnet

n10. Wedge

1211. Yoke

12Appendlcea

12. HandwhcclaDd bandwbeel nut

12A. Particu1u dimensions for each class13. Stem aDd yoke sleeYe

12ofva1ve 2014. Stuffing box, packing and lantern rial

13B. Application to piping systems withIS. Bolting

14BS 4504 ftangcs 2416. Operation

1417. Bypass

1418. Soft seal rings

ISTabl_

1. Stufling box bore and packing width

13Section three. Materia ••

2. Trim materials. hudncss and19. Shell

ISacc:cptablcspecifications 17

20. Body seat rinp

IS3. Dimensions of Class ISO valves 20

21. Bonnet gasket

IS4. Dimensions of Oass 300 valves 21

22. Wedge

ISS. Dimensions of Oass 400 valves 21

23. Yoke

IS6. Dimensions of Oass 600 valwa 22

24. Handwhccl or chainwheel

167. Dimensions of Class 900 valves 22

25. Handwhccl or c:baiDwheelnut

168. DimcDsions of Class 1500 valves 23

26. Yoke sleeve

169. Dimensions of Class 2SOO valves 23

27. Yoke sleeve retaiDiq nut

1610. Nominal pressure and class ratiDp

28. Glaud

16and nominal size range 24

29. Trim

1611. Hydrostatic test pressures 2S

30. Lantern ring

1631. Stem packing

16Flgu,.32. Bolting

1633~"Plugs

181. Solid wedge pte valve, outside lICI'eW

34. Nameplate18and yoke rising stem, cast or foqed IteeI6

3S. Soft seals182. Butt-welding endI 9

36. Special applicatioaa183. Location of tappings 10

2

851414 : 1975

( Foreword

Specification for threading, gaging, and thread inspection of casing, tubing and line pipethreads

Steel gate valves (ftanged or butt-welding ends)Large-diameter carbon steel ftanses

Steel pipe flanges and flanged fittings (including supplements)Buttwelding ends

Forged or rolled alloy-steel pipe flanges, forged fittings and valves and parts for high tempera­ture service

Stainless and heat resisting steel bars and shapesFcrritic and austenitic steel castings for high temperature serviceCopper and copper alloy forging rod, bar and shapesManganese bronze rod, bar and shapesAluminium bronze sand castingsAluminium bronze rod, bar and shapes

Copper alloy sand Qlstinp for SCoeral applicatiops

A 276A 351B 124B 138B·I48B ISO

BS84

Std 600Std 60S

ASTMA 182

This British Standard is one of a series" for valves prepared under the authority of the Petroleum IndustryStandards Committee. It was first published in 1949 when the materials rd'em:d to were described byreference to ASTM specifications. It is a metricated revision except that class designations and body tobonnet bolting sizes have not been converted into metric units. Imperial units are also Jiven for somedimensions in order to comply with established international petroleum practice. The previous sectionsdealing with face--to-face and end-~d dimensions, inspection and tests ha'WeDOW been omitted as thesesubjeds have their own separate standards:

BS 2080"' Face-to-face, centre-to-face, end-to-end and centre-to-end dimensions of flanged and butt­welding end steel valves for the petroleum, petrochemical and allied industries'.BS 5146 • Inspection and test of steel valves for the petroleum, petrochemical and allied industries '.The end flanges for valves of 600 mm (24 in) size and below are required to be in accordaJH:C with BS 1560

• Steel pipe flanges and flanged fittings (nominal sizes i in to 24 in) for the petroleum industry': Part 2'Metric dimensions' (corresponding to ANSI B 16.5) and butt-welding ends are generally in accordancewith ANSI B 16.15. For valves larger than 600 DUD (24 in) size, end flanges are Rquired to be in accordancewith BS 3293 'Carbon steel pipe flanges (over 24 in nominal size) for the petroleum industry' or APIStandard 60S.

NOTE. User requiranaltl for valva acaaaJ1y in accordance with this standard but suitable for use in pipina aystemI withftaa8es in accordance with BS 4504' FJ.anaa and boltil1l for pipes, valves and fittinp. Metric scria' are dealt with in &pJJeDdixB.

British Standards for steel (BS 1501-6 • Steels for use in the chemical, petroleum and allied industries ')comparable with ASTM specifications were first published in 19.50 and a revision of BS 1414 incorporatinathem was published in 1954.

"It is intended that valves complying with the requirements of this standard should be interchangeable asunits with those of similar type specified in API 600. The present revision ofBS 1414 is generally in accordancewith the seventh edition of API 600 (November 1973) except that it has been extended to cover carbon steelvalves in sizes up to 10.50 mm (42 in) in aass ISO and aass 300.

Acknowledgment is made to the American Petroleum Institute and to the American National StandardsInstitute for data used.

The titles of the American standards referred to in this standard and the foreword are as follows:

ANSIB16.s

B 16.15

APIStd 5b

3

as 1414 : 1975

British Standard Specification for

Steel wedge gate valves (flanged andbutt-welding ends) for the petroleum,petrochemical and allied industries

Section one. General

1. Scope·This British Standard speci1ies Rquimnents for cast or forged carbon and alloy steel outside scmr and

. yoke, solid wedge (plain or flexible) rising stem gate valves, with or without soft seals, with ftanpd or butt­welding ends, in nominal sizes within the range of 2S mm to 600 mm (1 in to 24 in) and Class ISO to ClasS2500. It also covers carbon steel valves in nominal sizes 6SO mm to 10SO·mm(26 in to 42 in) in Class ISOand Class 300 only. This standard can also be used as a general guide where valves ofmateria1 compositioaoutside the scope of section three of this standard are required as, for example, for use in highly corr~servic:esor environments or for low temperatures (see clause 36).

2. References'lbe titles of the British Standards referred to in this standard are listed oa the inside bade cover.

3. Nomencleture

For the purposes of this British Standard the nomenclature for valve parts shan be as shown in fi&uze 1which is also illustrative of some acceptable MtiI1lR,

4. Pressure cla•• ificatlon

This standard applies to valves of the fonowing pressure class desigaatiolll:Class ISO, Class 300, Class 400, Oass 600, Class 900, Class 1500 and Class 2SOO.

The numerals in these class designations represent the primary service pmsure ratinp of the valves inpounds-force per square inch•..

6. Pressure/tempereture ratinpThe pressure/temperature ratings applicable to valves specified in this staDdatd shall be in accordance withtables PE-I to PB-I2 of appendix A of BS 1560: Part 2: 1970 for the pIItic:uJar shell material specificcLThere is, however, a temperature restriction on soft seals and on certain trim materials (see 11.3 and :19.5).

Wbcre valves in accordance with this standard are to be used at service temperatures below ~30 "C,

referenc:e should be made to BS 3351. Service temperature refers to the temperature of the fluid in the liDoat the valve.

e. Nomlnalsiz ••This standard covers valves of the fonowing nominal sm:

Dun em) mm em) mm. em)

25 (1) ISO (6) SOO (20)32- (Ii>- 200 (8) 600 (24)«) (11) 2SO (lot .6SO (26).50 (2) 300 (12) 700· (28)65- (2,)- 3SO (14) TSO (30)80 (3) 400 (16) 900 (36)

100 (4) 4SO (18) 10SO (42)

Por each valve class the applicable sizes are shown in appendix A.

• Thae Iizca have been maiJIaI ooIy for the purpoIO or replKiq cxiluna valva. Their '* ror new ClOIIIItr'lIetioDin pipia,.,... •• lIS l5tiO : rwrt ~ cad ftaDIra sboulcl be avoidecl.

4

"

(

Page 5 (bIanIc)

as 1414 :.1975

Half sections and sketches show "terneti¥e typic" dnlgns

Soft Mal ¥8I¥e­•••• in wedge

13

Typical flexible wedge

20

21

Butt-weldingends

26

18

17

16

19

14

figure 1. Solid wedge gate wive, outIidescrew end yoke rising stem, cast or forged steel .

8

( 15

39

BS 1414 : 1975

View showing yoke with actuator mounting flange

MdIdIlRel••.•••

NIaDe f1I JIII't --a.-1

Body l'2

End ftanac -3

Butt-we1dina end -4

Bodyboaes -S

Bodyfbonnet ftanae -6

BonDCt It7

Bonnet ftanae -8

Shoulder seated riDJ Mand2.9

9

Bottom seated ring 2tand2.9

10

Bonnet psket 11

11

Rin,joint 11

12

Plain wedae Dand2.9

13

Flexible wedac Dand2.9

14

Yoke 23

IS

Actuator mountiq ftan&e-16

Yoke cap -17

Handwbeel Z4

18

Handwhed nut 25

19

Yokellee¥e •20

Yoke sleeve rollina beariDi-21

Bearina lubricator flttiq- Mat.wRelenace

Na.- f1I JIII't nlenace•••22

Yoke sleeve retainiqnutrt

23

One piece 8Iand 21

24

Gland followcr 21

2S

Gland ftanae 21

26

Stem 29

27

Stem seat -28

Wedge facinl rin. 2.9

29

Back-seat bushing 2.9

30

Back seat 2.9

31

Lantern rin, 30

32

Stem pIcltins 31

33

Wiper rin •• 31

34

BonDct stud-bolts and nutsn3S

Gland bolt and nut n36

Gland lua bolt and nutn37

Yoke boluna n38

Stuffin. box plu, 33

39

NamepIato 34

40

Soft seal riq 35

41

Soft seal mainin, rinI35

42

Soft seal rc:tainiq rin& ICICWS35

NOTE. These aketcltes are composite for the purpose of showina some typical variations in indiviclual details and part nameLA product utilisin. any combination of thcee dcIaiJs (except when such combination may be specifically prohibited in the tat)01' simiJar construction will be acceptable provided it complies with this standard in all other raped&.

• See appendix A. t See flaure 2-

Figure 1. (continued) 7

as 1414 : 1975

7. Information to be supplied by the purchaserCertain clauses of this standard permit alternatives and the purchaser may require features which departfrom the requirements of this standard. The purchaser should state in the enquiry and order the following(the items marked with an asterisk are mandatory).

(a)- Class and nominal size (see clauses 4 and 6 and &7).(b) - If soft seals are required and. if so, whether these are required to be in the wed~ seats or bodyseats (see clauses 5 and 18).'(c)- Whether flanged or butt-weldiIig ends "arerequired.

(1) If flanged ends are required, whether welded-on flanges are acceptable (see 8.5); the type offacing (see 8.6); for sizes above" 600 nun (24 in), whether flanges are to be in accordance withBS 3293 or API Std 605.

(2) If butt-welding ends are required, the pipe schedule number or wall thickness and outsidediameter (see 8.8 (b».

(d) If allowance is to be made for the passage of a pipe scraper (see 8.8 (c».(e) If shell tappings are required and, if so, the location and the type of thread if other than API Std SB(see 8.9 and 9.8).(f) If a particular form of wedge is required (see 10.2).(g) If the yoke is to be fitted with a flange for actuator or gearbox mounting (see clause 11).(h) Details of type of operation required if other than dircct-handwheel operated (see clauses 11and 16).(i) If a lantern ring is to be provided for Class 300 to Class 2500 valves (see 14.4).(j) If a bypass is required, give the fuU specification of the bypass valve, piping and connections (seeclause 17).(k)- The shell material (see clause 19).0) If a special bonnet gasket is required (see clause %1).(m)- The nominal trim material symbol (see %9.2).(n) If any special stem packing is required, or specify packing design temperature jf above 400 °C (seeclause 31).(0) Material(s) for bonnet, gland, and yoke bolting if required for operation at process design tempera-tures below -30 DCor above 480 DC,or for other special operating conditions (see clause 3%).(p) Material requirements for valves in highly corrosive services or environment, or for low temperatureservice (see clause 36).(q) Test and inspection requirements in accordance with BS 5146.(r) Requirements for tropical or special packaging (see clause 46).

Section two. Design

8. Body8.1 For the body the design criteria specified in 8.2 to 8.11 shall be observed.

8.% The body shall be designed to minimize pressure loss as well as corrosive and crosivc·cffects. The bodycnd ports shall be circuJar.

8.3 The wall thickness of the body shall conform to the shcll thickness given in appendix A. Drilling of, orpinning to, the wall of a pressure-containing part, e.g. for nameplate fixing, is not permissible where itwould reduce the cffectivc thickness below the minimum permitted valuc.

8.4 Face-ta-face dimensions for raised face flanged end valves and end-to-end dimensions for butt-wcldingend and ring joint flanged end valves shall conform to the dimensions specified in BS 2080.

s.s End ftanges shall be cast or forged integral with the body except that flanges may be attached by weldingif so specified in the order. The welds of end flanges attached by butt-wclding shall comply with the require-.ments of BS 3351 and shall have any necessary heat treatment as required by BS 3351 to cnsure that they aresuitable for service temperatures down to -30 DC.Flange attachment by other welding processes shall bethc subject of agreement between the manufacturer and the purchaser.

8.6 End flanges shall comply with the requiremcnts of BS 1560:Part 2 for valves up to and including 600mm(24 in) nominal size and BS 3293 or API Std 605 (as specified by the purchaser) for valves over 600 mm(24 in) nominal size. End flangc facings shall be one of the types shown in figures 1 and 2 of BS 2080. Thepurchaser shall specify the type of facing required.

Valves generally in accordance with this standard but suitablc for use in piping systems with BS 4504flanges shall comply with the requirements of appendix B.

8

BS 1414 : 1975

a.7 Butt-welding ends sball comply with the details shown in figure 2-NOTE. When weId.iaa butt-wddiq eocl valva into pipiq systems the welds and any necessary heat trcatmcnI shaD complywith the requiremalta of BS 3351.

'\',--­-­

•... -•..~ .....•. iI....-_.~.:.~_.. I (i

1.6! 0.8 "'"'

(a) Welding end for connection topipe of wall thlc:lu1•• , of6 mm to 22 mm incIuaiw

(b) Welding end for connection topipe of wall thicknea tgreater than 22 mm

A == Dominal outside diameter of welding end (see table below)B == Dominal inside diameter of pipe (for tolerance on B, see table below)t == nominal wall thickness of pipe.

NOTE 1. The inside and outside surfaces of valve weldina ends shall be machine finished overall. Wddina-ead bores sbaIl benw:hined paralld for a distance of I.St and then run out as shown in the figures without abrupt cbaoge of sectioa. The outsiclcaof wddiDI ends may be run out in any manner indicated in the fiJUres, provided that sharp angles and abrupt chaDp::s of slopesare avoided.

NOTE 2. For nominal outside d.iameten and wall thicku nUl of standard steel pipes see BS 1600 : Part 2.

NOTE 3. For valves required to CODDeCt with pipe of less than 4.8 rom walt thickness the angle 37oS ± 2.S. shaD DOt applyand weldiDa ends sbaIl be finished to a alight clwnfer or be square, at the option of the manufaeturer.

NOTE 4. ReprdIesa of tolerauc:es specified for dimcnsioDl •••aad B, the thic:bess of the weldiq end sbaIl DCYeI'be lea tbm87.5" of the DOIIlioa1 thickDcaa of the pipe. .

NOTE 5. For end-lP-eDd dimeasioua of butt-wcldioa end wlva lee BS 2010.

•••. (mm) B5 44 I50 I62 I15-1 91 1117 1172Tolerance OD +0A (mm) -0.'Tolerance OD

B (mID) I±o..

ValveIIOIIIiDa1size

50 I 6S I 80 1100 1150

(2) I(21)1 (3) I(4) I(6)

±u +3.2-1.6

• A IbaD be 78 mID wbeo UIed with BS 36iOO ·1teeJ pipe.

figure 2. Butt-welding ends

9

BS 1414 : 1975

8.8 For flanged valves the minimum iDside diameter of the body end port shall be IS specified in appendix A.For butt-welding end valves the miDimum inside diameter of the body end port sbaU comply with the

details given in figure 2. Pipe schedule number or pipe wall thickness and outside diameter of the pipe shallbe specified by the purchaser ..

If it is required to pass a pipe scraper through the valve, this shan be specified by the purchaser.

8.9 Valves of nominal sizes 80 mm (3 in) and above shall have provision for tappings at the ~en positionsA to G shown in figure 3. When the metal thickness of the body is insufficient to provide thCe1fective lenJthof the thread for body tapping, or the body presents an uneven surface, bosses shall be prcmded.

Provision should be made for the body tappings as follows:

NcIaIr.I_ I Pfpe ••••••••I•••••••diameter vi ••

mm

inmmSO to 100

i38ISO and 200

t442SOand 300

154

3SO and largerIi70

Holes shall not be drilled or tapped unless specified in the order, which should then state the threadrequired (if other than API Std SB) and the location (see figure 3). Tapped holes shall be provided with plugs.

On valves of nominal sizes below 80 mm (3 in), provision for tapping shall be IS specified by the purchaserand shall comply with figure 3 as regards location.

Where a bypass is to be provided see clause 17.

c G 0

c

A

o

Third angle projection.

NOTE. For vaJvcs below 80 mm the boaacc tappinl may ~ positioned to suit the manuf'.aurer.

Figure 3. Location of tappings

8.10 Separate seat rings in the body sball be employed except as indicated in <a) and (b) of this subclause.<a) Austenitic steel valves, in which case these may have integral seats.(b) Austenitic or hard-facing (body) scat materials which may be deposited directly on the valve bodyand the minimum finished thickness of the deposit shall then be 1.6 mm. Direct deposition of 13"chromium seat material on to the body is not permissible.

10

as 1414 : 1975

Separate seat rings may have directly deposited seati11l material in ac::cordance with any of the S~tiODSindicated in table 2, in which case the minimum thickness of the deposit shall be 1.6 mID.

Seat rings may be shoulder-seated or bottom-seated at the option of the manufacturer and may be -..",.....,d

in, rolled in or welded in unless one particular method is specified by the purchaser. Threaded seat rinpshall be provided with lugs or slots to facilitate removal Shoulder-seated rings shall be designed 10 thatany clearance between the back of the ring and the bottom of the ring recess shall be not greater than 1.6 mm forsizes 300 mm (12 in) and smaller, and 3.2 mm for sizes 350 mm (14 in) and larger (see figure I). Tack weldin,may be employed to prevent loosening (see BS 33S1). The faces of the rings shall be smooth finished with thesharp comers at the inner and outer edges removed to prevent scoring of the wedge faces.

The use of a sealing medium on the threads is not permissible.The use of soft seals in body seats is dealt with in clause II.

8.11 Wedge guides shall be provided in the bodies of an valves to cover for the full travel of the wedge 10that the seating surfaces of the wedge do not touch the body seats until near the point of closure. 1'besoguides shall be of the male or female type, so p1ac:ed as to engage with the guide slots or lugs of the wedge.Valve guides shall be integral with the body except that for valves of nominal sizes 6SO mm (26 in) and largerthe guides may be separate components welded into position.

9. Bonnet

'.1 For boaDets the design criteria specified in ,.2 to , •• shall be observed.

,.2 Wall thickness of the bonnet shall conform with sheU thickness as shown in appendix A. DriJIiD, of, orpinning to, the wall of a pressure containing part, e.g. for nameplate fixing, is not permissible where itwould reduce the effective thickness below the minimum permitted value.

,.3 The body to bonnet connection shall be ftanged and the flange facings shall be male-and-female. tongue­and-groove, or ring joint type,except for Class ISO which may be a plain (ftat) faCc~

Where possible, bodyJbonnet flange facings anti ~ .shall be of standard di~"!I'ons in ICCOrd8DCe

with BS IS60 : Part 2, BS 3293 or API sid 6057-.- .

'A Bonnet flanges and bodY/bonDet ftanses shan be of circular form in all cases, except that: .(a) for Class ISO valves they may be oval;(b) for all valves below nominal size 80 mID (3 in) they may be square or rectangular.Flanges shall be spot-faced or back-faced as specified in BS 1560 : Part 2-

,.5 The body to bonnet joint shall have at least four stud-bolts of the following minimum size c:xcept thatfor nominal sizes below SO mm (2 in) studs may be used (see also 15.2).

mm2S to SO

80 to 200

2SO and larger

inI1t

9.' To permit repacking of a valve in the open position while in scrvic:e, a machined conical or spberica1back seat shall be provided in the bonnet to contact a corresponding seating surface on the vahe stem.Bonnet back seats shan be in a busliing, exc::ept that for a valve with either an austenitic or hard faced trimthe seating surface may be a welded deposit. On an austenitic steel valve the back seat may be on eilber anintegral surface or welded-on hardfacing. Welded deposita shall have a minimum finished thic:kness of1.6 rom.

9.7 The hole at the back seat shall be designed to provide adequate gui~ for the stem and to preventpacking extrusion.

9•• Valves of nominal size 80 mm (3 in) and larger shall have provision for a 1in tapping at the location Hshowll in figure 3. Provision for a 1in tapping shall also be made on valves smaller than nominal sizIe 80 mm(3 in) at a position convenient to the manufacturer. The thread shall be stated if ot~r th~" API Std ,8.

11

85·'.414.: 1975

10. Wedge10.1 FOI' wedgesthc design criteria specified in 10.2 to 10.5 shaD be observed.

10.2 A solid wedge. which may be fabricated by welding, shall be provided. It may be either a plaiD wedge.baving essentially a trapezoidal (or an I)aoss section, or a flexible wedge bavina a tapered H or inverted Ucross sect,iOD.It shaD be free from pockets which could form,liquid traps when the valve is mounted withthe stem vertical. Unless the order specifies a plain wedge or a flexible wedge, either may be supplied.10.3 Wedges 'may have integral faces or may have separate facing rings rolled in, welded on or directlydeposited. Directly deposited faciDp shall have a minimum finished thickness of 1.6 !DID.

The use of soft seals in wedge seats is dealt with in clause 18.

10.4 Guide slots or lugs to engage the body guides shall be provided on the wedges of all vaIves. The slotsor .lugs shall be of ample length and shall extend below the horizontal centre line of the wedae. WedpsshaD be provided Viith a suitable slot at the top to receive the button or ~bead of the stem.10.5 ·The desian shall provide adequate seatina width, both before and after wear of the seatina surfaces.The minimum values of wear travel sbaII be as follows:

mm25to SO65 to ISO

2OOto 3003SOto 4SOSOOto 6006SOto 1050

mm236

101315

11. Yoke

The yoke may be integral with the bonnet or, if separate, self-locatina on the boaDct and attached by suitablebolting. The yoke shall be machined where it comes in contact with the bonnet and the yob sleeve. WheDspecified in the order the yoke shall be provided with an actuator or gearbox mounting flange (see 16.4).The yoke and the actuator or gearbox mounting shall be of adequate strength to support the actuator or~~u~an~m~oomthew~ .

12. Handwheeland handwheel nut

12.1 The handwheel shall be of the spoke-and-rim design, preferably with not more than six spokes. In thesmaller sizes, where the space between the spokes is 'limited, the provision of knobs or studs projcctinabeyond the outside diameter of the handwheel is desirable.

12.2 The valve shall be opened by turning the handwhcel in an anti-clockwise direction. The handwhcelshall be suitably marked with an arrow and the word OPEN to indicate the direction of rotation to opeDthe valve.

12.3 The handwheel shall be retained on the yoke sleeve by a threaded handwheel nut.

13. Stem and yoka sleeve

13.1 The minimum stem d.iaIne= shall be as given in appendix A.13.1 The stem shall be of one piece design and shall have a beveIlcd or spbaical seat Jl'acb\ned on it toseat on the bonnet back seat when the valve is fully opened.Ui3" The projection outside the yoke sleeve of the stem threads on a new doeed valve sball be ufollowaUDJess a closer tolerance is requinld by the purchaser:

Ne.IMI" . LIIIIIafI6•••• ,.;edJ.

mm

em)mm25to SO. (1 to 2)2to 10

65 to 150( 21 to 6)3 to IS

200 to 300(8 to12)6 to 20

3SOto 4SO. (14 to 18)10 to 30

SOO~600(20 to 24)13 to 40

6SOto 1050(26 to 42)15 to so

12

BS 1414 :1975

1M The stem shall ha~ threads of Acme or other trapezoidal form and shall have an integral end of buttonor tee-head form. fitting into a slot in the top of the wedge. to provide flexibility between the stem and thewedge. The design shall prevent turning of the stem ·or disengagement of the stem from the wedge durinlservice. Threaded or pinned connections between the stem and the wedge shall not be used.

13.5 The yoke sleeve shall be internally threaded to suit the stem and shall be designed to permit readyremoval of the handwhee1without allowing any axial movement of the stem.

13.6 AU surfaces of the yoke sleeve in contact with the yoke shall be machined. Rolling bearings shall befitted to the followinl nominal sizes of valve: .

Cass 400 250 mm (10 in) and larger.Class 600 and upwards ISOmm (6 in) and larger.

Adequate provision for lubrication shall be made in all classes and nominal sizes.

14. Stuffing box. packing and lantern ring

14.1 The stuffing box bore shall conform to the dimensions given in table I and shan have a minimumdepth. based on square section packing of the nominal width shown in the table. as fonows.

Class ISO equivalent to six rings of packing.Class 300 and above equivalent to a lantern ring length and seven rings of packing.

Table 1. Stuffing box bore and packing width·

I I23••5,~ Item diametll'

NcaI8aI pKkiDa wWdaNGBIiIIII ••.• fIlltIdIIaI ba

mm

(in)mm(in)mm(in)15.9

(I)6.4(1)29.4(11.)17.5

(ft)6.4(1).31.0(lit)

19.0(f)6.4(1)32.5(11',)

22.2(6)6.4(1)35.7(Iii)

25.4(I)6.4(1)38.9(Ill)

28.6(ll)7.9(A)45.2(lit)

31.8(Ii)7.9(A)48.4(lK)

34.9(11)7.9h\)51.6(2~)

38.1(II)9.5(I)57.9(2/.>

41.3(II)9.5(I)6J.J(2H)

44.4(If)9.5(I)64.3(2H)

47.6(Ii)9.5(I)67.5(2H)

SO.8(2)11.1(~)73.8(2ft)

54.0(21)11.1(iI)77.0(3~)

57.2(21)12.7(n83.3(3/r)

60.3(2f)12.70)86.5(JH)

63.5(21)12.7(l)89.7(311)

69.8(2f)12.7(I)96.0(3ft)

73.0(21)14.3(/,)102.4(4~)

76.2(3)14.3(-A)105.6(41.)

82.6(31)19.0(I)121.4(4ft)

88.9(31)19.0(f)127.8(5ir)

95.2(31)19.0(I)134.1(51r)

101.6(4)19.0(I)140.5(5H)

108.0(41)19.0(I)146.8(5H)

127.0(5)25.4(I)178.6(7ft)

.

• For intermediate sizes or stan one of tho ICUldard pl!dtilll widths lilted IbaII be used,

13

as 1414.: 1975

14.2 Packing glands shall be of one piece, one piece bushed, or two piece self-aligning design. Verticallysplit glands shall not be used. The gland proper of a two piece gland shall have a shoulder on its outer endto prevent complete entry of the gland into the stuffing box.

14.3 The packing width shall be as spccificd in table 1. The packing may be of square, rectangular orchevron section.

14.4 Class ISO valves shall not have lantern rings. Class 300 to Class 2500 valves shall be supplied with alantern ring when specified in the order. Lantern rings shall have two holes, spaced at 1800, provided ateach end for removal. These holes shall either be through-holes for hooks or tapped 5-40 UNC. When alantern ring is provided it shall be positioned such that with square section packing there will be Ave ringsof packing above the lantern ring and two below. The stuffing box shall then be tapped opposite the centreof the instaUed lantern ring and fitted with a round head pipe plug in accordance with BS 3799 of not lessthan 1nominal size. A boss shall be 'provided if necessary to ensure minimum thread eqagCMcnt.

16. Bolting

15.1 This clause is concerned only with that bolting which forms part of the valve and is not concernedwith bolting for fiangcd connections between the valve and a pipeline or pipe fitting.

15.2 The allowable working stress in bolting material for bonnet fianges at the primary service pressuresJiven in clause 4 shall not exceed 62 MPa assuming that the pressure acts upon an area circumscribed bythe outside periphery of the gasket or, for a ring joint, that the pressure acts through the pitch circle of thering joint.

Bonnet fiange bolting shall be by stud-bolts with a nut at each end of the stud-bolt except that for valvesizes below SO mm (2 in) studs in accordance with BS 2693 : Part 1 may be used. Stud-bolts and nuts shallcomply with the requirements of BS 4882: 1973, sections 1and 3.

15.3 Gland bolting may be of one of the fonowing types.(a) Hinged bolt secured by either a headed bolt passed through the eye and secured by a Jlut or a pinpassed through the eye and effectively secured. Cotter pins are not acceptable as the sole securing dcvic:es.(b) Stud-bolt passed through a plain hole in the Bange on the bonnet neck and secured to the ftanF bytwo nuts.

(c) Stud-bolt screwed into a tapped hole in the Bange on the bonnet neck and secured by a lock nut.(d) Headed bolt passed through a plain hole in the flange on the bonnet neck.Headed bolts in slotted brackets on the bonnet neck shall not be used. Bolts, stud-bolts and nuts shall be

threaded metric or UNC and dimensioned in accordance with BS 4882, BS 1768 (below 1in nominal size),BS 1769, BS 3692 or BS 4190 except that square head, side head and tee head bolts are acceptable. Studsare not permissible.

15.4 Yoke bolting shall be threaded metric or UNC and dimensioned in accordance with BS 4882, BS 1769,

BS ~ or BS 4190. Studs are not permissible.

18. Operation

16.1 Valves shan be direct-handwheel operated unless otherwise specified in the order.

16.2 If chainwheel operation is required. the type of chainwheel shall be specified in the order which shallalso specify any chain to be supplied.

1'-3 If gear operation is required, the type of gearing and its arrangement and the design maximum differen­tial pressure across the valve sbal1 be specified in the order.

16.4 If actuator operation is required, the details of the actuator and its power supply together with the·design muimum pressure differential across the valve shall be specified in the order.

For multi-turn actuators the attachment dimensions shall be as specified in BS .••• • Flange attachmentdimensions of actuators to general purpose valves' (in course of preparation).

17.Bypua

17.1 A byppf I1W1 not be provided unless specifi.cdin the order.

14

as 1414 : 1975

" 17.2 Any bypass supplied shaI1be cxtcmal to the main valve and be of tile foIlowiDs m:(

DUn

SO to 100ISO to 2002SOto3003SO and larger

in1t1

Ii

18. Soft seal rings

18.1 Soft seal rings may be fitted in either the body seats or in the wedge seats uspecified by the purdwer.The rings shall be designed to compress down to the level of the metal seats to Jive a tight shut-off on bothsides of the wedge and thus provide a & double block and bleed' facility. Tbey sball also Jive a tight metal­to-metal seal through the valve if the soft seals are damaged or I'eIDO\'ed.

18.2 The seal rings shall be designed to withstand a minimum of 2000 cyclesof operation in dry atmosphericconditions and thcre shall then be no evidence of damage or cold flow, u revealed by spreading over themetal seats. The valves shall then meet the hydrostatic and air tests specified in BS 5146.

A Iin tapping fitted with a plug shall be provided in the bonnet for testing the double block and bleedfacility. This shall be located in position H (see figure 3) unless specified otherwise by the purdwer. Thetype of thread shall be stated if other than API Std 9 ..18.3 The cffective operating temperature range of soft seal valves will be limited by the service temperatureof the seal material

.Section three. Materl."

19. Shel'

The body and bonnet shall be of the material specified in the order, the selection being made from thoselisted in BS 1560 :Part 2. AD pressure containing parts involved in welding operations shall have the carboncontent restricted as follows: .

(a) 0.15 % maximum for carbon or carbon/molybdenum steels;(b) 0.15% maximum for S% Cr 1% Mo steeL

20. Bodyseat rings

A body seat ring made of a material different from its seating surface shall be of a material not inferior tothat of the sheD.

21. Bonnet gasket

Bonnet flange gaskets shall be metallic spiral wound as specified in BS 3381, or steel or soft iron, except that,for Class ISO valves only, compressed asbestos fibre complying with the requirements of BS 1832 is anacceptable alternativc. They shall be suitable for the pressure/temperature rating of the valve. Any metallicpart of the gasket shall have at least the same corrosion resistaDceuthe abeD.NOTE. Pree chlorides in compreaed ubcstoI fibre materials wbal UIIlClwith low .., or 8UItcDitic IIaiDleIa ••••• IIIIl1 ca.­stras corrosion craddq in the ••••• UId the UIC or alternative pakct materials IbouId be coasidered.

22. Wedge

A wedge·fitted with separate facing rings, or on which seatinl surflUlClare deposited by weldin•• sball be ofa material equal to that of tile sbeIl.

23. Yoke

A )'oJte separate from the bonnet shall be of carbon steel or of the same material as that of the sbclL

15

85'1.414 : 1975

24. Handwheel or chainwheel

. The handwhecl or chainwheel shall be of steel, malleable iron or nodular iron.

25. Handwheel or chainwheel nut

The handwheel or chainwheel nut shall be of copper alloy, steel, malleable iron or nodular iron. If of carbonsteel it shall be suitably protected against corrosion.

26. Yoke sleeve

The yoke sleeve shall be of non-rusting metal having a suitable bearing quality and a melting point above955°C.

27. Yoke sleeve retaining nut

The yoke sleeve retaining nut shall be of a material having a melting point above 955°C. Grey cast ironshall not be used. If malleable iron is used it shall comply with the requirements ofBS 310 for grade B340/12or grade B310/10. If spheroidal graphite cast iron is used it shall comply with the requirements of BS 2789grade 370/17 or grade 420/12.

28. Gland

A pne piece gland or any gland ftange shall be of steel. The bushing of a one piece bushed gland or thegland proper of a two piece gland shall be made of a material having a minimum melting point above 955°C.

29. Trim

%9.1 Trim comprises the following:(a) stem;(b) body scat surfaces;(c) wedge scat surfaces;(d) back seat bushing.

29.2 The trim materials shall be selected from those listed in table 2 and specified in. the order by quotingthe relevant nominal trim symbol.

%9.3 If a combination trim, e.g. CR 13 and eu-Ni, is specified, either material may be used for the body seatsurface. The other material of the combination shall be used for the wedge scat surface.

%9.4 Stems shall be of wrought material.

29.5 The temperature limitations of certain trim materials may restrict the pressure/temperature ratings ofthe. valve to which they are fitted.

30. l.8ntern ring

A lantern ring, when supplied, shall be of a material not inferior to that of the shell.

31. Stem packing

The packing shall be of braided asbestos containing a suitable corrosion inhibitor. Unless the order specifiesother packing or a higher packing design temperature, it shall be suitable for use with steam or petroleum .fluid at a minimum packing design temperature of 400 DC.

32. Bolting

32.1 Bonnet bolts shall comply with the requirements of BS 1506-621 grade A(BS 4882: 1973, section 3.grade B7) and nuts shall comply with the requirements of BS 1506-162 (BS 4882: 1973,section 3, grade 21:1)unless other bolting material is specified in the order.

32.2 Material for gland and yoke bolting shall be carbon steel of at least 392 N/mm2• tensile strengthunless other bolting material is specified in the order. Free cutting steels shall not be used.

• 1 N/mm1 - 1 MPa.

16

..

...,

Table 2, Trim materials. hardn ••• and acceptable specifications

I 23••5,1• ,10II12IS

Maa.tII tnI ,M~ HrIDeII...-..-.AcceptaWe••••••• lIfed8ca'"

N--..I tria .BackBackCutt p•.•••Bar

sraIIoISeat •• tSeat •• tMfueI -••••••••1MfueISte.•••••••BS ASTMBSASTMBSASTM

CRU

uCruCruCrI2002501504-7UA 3S1-CAIS1503-410824A 182-P61506-713A 276-410

I•.•• Ti

I•.••I•.••I•.••Manufacturer's standard1504-821 n-503-321540A 182-P3211506-821 nA 276-321Cr-NI-Ti

Cr-NI-nCr-NI-n 1503-321550

I•.•• Nb

I•.••11-111-1Manuf.cturer'l standard1504-821 NbA35I-CFIC1503-347540A IU-P3411506-121 NbA 276-347Cr-NI-Nb

Cr-NI-NbCr-NI-Nb 1503-347550

11-10-2

11-10-211-10-211-10-2Manullcturer'lltandardlS04-I45 BA 351-CFlM1503-316541A 182-F3161506-145A 276-316Cr-Ni-Mo

Cr-NI-MoCr-NI-Mo

11-12-3

'11-12-311-12-311-12-3Muulac:Wnrr'l standard1504-146-1503-316541--A 276-311Cr-NI-Mo

Cr-Ni-MoCr-Ni-Mo

25-20

25-2025-2025-20Manufactunr'11t&DdanI---A IIZ-P310--Cr-NI Cr-NiCr-NI

HP

66-26-5--350U--- -----Co-Cr-W - uCr13 Cr-2002501504-713A 351-CA151503-410821A 182-F61506-113A 216-410

CRU

13Cr13CruCr250t2002501504-113A 351-CA151503-410821A 182-P61506-7UA 276-410.nd Cu-NI

Cu-NI--115'--Manufacturer'l ltandard with JO" nickel min.-CRU I3.CruCruCr~2002501504-7UA35I-CA151503-410821A 182-F61506-713A 276-410.nd HP

66-26-5--3SO'1--- -----Co-Cr-W

NI-Qa

NI-CuNI-CuNI-Qa---3071 NAI---3016NAI3-ADo)'

Allo)'Allo)'

AI

AluminiumAlumhuumAluminiumMaaulacturer'l standardI400-AB I,B 14I-952A.2812-CA103,1124-642-2874-CAI03,B 150-642bronze

bronzebronze 1400-AB2B 14I-9"D2872-CAI04B 124-6302174-CAI041150-630

B

Bronze-BronzeManuf.cturer'1 ltaDdard1400-01B 584-905----I400-L02 B 584-136- M.n •••••M.n •••••••Manufacturer'1 ltandard1400-HTBIB 584-1642872-CZ114B 138~752874-CCZ114B 13~75

bronzebronze B 584-165

• See 8S 240 : Part I,

t Cutin •• Dot applicable to ltam materlall; - •••• ,For .Ultcnlde triml the bact IMt ma)' altcruallvcl)' '* • wckl deposll of 11Msame nominal material composidOD U tbc &rimor • weIded-oalaarcl facia •. For hard faced (HF) trim &bebact _t ...,

altcra.&1vc1,be a wcIdcd-on hard fldDI .,' .. '

~ Bod)' aDd wed•. scall~ 250 H mlD., ••• 'SO at min. d1f1'e•.• daI between bod, •••••••••• seat eurr-.Dltrerendal haidncu bctwelll bod, aad wed•• ICft lurtaca II nol rIClwred. 'DlfI'craadalhardneu betweeD bod, and wed•• scat surf.ces shaD be the manullc:tunr'l standard. ' .

CDen••••~••••~..••••to...-...

01

as 1414 .: 1.975

33. Plugs

Material for shdl plugs shall be not inferior to that of the shell.

34. Nameplate

34.1 For valves of nominal size 150 mID (6 in) and larger the nameplate sbal1 be of 18-8 Cr-Ni steel ornickel alloy attached to the valve by pins of similar material or by welding.

34.2 For smaller valves, the nameplate material and attachment shall be of corrosion resistant material inaccordance with the manufacturer's standard. Brass and aluminium are acceptable.

35. Soft seals

Soft seals shall be of tilt manufacturer's standard material for tilt duties specified. Any retaining ring in .the wedge shall be of the same material as the stem but any fixing screws shall be of 18-8 Cr-Ni steel.

36. Special applications

When valves are specified for highly corrosive services or environment, or for low temperature service, thematerial specification for all parts shall be subject to agreement between the purchaser and the manufacturer.

Section four. Marking

37. Required markings

Every valve in accordance with this standard shall be clearly marked as follows.(a) Body and bonnet markings shall be integral.(b) Every valve shall have a nameplate securely fastened to iL

38. ,Body and nameplate markings

Body and nameplate markings shall be as follows.(a) Nominal size designation. The numeral(s) denoting the nominal size prefixed by the letters DN, e.g.DN 100 (see clause 6).(b) Class rating. The numerals denoting the class rating (see clause 4).(c) Body material identification. Standard symbol from BS 1560 : Part 2: 1970, table 25.(d) Manufacturer's name or tradc mark.(e) The number of this British Standard, i.c. BS 1414.

39. Body and bonnet markings

39.1 Melt ideatiflcatloa. Melt identification is required on all pressure containing steel castings.

39.2 lUag joint 1UIIIIber.Pipe end flanges and bodyfbonnet ftanges grooved for ring joints and the rings tor be used with them shall be marked with the corresponding ring number (c.g. R2S). This identification shall

be placed on the rim of both pipe end flanges or the bonnct end ftange of tilt body as applicablc and on theoutside periphery of the ring. For ring numbers see appendix A. In thc case of non-standard ring jointsfor bodyfbonnet flanges the flange and ring shall be marked R SpL.

40. Nameplate markings

<to.l Pressare/temperatuft restrlcdous. Any pressure or temperature restrictions within· the appropriateratings given in BS 1560 : Part 2 that may be imposed by the manufacturer duc to limitations on materialsor design shall be shown on tilt nameplate.

Such special limiting pressure/temperature ratings shall also comply with the appropriate BS 1560 : Part 2rating tabJe~

18

BS 1414 : 1975

40.2 VaiTCtrim hhDt •.••••• Trim materials shall be incticated in the following order, using the appropriatesymbol from table 2,

1. STEM 2. WEDGE 3. SEAT

as in the example below:

STEM CR 13WEDGEHFSEAT CR 13

CR13or CR 13 HF CR. 13 or HF

CR 13

f

40.3 Ideatiftcatioa ••••••.• The manufacturer's figure or number identifying the valve in all respects shallbe shown. The same figure or number shall therefore only be used for valves which are identical in design,detail, dimensions and material and which have interchangeable parts.

41. Additional markings

Additional markings may be used at the option of the manufacturer provided they do not conflict withany of the markings specified in this standard.

42. Omission of markings

41.1 Where the size or shape of the valve body precludes the inclusion of aU the required markings, theymay be omitted from the body only as found necessary subject to the approval ofthc purchaser. The sequenceof omission shall be as follows.

1. Nominal size 2. Manufacturer's name or trade mark 3. Class rating.

41.2 The number of this British Standard may be omitted from the body or the nameplate, but not fromboth, at the manufacturer's option.

Section five. Inspection and test

43. Inspection and test requirements

Each valve in accordance with this standard shall be inspected and pressure tested in accordance with therequirements of BS 5146.

Section six. Shipping

44. Preliminary

After inspection and before preparation for despatch all valves shall be thoroughly cleaned and dried.

46. Preparation for despatch

45.1 CoatiDg. Coating of valves shall be as follows.(a) Unmachined cxtcmal surfaces of the valves shall be painted with aluminium finish paint, except foraustenitic steel vaMs which shall net be painted.(b) Machinedorthreaded surfaces shall be coated with an easily removable rust protective (see BS 1133:Section 6) except that this shall not be required for austenitic steel components.

45.2 EDd protectfoa. After complying with the requirements of 4S.1, body end ports. flange races and butt­welding ends shall be covered with suitable close fitting protectors to protect the machined ends and preventingress of dirt and moisture.

45.3 Stem ,.,.)[ •••• The stem packing shall be fitted bet~re shipping.

45.4 Wedp. The walge shall Ue closed before shipping except in tl-e case of soft seal valves where thewedge shall be baclrcd oft' to relieve the pressure on the seals..

48. Packaging.

Valves shall be so pldaged as to minimize the possibility of damage during storage or transit. Wbaetropical or special pKkaging is necessary. the purchaser shan specify his requirements ..

19

BS 1414, : 1975

Appendix A. Particular dimensions for each cia •• of valve

Table 3. Dimensions of Class 150valv_

1 13 ••56

NcIIDiIm_

Iaside dfaIIIeter ofBedy ••• bc8IetRiDa IIIIIIIberSt_ ••••••••. "fIlIDpI ftIves (miD)-

~(-)r_ rial ••••(mID.)

mm

em)mm mm mm·15

(1)15 6.4R1515.932t

(lilt32 6.4R1715.940

(1i)38 6.4R1917.550

(2)51 8.7R2219.065t

(2i)t64 9.5R2S19.080

(3)76 10.3R2922.2100

(4)102 11.1R3615.4150

(6)152 11.9R4328.6200

(8)203 12.7R4831.82SO

(10)2S4 14.3RS234.9300

(12)305 15.9RS638.1350

(14)337 16.7RS941.3400

(16). 387 17.5R6444.4450

(18)438 18.2R6847.6SOO

(20)489 19.0R7250.8600

(24)591 20.6R7657.2650

(26)635 21.4-60.3

700(28)686 22.2-63.5

750(30)737 23.0-63.5

900(36)876 25.4-69.8

1050(42)1020 28.6-82.6

• For details of wddiog ends includina inside diameters ice fiaurc 2-

t These sizes have been retained for the PUIpOIe of replacilli existing valves. Their use for new construction in pipinl systemsusing BS 1560 : Part 2 flanges should be a¥Oided

20

BS 1414 : 1975

Table 4. Dimensions of Class 300valves

I 23 ••5,N~'"

IIIIide diuIeter f1lBodJ •••••••••RiDI--sa.•••••.8IIIpd ftITe8 (•••• ).

~( ..•.)fGr riDe joim(..•.)

DUD

(in)mm nun mm25

(1)25 6.4R1615.9

32t

(lUt32 6.4R1815.9

40(li).38 7.9R2019.0

SO

(2)51 9.5R2319.0

65t

(21)t64 11.1R2619.0

80(3)76 11.9R31t22.2

100(4)102 12.7R3725.4

ISO

(6)152 15.9R4531.8

200(8)203 17.5R4934.9

2SO(10)2S4 19.0RS338.1

300(12)305 20.6RS741.3

3SO

(14)337 22.2R6144.4400

(16)387 23.8R6547.64SO

(18)"432 25.4R69SO.8

SOO

(20)483 27.0R73S4.0600

(24)584 30.2R7763.56SO

(26)635 31.8-69.8

700(28)686 33.3-76.2

7SO

(30)737 34.9-82.6

900(36)876 41.3-88.9

10SO(42)1020 44.4-101.6

• For dctllils of wcldiq ends indudin, inside diameters see fiaure 2.

t These sizes have been retained only for the purpose of repJaciD, existin, valves. Their use for new construction in pipiqsystems usin, BS 1560 : Part 2 ftanges should be avoided. "

t For valves of 80 mm (3 in) nominal size. if intended to be used in conjunction with lapped flanges, tbe rin, number sball beRJO.

Table 5. Dimensions of Class 400 valv ••

I 23 ••I56NcaIiIaI_

IDIide diameter f1lBodJ ••• boaaetRJac--Stem diamet •.ftaapd ftIYes (•••••).

tbickDeII (••••• )for n.)oiIls(...•..)

mm

(in)nun mm mm100

(4)102 12.7R3728.6ISO

(6)152 16.7R4534.9200

(8)203 19.0R4938.12SO

(10)2S4 21.4R5344.4300

(12). 305 23.8RS747.63SO

(14)333 27.0R6147.6400

(16)381 28.6R65SO.8

4SO(18)432 30.2R6957.2

SOO(20)479 33.3R7363.5

600(24)575 36.5R7769.8

• For details of weldina ends indudiq inside diametcn see ftaure 2.

21

BS 1414·: 1975

Table 6. Dimensions of Class 600 valv ••

1 23 456

NoIaiIIII•••

IIIIide diameter ~BodJ ••• 11-*1lJIIa--Stea •••••••fIaDged ftlfta (•••• ).

thleh- (••••)'_rial ••<-IL)

mm

(in)mm mm mm25

(1)25 7.9R1615.9

32t

(li)t32 8.6R1815.9

40(ll)38 9.3R2019.0

SO(2)51 11.1R2319.0

65t

(2i)t64 11.9R2622.2

80(3)76 12.7R31:25.4

100(4)102 15.9R3728.6

ISO(6)152 19.0R4538.1

200(8)200 25.4R4941.3

2SO(10)248 28.6RS347.6

300(12)298 31.8RS7SO.8

3SO(14)327 34.9R6157.2

400(16)375 38.1R6560.3

4SO(18)419 41.3R6963.5

SOO

(20)464 44.4R7369.8600

(24)559 SO.8R7776.2

• For detaiJs of welding ends including inside diameters see flame 2.

t These sizes have been n:tamed only for the purpose of repladnl cxistiq valves. Their use Cor new coDStnx:tion ia pipiDasystems using BS 1560 : Part 2 flanges should be avoided.

: For valves of 80 mm (3 in) nominal size. if iatended to be UIed ia c:oojuDcdon with 1appecl ftan8es. the rial DUmber Iha1lbe RJO.

Table 7. Dimensions of Class 900 valv ••

1 23 456

NGmlMlIize

IIIIide cUameter~BodJ ••• bo.etlUDI ••••••.St_ •••••fIaDged ftlfta (•••••).

•101.r1r- (-.)far rial ••••(mIL)

mm

(in)mm mm mm80

(3)73 19.0R3128.6100

(4)98 21.4R3731.8ISO

(6)146 26.2R4541.3200

(8)190 31.8R4947.62SO

(10)238 36.5RS354.0300

(12)283 42.1RS757.23SO

(14)311 46.0R6260.3400

(16). 356 52.4R.6663.54SO

(18)400 57.2R7076.2SOO

(20)444 63.5R.7482.6600

(24)533 73.0R.78101.6

• For details of welding ends inc1udiDa inside diametcn •• lain 2.

22

c

as 1414 : 1975

Tabla 8. Dimensions of,CI ••• 1&00 vaIve8

1 23 ••5,N••••••••

IIIIiIIe~ '"..,......•••••••..- .••••• ••• c.&).

tWl~(IdI.)r._ •.(11II.) -

mm

em)mm mm mm2S

(1)22 12.7R,1619.0

32t(ll>t29 14.2R,1819.0

40(1i)35 15.0R2022.2

50(2)48 19.0R.242S.4

65t(2i)t57 22.2R.2728.6

80(3)70 23.aR.3531.8

100(4)92 28.6R.3934.9

150(6)137 3a.1R,4644.4

200(8)178 47.6R50$4.0

250(10)222 57.2R5463.5

300(12)264 66.7R.5869.8

350(14)289 69.aR,6376.2

400(16)330 19.4R6782.6

450(1a)371 88.9R7195.2

500(20)416 98.4R75101.0

600(24)498 114.3R19127.0

--

-

• For details of wddiq c:o.daiDc:ludiDi iDlide diamctcn •• Ipre 2-

t These sizes bave been m.ined oa1y for the purpoIe or rcpIIciDa exiatiq valva. Their \lie fOl' DCW COIIIInICtioDiD pipiaaaystemI usiq BS 1560 : Part 1ftaDpllbou1cl be awided.

Table 9. Dimensions of Cia •• 2&OOvaIWe

1 23 ••5,--

N.-..allle

w.-..•••• '"...,......••••••••••••••~ oj ••• (.IL) •

••••••••••• (11II.)•••••••(IdI.).mm

(in)IDJD DUD mm2S

(1)19 15.1Ria19.032t

(li)t2S 17.5R.2119.040

(Ii)29 19.0R2322.250

(2)38 22.211262S.4

65t(2i)t48 2S.4R2I28.6

80(3)57 30.2R.3231.8

100(4)- 73 35.7R.3834.9

150(6)111 48.4R4747.6

200(a)146 61.9B.Sl60.3

250(10)184 67.5B.S573.0

300(12)219 86.5R,60a2.6

• For cletaiII of weldin, ends includ.lftl inIide diuneters lee ftpre 2-

t These sizeI have been retained only ror the purpclIC or repIacina existilll valves. Their \lie rOC'new c:oostrudion in pipiqsystems _III BS 1560 : Part 2 ftanaa shoukl be awided.

23

65··1414 : 1975

AppendixB

Application to piping systems with BS 4504 flanges

B.l GeaeraL Valves in accordance with this British Standard. BS 1414. may be supplied for use in pipingsystems with BS 4504 flanges when specified by the purchaser. When this is the case alJ the requirements ofthis BritishStand~. BS 1414. apply, with the qualifications specified in IU to 8.7 ..

B.2 Plaoun;Jtemperature ratings. The pressure/temperature ratings of valves with BS 4504 flanges shall bein accordance with BS4504 : 1969,table AI. Pressure/temperature ratings for valves in materials other thanthose listed in BS 4504: 1969, table Al shall be agreed between the purchaser and the manufacturer.

B.3 NomiDalprasare _ dus ratings IDd nomiDalsize range. Valves in accordance with this appendix withflanges of the nominal pressure ratings given in column I of table 10 shall have the same face-to-facedimensions as valves with BS 1560 : Part 2 flanges of the corresponding class ratings in column 2. Column 3gives the applicable nominal size range.

Table' O. Nominal pressure and class ratings and nominal size range

1 I~34 .

RatiII8

NODIIDal size ruse

PN

CuI

mm

(in)10

ISOSOto 600·(2 to 24)16

ISOSOto 600(2 to 24)25·

..300 25 to 600(1 to 24)40

30025 to 600(1 to 24)64

6002S to 600(1 to 24)100

6002S to 600(1 to 24)160

9002S to 300(I to 12)2SO

150025 to 300(I to 12)320

2SOO2S to 2SO(l to 10)400

250025 to 200(1 to 8)

B.4 Body tad flaps8.4.1 Dimensions. Body end flange dimensions s~1 comply with the requirements of BS.4504 except thatflange thicknesses may be the appropriate values from BS 1560: Part 2. Flange thicknesses shalt be not lessthan those specified in BS 4504. When flange thicknesses comply with those specified in BS 4504. the neckdimensions shall also comply with the requirements of BS 4504.

. 8.4.2 Spot-facing or back-facing. The requirements of BS 1560 : Part 2 for spot-facing or back-facing shallbe complied with..

B.4.3 Finish of jow surface. The joint surface finish shall comply with the requirements of BS 4504.

B.S Iaspecdoa IDdtestfng. Va~ves shall be inspected and tested in accordance with BS 5146 except tbathydrostatic test pressures shall comply with the values given in table 11.

24

BS 1414 : 1975

Teble11. Hydroatlltlc teat pr•• ura

1 Z3

NomW'--"

TIIt..-..Iar••••••

bar·

bar·bar·10

1510

16

2416

2S

37.52S

40

6040

64

9664

100

ISO100

160

240160

2SO

3752SO

320

480320

400

600400

8.6 M'aItiDg. When supplied for use in piping systems with BS 4504 lanses valves shall be permaDCIltIy

marked with the appropriate nominal pressure rating (i.e. PN •• ). nus marking may replace or supplementthe n:quirements of clause 38(b) and shall appear on aU BS 4504 lanses used.

8.7 lDformadoa to be supplied by tile pardlaler. The information to be suppliecl.by the purchaser shall beas listed in clause 7 of this standard except that <a) shall be replaced by the following. .

<a) State that valves arc to comply with the n:quirements of this appendix and state nominal pressureratiDg and nominal size.

• I bar - 105 N/m2 - 100 kPa.

26

BSIpublications referred to in this standardThis standard makes.aCI'CIICC 10 the rollowiDa British Standards:(''IS Z40

BS 310BS 1133BS 1400BS 1501-6BS 1503BS 1S60BS 1600BS 1768BS 1769BS 1832BS2080BS2693 :BS2789BS 2172BS2874BS 3071BS3076BS 3293BS 33S1BS 3381BS 3600BS 3692BS 3799BS4190BS 4504BS4882BS SI46BS ••••

•Method rot BrincD hardness testPart I Testial of meals

Blackheut malleable iron c:astinp

~ainlcodeSection 6 Temporary protection or metal surfaces apinst corrosion (durinl tranIpOI't aaclltOrqe)

Copper alloy inaots and copper and copper alloy c:astiDas

Steels ror UIe in the chemical, petroleum and allied industries

Steels ror finld and unfired pressUre veaeJs. Foqinp

Steel pipe ftaages and ftan&ed fittinp (nominalllizes l in 10 24 in) ror the petroleum iDdaIbyPart 2 Metric climensions

Dimeusions of steel pipe ror the petroleum iDdustryPart 2 Metric units

Unified precision hexagon bolts. ICr'e'WIand DUts(UNC and UNF threads). Normal __

Unified black hcuaon bolts, ICI'eM and nuts (UNC and UNF threads). Heavy IerieI

Oil resistant comprased asbestos fibre jointiDa

Face-to-face. c:entre-to-race, encl-to-end and ccntt.to-encl dimensions of ftanpd and butt-wddinl eDd steel YaIftIror the petroleum, petrochemical and allied industria

Screwed studsPart I GenaaI purpose studs

Iron castinp with spheroidal or nodular paphite

Copper and copper alloys. ForaiDIltodt aDd foqinp

Copper and copper alloys. Rods andlCCtions (other than fOQiDlItDCk)

Nd.eI-<OPPer alloy castinp

Ndtd and nic:kd aIJoyL Rods

Carbon steel pipe ftanacs (ova' 24 in nomiDaIlize) fot the petroleum iDcIUIb'y

Pipina systems for petroleum refineries and petrochemic:aI plants

Metallic: spiral wound pskets for the petroleum aDd ~ot-iIadUltry

Dimensions and muses per unit Jenath of wddecI and seamIesa steel pipca and tubes ror preMUN JNIPC*I

ISO metric precision hexqon bolts, ICRWI and DUts

Forpd steel pipe fitlin••• screwed andlOCket-weldina for the petroleum industry

ISO metric bbIdt hexaaon bolrs. ICI'CWIand auts

Flanies and boltinl for pipes, valws and ftttinp. Meuic ICries .

Boltin. for ftanaes and pressure containina purposa

Inspection and test of steel valves ror the petroleum, petrodIcmicaI and allied industries

F1anae attadunent dimalsiollS or actuators 10 aencnI purpose valves

• In coune of preparation.

ISBN: 0 S80 08991 6

ISBN: 0 S80 08991 6

B5 1414 : 1975

..•••CD

Uf

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