1、BRITISH STANDARDBS 5154:1991Specification forCopper alloy globe,globe stop and check,check and gate valvesLicensed Copy:Institute Of Technology Tallaght,Institute of Technology,Thu Dec 21 09:32:35 GMT+00:00 2006,Uncontrolled Copy,(c)BSIBS5154:1991This British Standard,having been prepared under the
2、directionof the Piping Systems Components Standards Policy Committee,was published underthe authority of the Standards Board and comes intoeffect on 31 May 1991 BSI 02-1999First published as BS 1952,BS1953 and BS 2060 in 1953 and1956Second editions(separately)October 1964Metric edition,as BS 5154,Oc
3、tober 1974Third edition December 1983Fourth edition July 1989Fifth edition May 1991The following BSI references relate to the work on this standard:Committee reference PSE/7Draft for comment 90/76614 DCISBN 0 580 19619 4Committees responsible for this British StandardThe preparation of this British
4、Standard was entrusted by the Piping Systems Components Standards Policy Committee(PSE/-)to Technical Committee PSE/7,upon which the following bodies were represented:Amalgamated Union of Engineering WorkersAssociated Offices Technical CommitteeAssociation of Bronze and Brass FoundersAssociation of
5、Building Component Manufacturers Ltd.British Chemical Engineering Contractors AssociationBritish Compressed Gases AssociationBritish Foundry AssociationBritish Gas plcBritish Maritime TechnologyBritish Plumbing Fittings Manufacturers AssociationBritish ShipbuildersBritish Valve and Actuator Manufact
6、urers AssociationChartered Institution of Building Services EngineersCopper Development AssociationDepartment of the Environment(Property Services Agency)Electricity Supply Industry in England and WalesEnergy Industries CouncilEngineering Equipment and Materials Users AssociationGAMBICA(BEAMA Ltd.)H
7、ealth and Safety ExecutiveInstitute of British FoundrymenInstitution of Chemical EngineersInstitution of Gas EngineersInstitution of Mechanical EngineersInstitution of Water&Environmental Management(IWEM)Society of British Gas IndustriesSteel Casting Research and Trade AssociationWater Authorities A
8、ssociationWater Companies AssociationAmendments issued since publicationAmd.No.Date CommentsLicensed Copy:Institute Of Technology Tallaght,Institute of Technology,Thu Dec 21 09:32:35 GMT+00:00 2006,Uncontrolled Copy,(c)BSIBS 5154:1991 BSI 02-1999 iContentsPageCommittees responsible Inside front cove
9、rForeword iiSection 1.General1 Scope 12 Definitions 13 Valve series 14 Types of valves 25 Size ranges 26 Pressure designations 27 Pressure/temperature ratings 28 Dimensions and tolerances of body ends 2Section 2.Design9 Design 6Section 3.Materials10 Materials 10Section 4.Pressure testing11 Pressure
10、test requirements 13Section 5.Marking12 Marking 14Section 6.Preparation for storage and transportation13 General 15Appendix A Information to be supplied by the purchaser 16Appendix B Specification for Alloy A and Alloy B 16Table 1 Nominal sizes of valves according to PN or Class designation 3Table 2
11、 Pressure/temperature ratings for valves with flanged or threaded ends 4Table 3 Pressure/temperature ratings for valves with capillary or compression ends to BS 864-2 4Table 4 Face-to-face and centre-to-face dimensions of flanged valves 4Table 5 Minimum outside diameters of sealing faces for paralle
12、l threaded ends to BS 2779 5Table 6 Minimum flow-way area 6Table 7 Minimum stem diameters 8Table 8 Minimum wall thicknesses 9Table 9 Metallic materials for the manufacture of series A valves 11Table 10 Metallic materials for the manufacture of series B valves 12Table 11 Duration for production press
13、ure test 13Table 12 Chemical composition of alloy A and alloy B 16Table 13 Mechanical properties of castings 17Table 14 Mechanical properties of alloy B extrusions 17Publications referred to Inside back coverLicensed Copy:Institute Of Technology Tallaght,Institute of Technology,Thu Dec 21 09:32:35 G
14、MT+00:00 2006,Uncontrolled Copy,(c)BSIBS5154:1991ii BSI 02-1999ForewordThis edition of BS5154 has been prepared under the direction of the Piping Systems Components Standards Policy Committee.It supersedes the1989 edition,which is withdrawn.BS 5154:1991 introduces technical changes to bring the stan
15、dard up-to-date but it does not reflect a full review of the standard,which will be undertaken in due course.Revised text is indicated by a sideline in the margin.This edition reflects current manufacturing practice and recognizes the reclamation of valves through the impregnation of castings.The sa
16、tisfactory performance of any valve depends on design,manufacture,correct installation and maintenance;this standard specifies requirements for design and manufacture but not for installation and maintenance,guidance on which is given in BS6683.This standard allows options to the standard product,th
17、e preferred option being indicated by a note to the appropriate clause.Particular requirements should be indicated by the purchaser,as stated in Appendix A,otherwise the manufacturer will supply the product with the following preferred options:a)means of operation(see9.9.2);b)direction of operating
18、effort to close(see9.9.2);c)trim materials(see10.1);d)flange ends drilled(see8.1.1).Throughout this standard,all pressures specified are gauge pressures.Safety Code.For purchasers of valves to BS5154,it is emphasized that strict compliance with the manufacturers instructions and recommendations for
19、installation,usage and maintenance is necessary.Where there is an appropriate application standard or code of practice,it is the responsibility of the purchaser to ensure that such requirements are complied with,e.g.attention is drawn to BS759-1.A British Standard does not purport to include all the
20、 necessary provisions of a contract.Users of British Standards are responsible for their correct application.Compliance with a British Standard does not of itself confer immunity from legal obligations.Summary of pagesThis document comprises a front cover,an inside front cover,pages i and ii,pages1
21、to 18,an inside back cover,and a back cover.This standard has been updated(see copyright date)and may have had amendments incorporated.This will be indicated in the amendment table on theinside front cover.Licensed Copy:Institute Of Technology Tallaght,Institute of Technology,Thu Dec 21 09:32:35 GMT
22、+00:00 2006,Uncontrolled Copy,(c)BSIBS5154:1991 BSI 02-1999 1Section 1.General1 ScopeThis British Standard specifies design,details of body ends,materials,test requirements,marking and preparation for storage and transportation,of copper alloy valves of globe,globe stop and check,check and gate type
23、s of the sizes specified in clause5 and the pressure designation given in clause6.Two valve series,A and B,are specified(seeclause3),each series differing in its maximum temperature ratings.The reclamation of valves through the impregnation of castings is a recognized practice within this standard b
24、ut the impregnation process is not defined.NOTE 1The titles of the publications referred to in this standard are listed on the inside back cover.NOTE 2Valves which have failed the initial shell pressure test may be reclaimed,using an impregnation process which is permitted only by written approval o
25、f the purchaser and his acceptance of the manufacturers proposed method of reclamation.2 DefinitionsFor the purposes of this British Standard the following definitions apply.2.1 nominal size(DN)a numerical designation of size that is common to all components in piping systems other than those compon
26、ents designated by outside diameters or by thread size.It is a convenient round number for reference purposes and it is normally only loosely related to manufacturing dimensionsNOTE 1Nominal size is designated by the letters DN followed by a number,e.g.DN100.NOTE 2This definition is identical with t
27、hat given in ISO6708,published by the International Organization for Standardization(ISO).2.2 nominal pressure(PN)a numerical designation which is a convenient rounded number for reference purposes.All equipment of the same nominal size(DN)designated by the same PN number shall have compatible matin
28、g dimensionsNOTE 1The maximum allowable working pressure depends on materials,design and working temperatures and should be selected from the tables of pressure/temperature ratings given in this standard.NOTE 2Nominal pressure is designated by the letters“PN”followed by the appropriate reference num
29、ber,e.g.PN10NOTE 3This definition is identical to the definition given in ISO7268.2.3 classa numerical designation for reference purposesNOTE 1The maximum allowable working pressure depends on materials,design and working temperatures,and should be selected from the tables of pressure/temperature ra
30、tings given in this standard.NOTE 2Class is designated by the word Class followed by the appropriate reference number.2.4 face-to-face dimensions(for straight pattern flanged valves)the distance,expressed in millimetres,between the two planes perpendicular to the valve axis located at the extremitie
31、s of the body end ports2.5 centre-to-face dimensions(for angle pattern flanged valves)the distance,expressed in millimetres,between the plane located at the extremity of either body end port and perpendicular to its axis and the other body end port axis2.6 impregnationthe process whereby the porosit
32、y within a casting is impregnated with a fluid sealant which is subsequently polymerized to produce a solid seal3 Valve series3.1 Series A valvesThe upper temperature limit for series A valves shall be(seeTable 2 in respect of pressure/temperature ratings):a)a temperature of260C for flanged and thre
33、aded valves with metallic disk and seating surface materials;orb)the temperature limitation of the disk material or the impregnation process if such is below260C,when the valve is fitted with renewable non-metallic disks and/or constructed from an impregnated casting.NOTE 1Series A valves are only s
34、pecified with flanged or threaded ends.NOTE 2Temperature limitations of the disk material and/or impregnation process are marked by the manufacturer(see12.2).3.2 Series B valves3.2.1 Valves with metallic disks and seats.Except where the valve has been constructed from an impregnated casting,pressure
35、 and temperature limitations for series B valves with metallic disk and seat materials shall be as specified in clause7.NOTE 1The temperature limitations for series B valves with flanged or threaded ends are given inTable 2 and with capillary or compression ends inTable 3.NOTE 2Temperature limitatio
36、ns of valves constructed from impregnated castings are marked by the manufacturer(see12.2)Licensed Copy:Institute Of Technology Tallaght,Institute of Technology,Thu Dec 21 09:32:35 GMT+00:00 2006,Uncontrolled Copy,(c)BSIBS5154:19912 BSI 02-19993.2.2 Valves with non-metallic disks.The pressure and te
37、mperature limitations for series B valves with renewable non-metallic disks and/or impregnated castings shall be the temperature limitation of the disk material and/or the impregnation process when such is lower than that specified in clause7.4 Types of valves4.1 GeneralValves shall be one of the ty
38、pes specified in4.2 to4.4,having flanged,threaded,capillary or compression ends,integral or renewable body seats and screwed,union or bolted bonnets or covers.4.2 Globe valves and globe stop and check valvesThe valves shall be of the rising stem type with inside or outside screw of one of the follow
39、ing body patterns:a)straight;b)angle;c)oblique,or Y pattern.4.3 Check valvesCheck valves shall be one of the following types:a)swing type,for use with the axis of the body ports horizontal or vertical1);b)lift type of the following designs and body patterns:1)piston:i)straight;ii)angle;2)disk:i)stra
40、ight;ii)vertical;iii)angle.4.4 Gate valvesGate valves shall be either of the inside screw type with rising or non-rising stem or of the outside screw type with rising stem.In either case they shall be of one of the following types:a)solid or split wedge;b)double disk;c)parallel slide.5 Size ranges5.
41、1 Flanged endsThe nominal sizes of flanged ends for valves designated by nominal pressure(PN)and Class shall be as shown inTable 1.5.2 Threaded endsThreaded ends in accordance with either BS21 or ANSI/ASME B1.20.1 shall be as follows:,1,1,1,2,2,3,4.5.3 Capillary or compression ends in accordance wit
42、h BS 864-2The pipe outside diameters,expressed in millimetres,for use with capillary or compression ends in accordance with BS864-2,shall be as follows:8,10,12,15,18,22,28,35,42,54,67.6 Pressure designations6.1 Flanged endsFlanged valves shall be designated by nominal pressure(PN)or Class,as appropr
43、iate,and selected from the following:PN16,Class150,PN25,PN40,Class300.6.2 Threaded endsThreaded valves shall be designated by nominal pressure(PN)and selected from the following:PN16,PN20,PN25,PN32,PN40.6.3 Capillary and compression endsValves with capillary or compression ends shall not have pressu
44、re designations.7 Pressure/temperature ratingsValves with flanged or threaded ends shall have the maximum pressure/temperature ratings for fluids given inTable 2.Valves with capillary or compression ends shall have the maximum pressure/temperature rating for fluids given inTable 3.Subject to the lim
45、itations of clause3,valves with non-metallic disks and/or impregnated castings shall have the maximum temperature limitation of the non-metallic disk and/or the impregnation process.The marking of such valves shall be in accordance with clause12.8 Dimensions and tolerances of body ends8.1 Flanged en
46、ds8.1.1 Dimensions of flanges.Dimensions of flanges shall be in accordance with BS4504-3.3 for PN16,PN25,and PN40 valves and in accordance with BS1560-3.3 for Class150 and Class300 valves.NOTE 1Flanged ends may be supplied undrilled(seeAppendix A).NOTE 2Attention is drawn to requirements for joint f
47、aces in BS4504-3.3 and BS1560-3.3.1)Swing check valves can only be used in vertical lines when the flow is in an upward direction.Licensed Copy:Institute Of Technology Tallaght,Institute of Technology,Thu Dec 21 09:32:35 GMT+00:00 2006,Uncontrolled Copy,(c)BSIBS5154:1991 BSI 02-1999 38.1.2 Face-to-f
48、ace and centre-to-face dimensions.Face-to-face and centre-to-face dimensions of flanged valves shall be as given inTable 4 for other than oblique pattern globe or oblique pattern lift check valves.NOTEFace-to-face and centre-to-face dimensions for oblique pattern valves are not specified;they are at
49、 the manufacturers option.8.1.3 Tolerances on face-to-face and centre-to-face dimensions.The tolerances on face-to-face dimensions and centre-to-face dimensions of flanged valves shall be 2.0mm.8.1.4 Tolerance on alignment8.1.4.1 Straight and oblique pattern valves.Jointing faces of body end flanges
50、 shall be machine finished at90 0.5 and concentric to a common centre line passing through the body end ports.8.1.4.2 Angle pattern valves.Jointing faces of body end flanges shall be machine finished at90 0.5 and concentric to the centre line of the body end ports,and at right angles to each other.8
