BS EN 558-2-1996 工业用阀.法兰管系统使用的金属阀.面至面和中心至面的尺寸.分类设计阀.pdf

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1、BRITISH STANDARD BS EN 558-2:1996 Industrial valves Face-to-face and centre-to-face dimensions of metal valves for use in flanged piping systems Part 2: Class-designated valves The European Standard EN 558-2:1995 has the status of a British Standard ICS 23.060.00 BS EN 558-2:1996 This British Standa

2、rd, having been prepared under the direction of the Engineering Sector Board, was published under the authority of the Standards Board and comes into effect on 15 May 1996 BSI 06-1999 The following BSI references relate to the work on this standard: Committee reference PSE/7 Draft for comment 91/815

3、49 DC ISBN 0 580 24721 X Committees responsible for this British Standard The preparation of this British Standard was entrusted to Technical Committee PSE/7, Valves, upon which the following bodies were represented: Amalgamated Engineering Union Association of Bronze and Brass Founders British Foun

4、dry Association British Gas plc British Plumbing Fittings Manufacturers Association British Valve and Actuator Manufacturers Association British Water Chartered Institution of Building Services Engineers Electricity Association Energy Industries Council Engineering Equipment and Materials Users Asso

5、ciation GAMBICA (BEAMA) Ltd. Health and Safety Executive Institution of Mechanical Engineers LP Gas Association Pipeline Industries Guild Society of British Water Industries Water Services Association of England and Wales West Midlands CBI Coopted members Amendments issued since publication Amd. No.

6、DateComments BS EN 558-2:1996 BSI 06-1999i Contents Page Committees responsible Inside front cover National foreword ii Foreword 2 Text of EN 558-23 List of references Inside back cover BS EN 558-2:1996 ii BSI 06-1999 National foreword This British Standard has been prepared by Technical Committee P

7、SE/7 and is the English language version of EN 558-2:1995 Industrial valves Face-to-face and centre-to-face dimensions of metal valves for use in flanged pipe systems Part 2: Class-designated valves, published by the European Committee for Standardization (CEN). EN558-2 was produced as the result of

8、 international discussions in which the United Kingdom took an active part. Together with BS EN 558-1:1989, it partially supersedes BS 2080:1989, which has been amended. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsi

9、ble for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Cross-reference Publication referred toCorresponding British Standard EN 26554:1991BS EN26554:1991 Specification for face-to-face dimensions for flanged automatic steam tr

10、aps Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, the EN title page, pages 2 to 24, 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 amen

11、dment table on the inside front cover. EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 558-2 March 1995 ICS 23.060.00 Descriptors: Industrial valves, valves-and fittings, flanged valves, metallurgical products, dimensions, dimensional tolerances English version Industrial valves Face-to-face an

12、d centre-to-face dimensions of metal valves for use in flanged pipe systems Part 2: Class-designated valves Robinetterie industrielle Dimensions face-face et face-axe de la robinetterie mtallique utilise dans les systmes de canalisations brides Partie 2: Appareils de robinetterie dsigns Class Indust

13、riearmaturen Baulngen von Armaturen aus Metall zum Einbau in Rohrleitungen mit Flanschen Teil 2: Nach Class bezeichnete Armaturen This European Standard was approved by CEN on 1995-10-16. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giv

14、ing this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CEN member. This European Standard exists in three official vers

15、ions (English, French, German). A version in any other langage made by translation under the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, D

16、enmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat: rue de Stassart 3

17、6, B-1050 Brussels 1995 All rights of reproduction and communiction in any form and by any means reserved in all countries to CEN and its members. Ref. No. EN 558-2:1995 E EN 558-2:1995 BSI 06-1999 2 Foreword This European Standard has been prepared by Technical Committee CEN/TC 69, Industrial valve

18、s, the secretariat of which is held by AFNOR. This European Standard shall be given the status of a national standard, either by the publication of an identical text or by endorsement, at the latest by April 1996, and conflicting national standards shall be withdrawn at the latest by April 1996. Thi

19、s European Standard has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EC Directive(s). This standard was drawn up on the basis of the draft International Standard ISO/DIS 5752 and contains two Par

20、ts which can be used separately: EN 558-1, Industrial valves Face-to-face and centre-to-face dimensions of metal valves for use in flanged pipe systems Part 1: PN-designated valves. EN 558-2, Industrial valves Face-to-face and centre-to-face dimensions of metal valves for use in flanged pipe systems

21、 Part 2: Class-designated valves. The progress in work in the standardization of the different products can require a revision of the standard by adding or subtracting some basic series. In accordance with the CEN/CENELEC Internal Regulations, the following countries are bound to implement this Euro

22、pean Standard: Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. Contents Page Foreword 2 Introduction3 1Scope3 2Normative references3 3Definitions3 4Dimensions and tolerance

23、s 3 Annex A (informative) Origin of basic series22 Annex B (informative) Relationship between DN and NPS 23 Figure 14 Figure 2 Flat face flange4 Figure 3 Raised face flange4 Figure 45 Figure 56 Table 1 Dimensions of basic series8 Table 2 Tolerances10 Table 3 Gate valves10 Table 4 Butterfly valves Fl

24、anged type11 Table 5 Butterfly valves Wafer type12 Table 6 Plug valves and ball valves13 Table 7 Diaphragm valves14 Table 8 Globe valves Straight and oblique pattern14 Table 9 Globe valves and lift check valves Angle pattern15 Table 10 Check valves Flanged type16 Table 11 Check valves Wafer type17 T

25、able 12 Globe control valves Straight pattern18 Table 13 Globe control valves Angle pattern18 Table 14 Butterfly control valves Flanged type19 Table 15 Butterfly control valves Wafer type20 Table 16 Eccentric rotary plug control valves and segmented ball control valves Wafer type and flanged type21

26、Table 17 Ball control valves21 Table A.1 Origin of basic series 22 Table B.1 Relationship between DN and NPS 23 EN 558-2:1995 BSI 06-19993 Introduction All tables of face-to-face and centre-to-face dimensions are drafted separately for PN-designated valves in EN 558-1 and for Class designated valves

27、 in EN 558-2. The basic series in this standard are taken from the origin series shown in Annex A (informative). Changes made to the origin series will not be automatically incorporated into this standard. The numbers of the basic series are maintained as in ISO/DIS 5752:1993. 1 Scope This Part of t

28、his standard specifies face-to-face (FTF) and centre-to-face (CTF) dimensions for Class designated metal valves used in flanged pipe systems. This Part of this standard covers valves having the following Class and DN values: Class 125, Class 150, Class 250, Class 300, Class 600. DN 10; DN 15; DN 20;

29、 DN 25; DN 32; DN 40; DN 50; DN 65; DN 80; DN 100; DN 125; DN 150; DN 200; DN 250; DN 300; DN 350; DN 400; DN 450; DN 500; DN 600; DN 700; DN 750; DN 800; DN 900; DN 1 000; DN 1 200; DN 1 400; DN 1 600; DN 1 800; DN 2 000. Face-to-face dimensions of automatic steam traps are specified in EN 26554. 2

30、 Normative references This European Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisio

31、ns of the cited publication apply to this European Standard only when incorporated in it by amendment or revision. For undated references, the latest edition of the publication referred to applies. EN 736-1, Valves Terminology Part 1: Definitions of types of valves. EN 26554, Flanged automatic steam

32、 traps Face-to-face dimensions. 3 Definitions For the purposes of this standard, prEN 736-1 and the following definitions apply: 3.1 face-to-face dimension (FTF) (for straight pattern valves) the distance, expressed in millimetres, between the two planes perpendicular to the valve axis located at th

33、e extremities of the body and ports or as may be specified in the relevant valve product standard (see Figure 1 and Figure 2) 3.2 centre-to-face dimension (CTF) (for angle pattern valves) the distance, expressed in millimetres, between the plane located at the extremity of either body end port and p

34、erpendicular to its axis and the axis of the other body end port (see Figure 1 and Figure 2) 4 Dimensions and tolerances 4.1 Basic series The basic series of FTF and CTF dimensions shall be as given in Table 1. For each type of valve, the basic series to be taken into consideration are given in Tabl

35、e 3 to Table 17. 4.2 Dimensions for unlined valves 4.2.1 Flat face flanges For valves having flanges with flat face: in grey cast iron Class 125; in copper alloy Class 150 and Class 360. The FTF and CTF dimensions shall be in accordance with Figure 1 and Figure 2. 4.2.2 Raised face flanges For valve

36、s: having flanges with 1,6 mm raised face: in grey cast iron, Class 250; in ductile cast iron, Class 150 and Class 300; in steel, Class 150 and Class 300; having flanges with 6,4 mm raised face: in steel, Class 600. The FTF and CTF dimensions shall be in accordance with Figure 1 and Figure 3. 4.2.3

37、Ring joint flanges For valves with flange facings designed to be used with metallic ring joints having octagonal or oval section, the FTF or CTF dimensions shall be in accordance with Figure 4. EN 558-2:1995 4 BSI 06-1999 4.2.4 Other flange facings For Class 150, Class 300 and Class 600 valves with

38、large and small male and female faces and large and small tongue and groove facings, the FTF and CTF dimensions shall be in accordance with Figure 1 and Figure 5. Figure 1 *) Table 1 dimensions Figure 2 Flat face flange *) Table 1 dimensions Figure 3 Raised face flange EN 558-2:1995 BSI 06-19995 Dim

39、ensions in millimetres Nominal sizeAdditional length X for ring joint flanges DNClass 150Class 300Class 600 1511,111,1 1,6 20 25 32 40 12,70 50 65 80 100 125 150 200 250 300 350 400 450 12,7 15,93,2 50019,16,4 60022,29,5 700 75025,412,7 800 900 1 000 28,615,9 Figure 4 EN 558-2:1995 6 BSI 06-1999 Cla

40、ss 150 and Class 300Class 600 Large or small male face Large or small female face Large or small tongue Large or small groove Dimensions in millimetres *) Table 1 dimension Figure 5 EN 558-2:1995 BSI 06-19997 4.3 Dimensions for lined valves 4.3.1 For valves having a resilient lining which forms the

41、gasket joint with the mating flanges, the FTF and CTF dimensions shall be the distance between the extremities of the valve in the installed condition. The overall valve dimensions before assembly shall be provided by the manufacturer. 4.3.2 For valves having resilient or hard linings as a regular p

42、roduction feature the thickness of the lining on the mating surface shall be included in the FTF and CTF dimensions given in Table 1 unless the design of the valve precludes such an inclusion. Where the design does not permit the lining to be included in the FTF and CTF dimensions given in Table 1,

43、then the thickness of the lining may be added to the basic dimension. 4.3.3 For valves having resilient or hard linings which are not normally a regular production feature, the thickness of the lining on the flange faces may be added to the FTF and CTF dimensions given in Table 1. 4.4 Tolerances Tol

44、erances on FTF and CTF dimensions are given inTable 2. EN 558-2:1995 8 BSI 06-1999 - - - EN 558-2:1995 BSI 6-19999 - - - EN 558-2:1995 10 BSI 06-1999 Table 2 Tolerances Table 3 Gate valves Dimensions in millimetres FTF or CTF dimensionTolerances aboveup to and including 0 250 500 800 1 000 1 600 250

45、 500 800 1 000 1 600 2 250 o 2 o 3 o 4 o 5 o 6 o 8 Dimensions in millimetres DNFTF dimension Class 125/Class 150Class 250/Class 300Class 600 10 15 20 80 80 90 102 108 117 108 108 117 80 80 90 108 108 117 140 152 140 152 165 190 25 32 40 100 110 120 127 140 165 127 146 159 100 110 120 127 146 159 165

46、 178 190 165 178 190 152 216 229 241 50 65 80 135 165 185 178 190 203 190 216 254 135 165 185 190 216 254 216 241 283 216 241 283 178 216 254 292 330 356 100 125 150 229 229 254 267 305 229 305 305 381 403 305 381 403 305 381 457 432 508 559 200 250 300 292 330 356 419 457 502 419 457 502 584 711 81

47、3 660 787 838 350 400 450 381 406 432 572 610 660 762 838 914 889 991 1 092 889 991 1 092 500 600 457 508 711 787 991 1 143 1 194 1 397 1 194 1 397 7006101 3461 5491 549 7506101 3971 651 800 900 1 000 660 711 813 1 727 1 981 Basic series18c37c18c7c194b33a5 a These dimensions apply to pressure seal o

48、r flangeless bonnet valves. They may be applied at the manufacturers option to valves with flanged bonnets. b This series applies to Class 300 steel valves only. c These series apply to copper alloy valves only; not to be used for cast iron or steel valves. EN 558-2:1995 BSI 06-199911 Table 4 Butterfly valv