BS-EN-19-2002.pdf

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1、BRITISH STANDARD BS EN 19:2002 Industrial valves Marking of metallic valves The European Standard EN 19:2002 has the status of a British Standard ICS 23.060.01 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Licensed Copy: sheffieldun sheffieldun, na, Sun Oct 29 09:53:24 GMT+0

2、0:00 2006, Uncontrolled Copy, (c) BSI BS EN 19:2002 This British Standard, having been prepared under the direction of the Engineering Sector Policy and Strategy Committee, was published under the authority of the Standards Policy and Strategy Committee on 13 May 2002 BSI 13 May 2002 ISBN 0 580 3969

3、7 5 National foreword This British Standard is the official English language version of EN 19:2002. It supersedes BS EN 19:1992 which is withdrawn. The UK participation in its preparation was entrusted by Technical Committee PSE/7, Industrial valves, to Subcommittee PSE/7/1, Industrial valves Basic

4、standards, which has the responsibility to: A list of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Standar

5、ds Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for

6、 their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests inform

7、ed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 10, an inside back cover and a back cover. The BSI copyright date displayed in this document indicat

8、es when the document was last issued. Amendments issued since publication Amd. No. DateComments Licensed Copy: sheffieldun sheffieldun, na, Sun Oct 29 09:53:24 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 19 April 2002 ICS 23.060.01Supersedes EN 19:

9、1992 English version Industrial valves - Marking of metallic valves Robinetterie industrielle - Marquage des appareils de robinetterie mtalliques Industriearmaturen - Kennzeichnung von Armaturen aus Metall This European Standard was approved by CEN on 27 December 2001. CEN members are bound to compl

10、y with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving 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 Management C

11、entre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the official

12、 versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION CO

13、MIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2002 CENAll rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 19:2002 E Licensed Copy: sheffieldun sheffieldun, na, Sun Oct 29

14、 09:53:24 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 19:2002 (E) 2 Contents page Foreword3 1Scope 4 2Normative references 4 3Terms and definitions4 4Requirements.5 5Details of markings7 Annex ZA (informative) Clauses of this European Standard addressing essential requirements or other provisions

15、of EU Directives10 Licensed Copy: sheffieldun sheffieldun, na, Sun Oct 29 09:53:24 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 19:2002 (E) 3 Foreword This document EN 19:2002 has been prepared by Technical Committee CEN/TC 69 “Industrial valves“, the secretariat of which is held by AFNOR. This Eur

16、opean Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by October 2002, and conflicting national standards shall be withdrawn at the latest by October 2002. This document supersedes EN 19:1992. This document has be

17、en prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive(s). For relationship with EU Directive(s), see informative annex ZA, which is an integral part of this document. According to the CEN/CENEL

18、EC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Swede

19、n, Switzerland and the United Kingdom. Licensed Copy: sheffieldun sheffieldun, na, Sun Oct 29 09:53:24 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 19:2002 (E) 4 1 Scope This European Standard specifies the requirements for marking of industrial metallic valves. It defines the method of applying th

20、e markings, on the body, on a flange, on an identification plate or any other location. When specified as a normative reference in a valve product or performance standard, this standard has to be considered in conjunction with the specified requirements of that valve product or performance standard.

21、 The marking requirements for plastic valves are not within the scope of this standard. 2 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 p

22、ublications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications 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 (includi

23、ng amendments). EN 736-1, Valves Terminology - Part 1: Definition of types of valves. EN 736-2, Valves - Terminology - Part 2: Definition of components of valves. EN 736-3, Valves - Terminology - Part 3: Definition of terms. EN 1503-1, Valves Materials for bodies, bonnets and covers - Part 1: Steels

24、 specified in European Standards. EN 1503-2, Valves - Materials for bodies, bonnets and covers - Part 2: Steels other than those specified in European Standards. EN 1503-3, Valves - Materials for bodies, bonnets and covers - Part 3: Cast irons specified in European Standards. prEN 1503-4, Valves - M

25、aterials for bodies, bonnets and covers - Part 4: Copper alloys specified in European Standards. ISO 228-1, Pipe threads where pressure-tight joints are not made on the threads - Part 1: Dimensions, tolerances and designation. ISO 7-1, Pipe threads where pressure-tight joints are made on the threads

26、 - Part 1: Dimensions, tolerances and designation. ANSI/ASME B1.20.11), Pipe threads, general purpose (inch). 3 Terms and definitions For the purposes of this European Standard, the terms and definitions given in EN 736-1, EN 736-2 and EN 736-3 and the following terms and definitions apply. 3.1 inte

27、gral markings integrally cast, forged or stamped markings on the body or bonnet/ cover of the valve 3.2 marking plate plate securely fixed to the body or bonnet/cover with one or more mandatory markings 1) is publicly available at ANSI-American National Standards Institute (ASME-American Society of

28、Mechanical Engineers) 11 West 42nd Street NEW YORK, NY 10036. Licensed Copy: sheffieldun sheffieldun, na, Sun Oct 29 09:53:24 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 19:2002 (E) 5 NOTE See also 4.1.4. 3.3 identification plate plate securely fixed to the valve with supplementary or other markin

29、gs NOTE See also 4.1.4. 4 Requirements 4.1 General 4.1.1Where the requirements in a valve product or performance standard differ from those given in this standard then the requirements of the product or performance standard apply. 4.1.2Mandatory markings (see 4.2) are independent of language. When i

30、t is necessary to include descriptive words so as to properly define any supplementary markings (see 4.3) or other markings (see 4.4) then any such words shall be in the language of the manufacturer and/or one of the official CEN languages. 4.1.3Table 1 lists those items which shall be considered fo

31、r inclusion in product or performance standards. Details of the markings are given in clause 5. 4.1.4Markings shall be located as detailed in 4.2, 4.3 and 4.4. Painted-on markings are not permitted. Where marking plates or identification plates are used, unless otherwise specified in product or perf

32、ormance standards, the material and method of fixing shall be at the discretion of the manufacturer. All marking plates and identification plates and their means of fixing shall be in a material which is resistant to atmospheric corrosion. Marking plates shall also be suitable for the allowable temp

33、erature of the valve. 4.2 Mandatory markings 4.2.1Items 1 to 4 in Table 1 shall be marked on every valve and shall be integral markings or on a marking plate. If a valve has no defined PN or Class designation, items 7 and 9 in Table 1 are mandatory. See also 4.5.4. 4.2.2Items 5 and 6 in Table 1 shal

34、l be marked on those valves requiring these markings. See 5.5 and 5.6. 4.3 Supplementary markings Items 7 to 21 in Table 1 are optional unless otherwise specified in product or performance standard. The location of supplementary markings shall be determined by the manufacturer unless otherwise speci

35、fied in the relevant product or performance standard. 4.4 Other markings A manufacturer having complied with the above requirements of this standard, and those of product or performance standards relevant to the individual types of valve is permitted to: a) mark any of the items in Table 1 additiona

36、lly in a place other than that specified; e.g. if a marking is mandatory on the body or bonnet/cover it may also be repeated on the identification plate; b) add to the markings specified, any technical and/or commercial references, providing that there is no risk of confusion between these markings

37、and the markings in Table 1. For industrial valves conforming to the requirements of the EU Directive(s) stated in annex ZA, additional markings in accordance with 5.10 and 5.18 are required. Licensed Copy: sheffieldun sheffieldun, na, Sun Oct 29 09:53:24 GMT+00:00 2006, Uncontrolled Copy, (c) BSI E

38、N 19:2002 (E) 6 Table 1 Valve markings Marking ItemSubjectPN designated valves Class designated valves Clause reference Flanged ends, Wafer type bodies DN .DN . and/or (NPS) .5.1.2 Welding endsDN .DN . and/or (NPS)5.1.2 5.1.3 Threaded ends . (thread size) and/or DN . . (thread size) and/or (NPS) Cap

39、illary ends. (tube O/D). (tube O/D)5.1.4 Compression ends. (tube O/D). (tube O/D)5.1.4 1 Nominal size Other ends-5.1.5 2PN/Class designationPN .CLASS .5.2 3Material-5.3 4Manufacturers name or trademark ABCABC5.4 5Arrow for direction of flow?5.5 6Ring joint number-R .5.6 7 Maximum allowable temperatu

40、re TS . C or . C. C or . C5.7 R, Rc, Rp, G, NPTR, Rc, Rp, G, NPT 8 Threaded end identification or other marking according to the relevant standard or other marking according to the relevant standard 5.8 9Maximum allowable pressure PS. bar. bar5.9 10Product identification-5.10 11Reference to the stan

41、dardEN .EN .5.11 12Melt identification-5.12 13Trim-5.13 14Service symbols-5.14 15 Internal coating, liner, lining or painting -5.15 16Quality and test markings-5.16 17Inspectors identification?5.17 18Year of manufacture1997 or 971997 or 975.18 19Flow coefficientKv (or Cv) .Kv (or Cv) .5.19 20Allowab

42、le differential pressure?p. bar?p. bar5.20 21Closing direction-5.21 4.5 Omission of markings 4.5.1For valves equal to or smaller than DN 50 or thread size 2, where due to the physical size of the valve, it is not practicable to apply all the mandatory markings as required by 4.2, the relevant valve

43、product or performance standard shall specify which markings may be omitted or alternatively placed on the identification plate or other location. Licensed Copy: sheffieldun sheffieldun, na, Sun Oct 29 09:53:24 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 19:2002 (E) 7 4.5.2For Class designated val

44、ves where, due to the physical size of the valve, it is not practicable to incorporate the word “CLASS“, it is permissible to omit the word “CLASS“ or to indicate only the letters “CL“. 4.5.3For PN designated valves, it is permissible to omit the letters “DN“ from the nominal size designation (item

45、1) providing the PN designation (item 2) follows immediately after the size number and on the same line, e.g. DN 50 PN 25 may be abbreviated to 50 PN 25. 4.5.4Valves with compression or capillary ends have no defined PN or Class designation but such valves are not required to be marked with items 7

46、and 9 in Table 1. 4.5.5For cast iron valves it is permissible to omit “EN“ from the material designation. 5 Details of markings 5.1 Nominal size 5.1.1The nominal size marking shall be the size designation of the end connections with which the body has been provided. 5.1.2For valves with flanges, but

47、t welding or socket welding end connections or with wafer type bodies, the nominal size marking shall comprise the letters “DN“ and the appropriate DN number as specified in the relevant flange, butt welding or socket welding standard, e.g. DN 100. NOTE 1For Class designated valves, the NPS marking,

48、 e.g. NPS 4 can be used in addition to or as an alternative to the DN marking. The relationship between NPS and DN is specified in the relevant flange or welding end standard. NOTE 2 See also 4.5.3. 5.1.3For threaded end valves, the nominal size marking shall be the thread size as specified in the r

49、elevant pipe thread standard. NOTE In addition to, or as an alternative to the thread size marking, the DN marking can be used. The relationship between NPS and DN is specified in the relevant product or performance standard. 5.1.4For capillary and compression ends, the nominal size marking shall be the outside diameter of the tube for which the valve is suitable and shall be as specified in the relevant tube standard. 5.1.5For valves provided with other end connections or having the pipe end connections of differing nominal sizes or type, e.g. one fla