1、July 2016 English price group 8No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 23.060.01!%X#a“2530062www.din.deDIN
2、EN 19Industrial valves Marking of metallic valves;English version EN 19:2016,English translation of DIN EN 19:2016-07Industriearmaturen Kennzeichnung von Armaturen aus Metall;Englische Fassung EN 19:2016,Englische bersetzung von DIN EN 19:2016-07Robinetterie industrielle Marquage des appareils de ro
3、binetterie mtalliques;Version anglaise EN 19:2016,Traduction anglaise de DIN EN 19:2016-07SupersedesDIN EN 19:2002-07www.beuth.deDTranslation by DIN-Sprachendienst.In case of doubt, the German-language original shall be considered authoritative.Document comprises 12 pages 06.16 2 A comma is used as
4、the decimal marker. National foreword This document (EN 19:2016) has been prepared by Technical Committee CEN/TC 69 “Industrial valves” (Secretariat: AFNOR, France). The responsible German body involved in its preparation was DIN-Normenausschuss Armaturen (DIN Standards Committee Valves), Working Co
5、mmittee NA 003-01-01 AA Grundnormen. Amendments This standard differs from DIN EN 19:2002-07 as follows: a) normative references have been updated; b) references to EN 12516-1 and EN 12516-4 have been added to 5.3 “Material” as the standards for the material designations to be used for the marking;
6、c) Annex ZA has been updated. Previous editions DIN 3400: 1928-07, 1973-09 DIN EN 19: 1977-09, 2002-07 DIN EN 19:2016-07 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 19 March 2016 ICS 23.060.01 Supersedes EN 19:2002English Version Industrial valves - Marking of metallic valves Robinetterie i
7、ndustrielle - Marquage des appareils de robinetterie mtalliques Industriearmaturen - Kennzeichnung von Armaturen aus Metall This European Standard was approved by CEN on 15 January 2016. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for givi
8、ng 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 CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three offi
9、cial 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 CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of
10、 Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
11、Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2016 CEN All rights of exploitation in any form and by any means reserved worldwide fo
12、r CEN national Members. Ref. No. EN 19:2016 EEN 19:2016 (E) 2 Contents Page European foreword . 3 1 Scope 4 2 Normative references 4 3 Terms and definitions . 4 4 Requirements . 5 4.1 General 5 4.2 Mandatory markings 5 4.3 Supplementary markings . 5 4.4 Other markings 5 4.5 Omission of markings 7 5
13、Details of markings . 7 5.1 Nominal size 7 5.2 PN/Class designation . 8 5.3 Material . 8 5.4 Manufacturers name or trademark . 8 5.5 Arrow for direction of flow 8 5.6 Ring joint number . 8 5.7 Maximum allowable temperature, TS . 8 5.8 Threaded end identification . 8 5.9 Maximum allowable pressure, P
14、S . 8 5.10 Product identification . 8 5.11 Reference to the standard 8 5.12 Melt identification. 8 5.13 Trim 9 5.14 Service symbols . 9 5.15 Internal coating, liner, lining or internal painting 9 5.16 Quality and test markings 9 5.17 Inspectors identification . 9 5.18 Year of manufacture . 9 5.19 Fl
15、ow coefficient 9 5.20 Allowable differential pressure p . 9 5.21 Closing direction 9 Annex ZA (informative) Relationship between this European Standard and the essential requirements of Directive 2014/68/EU (Pressure Equipment Directive) aimed to be covered. 10 DIN EN 19:2016-07 EN 19:2016 (E) 3 Eur
16、opean foreword This document (EN 19:2016) has been prepared by Technical Committee CEN/TC 69 “Industrial valves”, the secretariat of which is held by AFNOR. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the l
17、atest by September 2016, and conflicting national standards shall be withdrawn at the latest by September 2016. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any o
18、r all such patent rights. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive 2014/68/EU. For relationship with EU Directive, see informative Annex ZA, which is an integra
19、l part of this document. This document supersedes EN 19:2002. The main changes compared to the previous edition are the following: a) Normative references have been updated; b) references to EN 12516-1 and EN 12516-4 were added to 5.3 “Material” as the standards for the material designations to be u
20、sed for the marking; c) Annex ZA has been updated. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland,
21、 Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. DIN EN 19:2016-07 EN 19:2016 (E) 4 1
22、 Scope This European Standard specifies the requirements for marking of industrial metallic valves. It defines the method of applying the 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 st
23、andard, this European Standard has to be considered in conjunction with the specified requirements of that valve product or performance standard. The marking requirements for plastic valves are not within the scope of this European Standard. 2 Normative references The following documents, in whole o
24、r in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 736-1, Valves - Terminology - Part 1: D
25、efinition 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 12516-1, Industrial valves - Shell design strength - Part 1: Tabulation method for steel valve shells EN 12516-4, Industrial valves
26、 - Shell design strength - Part 4: Calculation method for valve shells manufactured in metallic materials other than steel 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
27、are made on the threads Part 1: Dimensions, tolerances and designation ANSI/ASME B1.20.1, Pipe Threads, General Purpose, Inch 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 736-1, EN 736-2 and EN 736-3 and the following apply. 3.1 integral markings i
28、ntegrally 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 Note 1 to entry: See also 4.1.4. 3.3 identification plate plate securely fixed to the valve with supplementary o
29、r other markings Note 1 to entry: See also 4.1.4. DIN EN 19:2016-07 EN 19:2016 (E) 5 4 Requirements 4.1 General 4.1.1 Where the requirements in a valve product or performance standard differ from those given in this European Standard then the requirements of the product or performance standard apply
30、. 4.1.2 Mandatory markings (see 4.2) are independent of language. When it 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 CE
31、N languages (English, French or German). 4.1.3 Table 1 lists those items which shall be considered for inclusion in product or performance standards. Details of the markings are given in Clause 5. 4.1.4 Markings shall be located as detailed in 4.2, 4.3 and 4.4. Painted-on markings are not permitted.
32、 Where marking plates or identification plates are used, unless otherwise specified in product or performance 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 whi
33、ch is resistant to atmospheric corrosion. Marking plates shall also be suitable for the allowable temperature of the valve. 4.2 Mandatory markings 4.2.1 Items 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
34、designation, items 7 and 9 in Table 1 are mandatory. See also 4.5.4. 4.2.2 Items 5 and 6 in Table 1 shall 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 standar
35、d. The location of supplementary markings shall be determined by the manufacturer unless otherwise specified in the relevant product or performance standard. 4.4 Other markings A manufacturer having complied with the above requirements of this European Standard and those of product or performance st
36、andards relevant to the individual types of valve is permitted to: a) mark any of the items in Table 1 additionally 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,
37、any technical and/or commercial references, providing that there is no risk of confusion between these markings 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 requir
38、ed. DIN EN 19:2016-07 EN 19:2016 (E) 6 Table 1 Valve markings Item Subject Marking Clause reference PN designated valves Class designated valves 1 Nominal size Flanged ends, DN . DN . and/or (NPS) . 5.1.2 Wafer type bodies Welding ends DN . DN . and/or (NPS) 5.1.2 Threaded ends . (thread size) and/o
39、r DN . . (thread size) and/or (NPS) 5.1.3 Capillary ends . (tube O/D) . (tube O/D) 5.1.4 Compression ends . (tube O/D) . (tube O/D) 5.1.4 Other ends - - 5.1.5 2 PN/Class designation PN . CLASS . 5.2 3 Material - - 5.3 4 Manufacturers name or trademark ABC ABC 5.4 5 Arrow for direction of flow 5.5 6
40、Ring joint number - R . 5.6 7 Maximum allowable temperature TS . C or . C . C or . C 5.7 8 Threaded end identification R, Rc, Rp, G, NPT R, Rc, Rp, G, NPT 5.8 or other marking according to the relevant standard or other marking according to the relevant standard 9 Maximum allowable pressure PS . bar
41、 . bar 5.9 10 Product identification - - 5.10 11 Reference to the standard EN . EN . 5.11 12 Melt identification - - 5.12 13 Trim - - 5.13 14 Service symbols - - 5.14 15 Internal coating, liner, lining or internal painting - - 5.15 16 Quality and test markings - - 5.16 17 Inspectors identification 5
42、.17 18 Year of manufacture 2014 or 14 2014 or 14 5.18 19 Flow coefficient Kv(or Cv) . Kv(or Cv) . 5.19 20 Allowable differential pressure p. bar p. bar 5.20 21 Closing direction - - 5.21 DIN EN 19:2016-07 EN 19:2016 (E) 7 4.5 Omission of markings 4.5.1 For valves lower than or equal to DN 50 or for
43、valves with threaded ends lower than or equal to 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 product or performance standard shall specify which markings may be omitted or alternatively placed
44、on the identification plate or other location. 4.5.2 For Class designated valves 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”. 4.5.3 For PN designated valves, it is
45、 permissible to omit the letters “DN” from the nominal size designation (item 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. 4.5.4 Valves with compression or capillary ends have no defined PN o
46、r Class designation but such valves are not required to be marked with items 7 and 9 in Table 1. 4.5.5 For cast iron valves it is permissible to omit “EN” from the material designation. 5 Details of markings 5.1 Nominal size 5.1.1 The nominal size marking shall be the size designation of the end con
47、nections with which the body has been provided. 5.1.2 For valves with flanges, butt 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
48、welding standard, e.g. DN 100. NOTE 1 For Class designated valves, the NPS marking, 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. 5.1.3 For threaded
49、 end valves, the nominal size marking shall be the thread size as specified in the relevant 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. 5.1.4 For 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
