DIN EN 12266-1-2012 Industrial valves - Testing of metallic valves - Part 1 Pressure tests test procedures and acceptance criteria - Mandatory requirements German version EN 12266-.pdf

1、June 2012 Translation by DIN-Sprachendienst.English price group 11No 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 2

2、3.060.01!$|ez“1896687www.din.deDDIN EN 12266-1Industrial valves Testing of metallic valves Part 1: Pressure tests, test procedures and acceptancecriteria - Mandatory requirementsEnglish translation of DIN EN 12266-1:2012-06Industriearmaturen Prfung von Armaturen aus Metall Teil 1: Druckprfungen, Prf

3、verfahren und Annahmekriterien VerbindlicheAnforderungenEnglische bersetzung von DIN EN 12266-1:2012-06Robinetterie industrielle Essais des appareils de robinetterie mtalliques Partie 1: Essais sous pression, procdures dessai et critres dacceptation Prescriptions obligatoiresTraduction anglaise de D

4、IN EN 12266-1:2012-06SupersedesDIN EN 12266-1:2003-06www.beuth.deIn case of doubt, the German-language original shall be considered authoritative.Document comprises 19 pages05.12 DIN EN 12266-1:2012-06 2 A comma is used as the decimal marker. National foreword This standard has been prepared by Tech

5、nical Committee CEN/TC 69 “Industrial valves” (Secretariat: AFNOR, France). The responsible German body involved in its preparation was the Normenausschuss Armaturen (Valves Standards Committee), Working Committee NA 003-01-01 AA Grundnormen. Attention is drawn to the possibility that some of the el

6、ements of this document may be the subject of patent rights. DIN and/or DKE shall not be held responsible for identifying any or all such patent rights. Amendments This standard differs from DIN EN 12266-1:2003-06 as follows: a) the scope has been specified and editorially revised; b) normative refe

7、rences have been updated; c) Clause 3 “Terms and definitions” has been revised; d) Clause 4 “Test requirements” has been changed; e) Subclause A.1.6 “Allowable pressure at room temperature” has been deleted; f) Table A.2 “Minimum test duration for shell tests” has been updated; g) Annex ZA has been

8、revised; h) the Bibliography has been updated. Previous editions DIN 3230: 1953-02 DIN 3230-1: 1974-04 DIN 3230-2: 1974-04 DIN 3230-3: 1975-03, 1982-04 DIN EN 12266-1: 2003-06 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 12266-1 April 2012 ICS 23.060.01 Supersedes EN 12266-1:2003English Vers

9、ion Industrial valves - Testing of metallic valves - Part 1: Pressure tests, test procedures and acceptance criteria - Mandatory requirements Robinetterie industrielle - Essais des appareils de robinetterie mtalliques - Partie 1: Essais sous pression, procdures dessai et critres dacceptation - Presc

10、riptions obligatoires Industriearmaturen - Prfung von Armaturen aus Metall - Teil 1: Druckprfungen, Prfverfahren und Annahmekriterien - Verbindliche Anforderungen This European Standard was approved by CEN on 25 February 2012. CEN members are bound to comply with the CEN/CENELEC Internal Regulations

11、 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 CEN-CENELEC Management Centre or to any CEN member. Thi

12、s 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 CEN-CENELEC Management Centre has the same status as the official versions. CEN memb

13、ers are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,

14、 Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2012 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN natio

15、nal Members. Ref. No. EN 12266-1:2012: EEN 12266-1:2012 (E) 2 Contents Page Foreword 3Introduction . 41 Scope 52 Normative references 53 Terms and definitions . 54 Test requirements 65 Designation 7Annex A (normative) Test procedures and acceptance criteria . 8A.1 General requirements 8A.2 Shell str

16、ength, test reference, P10 10A.3 Shell tightness, test reference, P11 . 12A.4 Seat tightness, test reference P12 13Annex ZA (informative) Relationship between this European Standard and the Essential Requirements of EU Directive 97/23/EC (PED) 16Bibliography 17DIN EN 12266-1:2012-06 EN 12266-1:2012

17、(E) 3 Foreword This document (EN 12266-1:2012) 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

18、the latest by October 2012, and conflicting national standards shall be withdrawn at the latest by October 2012. This document supersedes EN 12266-1:2003. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports ess

19、ential requirements of EU Directive 97/23/EC (PED). For relationship with EU Directive 97/23/EC (PED), see informative Annex ZA, which is an integral part of this document. The main changes compared to the previous edition are: a) the scope was specified and editorially revised; b) the normative ref

20、erences were updated; c) Clause 3 Terms and definitions was revised; d) Clause 4 Test requirements was changed; e) A.1.6 Allowable pressure at room temperature was deleted; f) Table A.2, “Minimum test duration for shell tests“ has been updated; g) Annex ZA was revised; h) Bibliography was updated. E

21、N 12266, Industrial valves Testing of metallic valves consists of the following parts: Part 1: Pressure tests, test procedures and acceptance criteria Mandatory requirements Part 2: Tests, test procedures and acceptance criteria Supplementary requirements EN 12266-1 was drawn up on the basis of Inte

22、rnational Standard ISO 5208:1993. EN 12266-2 contains supplementary testing requirements for tests, test procedures and acceptance criteria of valves. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this Europe

23、an Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey

24、 and the United Kingdom. DIN EN 12266-1:2012-06 EN 12266-1:2012 (E) 4 Introduction The purpose of this European Standard is to establish certain basic requirements for production pressure testing of industrial valves in order to ensure uniform tests and test procedures. Tests and procedures given in

25、 this European Standard may also be used, if required, for type tests and acceptance tests. Special requirements, which are specific to one product or one performance standard only, are not included in this European Standard. Details should be included in the appropriate standard. DIN EN 12266-1:201

26、2-06 EN 12266-1:2012 (E) 5 1 Scope This European Standard specifies requirements for tests, test procedures and acceptance criteria for production testing of industrial valves made of metallic materials. The specified tests may also be used as type tests or acceptance tests. Safety devices are not c

27、overed by EN 12266-1. When specified as a normative reference in a valve product or performance standard, this European Standard is to be considered in conjunction with given specific requirements of the valve product or performance standard. Where requirements in a product or performance standard d

28、iffer from those given in this European Standard, the requirements of the product or performance standard apply. NOTE For testing of industrial valves of thermoplastic materials, ISO 9393-1 and ISO 9393-2 apply. 2 Normative references The following documents, in whole or in part, are normatively ref

29、erenced 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 736-1:1995, Valves Terminology Part 1: Definition of types of valves

30、EN 736-2:1997, Valves Terminology Part 2: Definition of components of valves EN 736-3:2008, Valves Terminology Part 3: Definition of terms EN 1349, Industrial process control valves 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 736-1:1995, EN 736-2:

31、1997, EN 736-3:2008 and the following apply. 3.1 shell test test at a pressure in excess of the cold working pressure (3.7) rating of a valve for the purpose of validating the soundness and strength of the valve pressure containing and retaining structures Note 1 to entry: These structures include v

32、alve-actuating mechanisms that have a direct connection to the valve internals subject to fluid test pressure within the valve proper. 3.2 test pressure internal pressure (gauge), expressed in bar 1)to which the valve under testing is subjected Note 1 to entry: Unless otherwise noted, gauge pressure

33、 is used throughout this European Standard. 3.3 test fluid pressurized liquid or gas used to test a valve 11 bar = 105Pa. DIN EN 12266-1:2012-06 EN 12266-1:2012 (E) 6 3.4 test fluid temperature temperature of the test fluid, 5 C and 40 C 3.5 DN, NPS alphanumeric designation of size that is common fo

34、r components used in a piping system, used for reference purposes, comprising the letters “DN or NPS” followed or preceded by a dimensionless number indirectly related to the physical size of the bore or outside diameter of the end connections Note 1 to entry: The number following “DN or NPS” does n

35、ot represent a measurable value and should not be used for calculation purposes except where specified in a product standard. 3.6 PN or Class alphanumeric designation for pressure-temperature rating that is common for components used in a piping system, used for reference purposes, comprising the le

36、tters “PN or Class” followed by a dimensionless number indirectly related to the pressure retaining capability as a function of temperature of the component 3.7 cold working pressure CWP maximum fluid pressure assigned to a valve for operation at a fluid temperature of 20 C to 38 C Note 1 to entry:

37、Valve pressure-temperature ratings are specified in product standards by reference to PN or Class designations. 3.8 double block-and-bleed valve valve with two separate closure seating surfaces that, when in the closed position, block the flow from both ends when the cavity between the two seating s

38、urfaces is vented through a bleed connection between the body cavity and the outside environment 4 Test requirements Test procedures and acceptance criteria shall be as given in Table 1 and Annex A. a) Shell strength test P10 is mandatory for every valve except when a statistical sampling is permitt

39、ed. b) Shell tightness test P11 is mandatory for every valve except when a statistical sampling is accepted. c) Seat tightness test P12 is mandatory for every isolating and check valve except when a statistical sampling is accepted. The seat tightness test for control valves shall be in accordance w

40、ith EN 1349. DIN EN 12266-1:2012-06 EN 12266-1:2012 (E) 7 Table 1 Requirements for tests, test procedures and acceptance criteria Test Purpose Test procedure and acceptance criteria Title Test reference Shell strength aP10 To confirm the pressure containing capability of the shell against internal p

41、ressure see EN 12266-1:2012, A.2 Shell tightness aP11 To confirm the leak tightness of the shell including the operating mechanism sealing against internal pressure see EN 12266-1:2012, A.3 Seat tightness for valves bP12 To confirm the capability of the seat(s) to comply with the specified leakage r

42、ate: at the time of manufacture; in the direction(s) for which the valve is designed. see EN 12266-1:2012, A.4 Obturator strength cP20 To check the pressure containing capability of the obturator see EN 12266-2:2012, A.2 aThe shell strength and shell tightness tests may be carried out at the same ti

43、me. bSee Table A.3 for the type of valve. cTo check the pressure containing capability of the obturator, if valve is used as the single means of insulation between the content of an item of pressure equipment and the downstream equipment not designed to withstand the upstream pressure. 5 Designation

44、 Tests in accordance with this European Standard shall be designated by the following elements: title of test and test reference; EN 12266-1. EXAMPLE Shell strength, Test P10 EN 12266-1 DIN EN 12266-1:2012-06 EN 12266-1:2012 (E) 8 Annex A (normative) Test procedures and acceptance criteria A.1 Gener

45、al requirements A.1.1 Purpose These general requirements shall be applied to all the test procedures detailed in this annex. Safety aspects of valve testing are not covered in this European Standard. NOTE Users of this European Standard should analyse the hazard resulting from the pressure and take

46、proper safety precautions. A.1.2 Test equipment The test equipment shall be of such a design that it does not subject the valve to externally applied loads which may affect the results of the test. NOTE The test equipment can apply external loads sufficient to react to the forces resulting from the

47、test pressure. When using test equipment and procedures different to that detailed in this European Standard, the manufacturer shall be able to demonstrate the equivalence of such test procedures and acceptance criteria with the requirements of this European Standard. A.1.3 Measuring equipment The m

48、easuring equipment shall be capable of measuring fluid pressure with an accuracy of 5 % of the required test pressure. A.1.4 Painted, coated or lined valves Before the shell strength test, reference P10, and the shell tightness test, reference P11, valves shall not be painted externally or otherwise coated with materials capable of sealing against leakage from external surfaces of the shell. Valves with liners, internal linings or coatings formin