DIN EN 12560-2-2013 Flanges and their joints - Dimensions of gaskets for Class-designated flanges - Part 2 Spiral wound gaskets for use with steel flanges German version EN 12560-2.pdf

1、December 2013 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).I

2、CS 23.040.80!%*r“2077998www.din.deDDIN EN 12560-2Flanges and their joints Dimensions of gaskets for Class-designated flanges Part 2: Spiral wound gaskets for use with steel flanges;English version EN 12560-2:2013,English translation of DIN EN 12560-2:2013-12Flansche und ihre Verbindungen Mae von Dic

3、htungen fr Flansche mit Class-Bezeichung Teil 2: Spiraldichtungen fr Stahlflansche;Englische Fassung EN 12560-2:2013,Englische bersetzung von DIN EN 12560-2:2013-12Brides et leurs assemblages Dimensions des joints pour les brides dsignes Class Partie 2: Joints spirals pour utilisation avec des bride

4、s en acier;Version anglaise EN 12560-2:2013,Traduction anglaise de DIN EN 12560-2:2013-12SupersedesDIN EN 12560-2:2001-04www.beuth.deIn case of doubt, the German-language original shall be considered authoritative.Document comprises 17 pages 11.13 DIN EN 12560-2:2013-12 2 A comma is used as the deci

5、mal marker. National foreword This document (EN 12560-2:2013) has been prepared by Technical Committee CEN/TC 74 “Flanges and their joints” (Secretariat: DIN, Germany). The responsible German body involved in its preparation was the Normenausschuss Rohrleitungen und Dampfkesselanlagen (Piping and Bo

6、iler Plant Standards Committee), Working Committee NA 082-00-16 AA Flansche und ihre Verbindungen. Amendments This standard differs from DIN EN 12560-2:2001-04 as follows: a) normative references have been updated; b) Subclause 5.2 “Materials” has been revised and the warning note concerning asbesto

7、s has been deleted; c) Clause 8 “Gasket types” has been revised; d) all tables have been revised; e) the former Annex A (informative) “A-deviations” concerning asbestos has been deleted; f) a Bibliography has been added. Previous editions DIN EN 12560-2: 2001-04 EUROPEAN STANDARD NORME EUROPENNE EUR

8、OPISCHE NORM EN 12560-2 September 2013 ICS 23.040.01 Supersedes EN 12560-2:2001English Version Flanges and their joints - Dimensions of gaskets for Class-designated flanges - Part 2: Spiral wound gaskets for use with steel flanges Brides et leurs assemblages - Dimensions des joints pour brides dsign

9、es Class - Partie 2: Joints spirals pour utilisation avec des brides en acier Flansche und ihre Verbindungen - Dichtungenfr Flansche mit Class-Bezeichnung - Teil 2: SpiraldichtungenfrStahlflansche This European Standard was approved by CEN on 10 August 2013. CEN members are bound to comply with the

10、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 CEN-CENELEC Management

11、Centre 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 CEN-CENELEC Management Centre has the same status as

12、 the official versions. CEN members are the national standards bodies of 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, Net

13、herlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, 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 2013 CEN All r

14、ights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12560-2:2013: EMae vonlesEN 12560-2:2013 (E) 2 Contents Page Foreword 3 1 Scope 4 2 Normative references 4 3 Terms and definitions .4 4 Designations 5 4.1 Range of Class designations 5 4.2 Ran

15、ge of gasket sizes .5 4.3 Gasket designation 5 4.4 Information to be supplied by the purchaser .5 5 Gasket designs and materials 6 5.1 Gasket designs 6 5.2 Materials .6 6 Construction .6 7 Gasket compression .7 8 Gasket types .7 9 Dimensions .7 10 Marking 11 10.1 General . 11 10.2 Colour coding 11 A

16、nnex A (informative) Minimum pipe wall thickness . 13 Bibliography . 15 DIN EN 12560-2:2013-12 EN 12560-2:2013 (E) 3 Foreword This document (EN 12560-2:2013) has been prepared by Technical Committee CEN/TC 74 “Flanges and their joints”, the secretariat of which is held by DIN. This European Standard

17、 shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by March 2014, and conflicting national standards shall be withdrawn at the latest by March 2014. Attention is drawn to the possibility that some of the elements of this doc

18、ument may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 12560-2:2001. The main changes to this standard compared with EN 12560-2:2001 are: a) The normative references have been updated. b)

19、5.2 has been revised, and warning clause on asbestos has been deleted. c) Gasket requirements in Clause 8 have been revised. d) All tables in the standard have been revised. e) Informative Annex A with A-deviations for use of asbestos has been deleted. f) A Bibliography has been added. EN 12560, “Fl

20、anges and their joints Gaskets for Class-designated flanges“ consists of seven parts: Part 1: Non-metallic flat gaskets with or without inserts Part 2: Spiral wound gaskets for use with steel flanges (the present document) Part 3: Non-metallic PTFE envelope gaskets Part 4: Corrugated, flat or groove

21、d metallic and filled metallic gaskets for use with steel flanges Part 5: Metallic ring joint gaskets for use with steel flanges Part 6: Covered serrated metal gaskets for use with steel flanges Part 7: Covered metal jacketed gaskets for use with steel flanges According to the CEN-CENELEC Internal R

22、egulations, the national standards organisations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland

23、, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. DIN EN 12560-2:2013-12 EN 12560-2:2013 (E) 4 1 Scope This European Standard specifies the dimensions, design, types, designati

24、on, materials and marking of spiral wound gaskets for use with type A flat face or type B raised face flange facings complying with EN 1759-1 for the following Class designations: Class 150, to Class 1 500 for nominal sizes DN 15 to DN 600, and Class designation 2 500 up to and including DN 300. The

25、 centering rings for the spiral wound gaskets according to this standard are sized for use with imperial bolting. The dimensions of spiral wound gaskets for tongue and groove flange facing types and spigot and recess flange facing types to EN 1759-1 are not included in this standard. Such gaskets ma

26、y be available, however, for these types of flange and the purchaser is advised to consult the manufacturer as to their availability. Similarly, for slip-on or screwed flange types, the manufacturer should be consulted about availability. NOTE Dimensions of other types of gasket for use with flanges

27、 complying with the requirements of EN 1759-1 are given in EN 12560-1, EN 12560-3, EN 12560-4 and EN 12560-5, EN 12560-6 and EN 12560-7. 2 Normative references Not applicable. 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 DN alphanumeric de

28、signation of size for components of a pipework system, which is used for reference purposes, comprised of the letters DN followed by a dimensionless whole number which is indirectly related to the physical size, in millimetres, of the bore or outside diameter of the end connections Note 1 to entry:

29、The number following the letters DN does not represent a measurable value and should not be used for calculation purposes except where specified in the relevant standard. SOURCE: EN ISO 6708:1995, 2.1, definition slightly modified 3.2 NPS alphanumeric designation of size for components of a pipework

30、 system, which is used for reference purposes, comprised of the letters NPS followed by a dimensionless number which is indirectly related to the physical size of the bore or outside diameter of the end connections Note 1 to entry: The number following the letters NPS does not represent a measurable

31、 value and should not be used for calculation purposes except where specified in the relevant standard. SOURCE: EN 1759-1:2004, 3.3, definition slightly modified DIN EN 12560-2:2013-12 EN 12560-2:2013 (E) 5 3.3 Class alphanumeric designation used for reference purposes related to a combination of me

32、chanical and dimensional characteristics of a component of a pipework system, comprised of the word Class followed by a dimensionless whole number Note 1 to entry: The number following the word Class does not represent a measurable value and should not be used for calculation purposes except where s

33、pecified in the relevant standard. Note 2 to entry: The designation Class is not meaningful unless it is related to the relevant component standard number. SOURCE: EN 1759-1:2004, 3.1, definition slightly modified and NOTE 3 deleted 4 Designations 4.1 Range of Class designations Gaskets shall be des

34、ignated as suitable for use with one or more of the flanges designated: a) Class 150; b) Class 300; c) Class 600; d) Class 900; e) Class 1 500; f) Class 2 500. 4.2 Range of gasket sizes Gasket nominal sizes shall be designated in accordance with the ranges specified in Table 1. 4.3 Gasket designatio

35、n Gasket types, as defined in Clause 8 and illustrated in Figure 1, shall be designated as: a) Type C/I; or b) Type C/O. 4.4 Information to be supplied by the purchaser When ordering gaskets, the purchaser shall provide to the supplier the: a) number and Part of this European Standard; b) gasket typ

36、e designation (see 4.3) for incorporation of inner ring (see Clause 8); c) nominal size (see Table 1); d) Class designation (see Table 1); DIN EN 12560-2:2013-12 EN 12560-2:2013 (E) 6 e) required gasket materials or, where the gasket manufacturer is required to select the materials, the expected ope

37、rating conditions for the application(s) for which the gasket(s) will be used. Before ordering a gasket, it is recommended that the selection of the gasket type be made in consultation with the gasket supplier. The selection of gasket type should take account of the fluid, the operating conditions,

38、the properties of the gasket materials, the type and surface finish of the flange facing and the flange bolt loading. EXAMPLE A gasket according to EN 12560-2, Type C/I, of nominal size DN 100, Class 150, winding material X4CrNi18-10 (abbreviation 304) and PTFE filler material shall be designated as

39、: Gasket EN 12560-2 C/I DN 100 Class 150 304 PTFE 5 Gasket designs and materials 5.1 Gasket designs Gaskets for which dimensions are specified shall be one of the designs shown in Figure 1. The centering ring and, where used, the inner ring, shall be suitably grooved to retain the sealing element. a

40、) Type C/l b) Type C/O Figure 1 Spiral wound gasket designs NOTE 1 Type A and type B flange facings are shown in EN 1759 -1. NOTE 2 The profile of the metal winding of the sealing element is at the option of the manufacturer. 5.2 Materials A list of metal windings and filler materials is given in Ta

41、ble 3. The inner ring material shall match the winding material unless the purchaser specifies otherwise. Gaskets made to this standard shall not contain asbestos. The centering ring may be carbon steel that is painted, metal plated or otherwise coated to inhibit atmospheric corrosion. The materials

42、 of the gasket, may, if required be chosen by the manufacturer to suit the operating conditions in the enquiry and/or order (see 4.4). 6 Construction Spiral wound gaskets shall be constructed as alternative plies of preformed metal windings and pliant fillers which are spirally wound. For the finish

43、ed gasket, the filler shall be essentially flush with, but not below, the metal winding on both contact faces of the gasket. The thickness of the metal winding strip in the sealing DIN EN 12560-2:2013-12 EN 12560-2:2013 (E) 7 element shall be between 0,15 mm and 0,23 mm. The filler material thicknes

44、s is left to the discretion of the manufacturer. The profile of the metal winding of the sealing element is at the option of the manufacturer. The inner windings shall have a minimum of three plies of preformed metal strip without filler. The inner plies shall be spot-welded about their circumferenc

45、e with a minimum of three welds, each no further than 75 mm apart. The outer windings shall have a minimum of three plies of preformed metal without filler. The outer two plies shall be spot-welded about their circumference with a minimum of three terminal welds, with no more than 40 mm distance bet

46、ween the first and terminal welds. Four additional loose preformed metal windings beyond the terminal weld may be used to retain the gasket into the centering ring. 7 Gasket compression Gaskets for DN 15, DN 20 and DN 25 in Class 150, Class 300 and Class 600 shall be constructed so that an applied u

47、niform bolt stress of 172 MPa, based on the nominal bolt root diameter, will compress the gasket to a thickness of 3,2 mm to 3,4 mm. All other gasket sizes and classes shall be constructed so that a uniform bolt stress of 207 MPa will compress the gasket to a thickness of 3,2 mm to 3,4 mm. 8 Gasket

48、types Gaskets shall be either of the following types: a) sealing element type with centering ring and inner ring (designation: Type C/I); or b) sealing element type with centering ring only (designation: Type C/O). All gaskets shall have a centering ring. The centering ring thickness shall be from 2,97 mm to 3,33 mm and suitably grooved on the inside diameter so as to retain the spiral wound sealing element. Inner rings shall be furnished with all spiral wound gaskets having PTFE (polytetrafluoroethylene)