DIN EN 1514-2-2014 Flanges and their joints - Gaskets for PN-designated flanges - Part 2 Spiral wound gaskets for use with steel flanges German version EN 1514-2 2014《法兰及其连接件 PN标示法.pdf

1、December 2014 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!%OEnglish version EN 1514-2:2014,English translation of DIN EN 1514-2:2014-12Flansche und ihre Verbindungen Dichtungen fr Flansche mit PN-Bezeichnung Teil 2: Spiraldichtungen fr Stahlflansche;Englische Fassung EN 1514-2:2014,Englische bersetzung von DIN EN 1514-2:2014-12Brides et leurs

3、assemblages Joints pour les brides dsignes PN Partie 2: Joints spirals pour utilisation avec des brides en acier;Version anglaise EN 1514-2:2014,Traduction anglaise de DIN EN 1514-2:2014-12SupersedesDIN EN 1514-2:2005-08www.beuth.deDocument comprises 18 pagesIn case of doubt, the German-language ori

4、ginal shall be considered authoritative.11.14 DIN EN 1514-2:2014-12 2 A comma is used as the decimal marker. National foreword This document (EN 1514-2:2014) has been prepared by Technical Committee CEN/TC 74 “Flanges and their joints” (Secretariat: DIN, Germany). The responsible German body involve

5、d in its preparation was the DIN-Normenausschuss Rohrleitungen und Dampfkesselanlagen (DIN Standards Committee Piping and Boiler Plant), Working Committee NA 082-00-16 AA Flansche und ihre Verbindungen. Amendments This standard differs from DIN EN 1514-2:2005-08 as follows: a) dimensions for PN 16 h

6、ave been included; b) in Table 2, the non-metallic filler material “chrysotile asbestos” has been deleted; c) the standard has been editorially revised. Previous editions DIN EN 1514-2: 1997-08, 2005-08 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 1514-2 September 2014 ICS 23.040.80 Supersed

7、es EN 1514-2:2005English Version Flanges and their joints - Gaskets for PN-designated flanges - Part 2: Spiral wound gaskets for use with steel flanges Brides et leurs assemblages - Joints pour les brides dsignes PN - Partie 2 : Joints spirals pour utilisation avec des brides en acier Flansche und i

8、hre Verbindungen - Dichtungen fr Flansche mit PN-Bezeichnung - Teil 2: Spiraldichtungen fr Stahlflansche This European Standard was approved by CEN on 25 July 2014. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Stand

9、ard 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 official versions (English

10、, 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 Austria, Belgium, Bul

11、garia, 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, Sweden, Switzerland, T

12、urkey 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 2014 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members

13、. Ref. No. EN 1514-2:2014 EEN 1514-2:2014 (E) 2 Contents Page Foreword 3 Introduction .4 1 Scope 5 2 Normative references 5 3 Terms and definitions .5 4 Designations 6 4.1 Essential features and dimensions6 4.1.1 General 6 4.1.2 Maximum compression .7 4.1.3 Use of an inner ring .7 4.2 Range of PN de

14、signations 7 4.3 Range of DN (nominal sizes) 8 4.4 Gasket types .8 4.5 Information to be supplied by the purchaser .8 5 Gasket designs 8 6 Gasket types .9 7 Dimensions .9 8 Marking 13 8.1 General . 13 8.2 Colour coding 13 Annex A (informative) Information to be supplied by the purchaser 15 Bibliogra

15、phy . 16 DIN EN 1514-2:2014-12 EN 1514-2:2014 (E) 3 Foreword This document (EN 1514-2:2014) has been prepared by Technical Committee CEN/TC 74 “Flanges and their joints”, the secretariat of which is held by DIN. This European Standard shall be given the status of a national standard, either by publi

16、cation of an identical text or by endorsement, at the latest by March 2015, and conflicting national standards shall be withdrawn at the latest by March 2015. 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 shal

17、l not be held responsible for identifying any or all such patent rights. This document supersedes EN 1514-2:2005. The reason for the revision is to include dimensions for PN 16. The dimensions of the various components of the spiral wound gaskets described and their tolerances have been set with the

18、 objective of controlling the possibility of protrusion of the inner ring into the bore of the pipeline being sealed. The other features of this European Standard have been set in order to ensure good functionality of spiral wound gaskets made according to this European Standard. EN 1514, Flanges an

19、d their joints (Dimensions of) gaskets for PN-designated flanges, consists of the following parts: Part 1: Non-metallic flat gaskets with or without inserts; Part 2: Spiral wound gaskets for use with steel flanges; Part 3: Non-metallic PTFE envelope gaskets; Part 4: Corrugated, flat or grooved metal

20、lic and filled metallic 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; Part 8: Polymeric O-Ring gaskets for grooved flanges. According to the CEN-CENELEC Internal Regulations, t

21、he national standards organizations 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, Italy, Latv

22、ia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. DIN EN 1514-2:2014-12 EN 1514-2:2014 (E) 4 Introduction The dimensions of spiral wound gaskets for tongue and groove flanges and spigot and

23、 recess flanges to EN 1092-1 are not included in this part of EN 1514. Such gaskets may be available for these types of flange and the purchaser is advised to consult the manufacturer as to their availability. DIN EN 1514-2:2014-12 EN 1514-2:2014 (E) 5 1 Scope This part of EN 1514 specifies the dime

24、nsions and marking of spiral wound gaskets for use in conjunction with flat face and raised face flanges complying with the requirements of EN 1092-1 for PN 10, PN 16, PN 25, PN 40, PN 63, PN 100 and PN 160 and up to and including DN 1 000. NOTE 1 Dimensions of other types of gaskets for use with fl

25、anges to EN 1092-1, EN 1092-2, EN 1092-3 and EN 1092-4 are given in EN 1514-1, EN 1514-3, EN 1514-4, EN 1514-6, EN 1514-7 and EN 1514-8. NOTE 2 Annex A lists information to be supplied by the purchaser when ordering gaskets in circumstances where the choice of the gasket materials appropriate to the

26、 service is left to the manufacturer. 2 Normative references The following documents, in whole or 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 re

27、ferenced document (including any amendments) applies. EN 1333, Flanges and their joints - Pipework components - Definition and selection of PN EN ISO 6708, Pipework components - Definition and selection of DN (nominal size) (ISO 6708) 3 Terms and definitions For the purposes of this document, the fo

28、llowing terms and definitions apply. 3.1 DN alphanumeric designation of size for components of a pipework system, which is used for reference purposes. It comprises the letters DN followed by a dimensionless whole number which is indirectly related to the physical size, in millimetres, of the bore o

29、r outside diameter of the end connections Note 1 to entry: 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. Note 2 to entry: In those standards which use the DN designation syste

30、m, any relationship between DN and component dimensions should be given (e.g. DN/OD or DN/ID). Note 3 to entry: The preferred DN values are: DN 10 DN 250 DN 1 500 DN 15 DN 300 DN 1 600 DN 20 DN 350 DN 1 800 DN 25 DN 400 DN 2 000 DN 32 DN 450 DN 2 200 DN 40 DN 500 DN 2 400 DN 50 DN 600 DN 2 600 DN 60

31、 DN 700 DN 2 800 DN 65 DN 800 DN 3 000 DN 80 DN 900 DN 3 200 DIN EN 1514-2:2014-12 EN 1514-2:2014 (E) 6 DN 100 DN 1 000 DN 3 400 DN 125 DN 1 100 DN 3 600 DN 150 DN 1 200 DN 3 800 DN 200 DN 1 400 DN 4 000 SOURCE: EN ISO 6708:1995, 2.1 and Clause 3 3.2 PN alphanumeric designation used for reference pu

32、rposes related to a combination of mechanical and dimensional characteristics of a component of a pipework system. It comprises the letters PN followed by a dimensionless number Note 1 to entry: The number following the letters PN does not represent a measurable value and should not be used for calc

33、ulation purposes except where specified in the relevant standard. Note 2 to entry: The designation PN is not meaningful unless it is related to the relevant component standard number. Note 3 to entry: The maximum allowable pressure of a pipework component depends on the PN number, the material and d

34、esign of the component, its maximum allowable temperature, etc. The relevant European Component standards include tables of specified pressure/temperature ratings or, in minimum, include rules how to determine pressure/temperature ratings. Note 4 to entry: It is intended that all components with the

35、 same PN and DN designations have the same mating dimensions for compatible flange types. Note 5 to entry: The preferred PN values are: PN 2,5 PN 25 PN 160 PN 6 PN 40 PN 250 PN 10 PN 63 PN 320 PN 16 PN 100 PN 400 SOURCE: EN 1333:2006, 2.1 and Clause 3 4 Designations 4.1 Essential features and dimens

36、ions 4.1.1 General A major feature of the design of spiral wound gaskets meeting the requirements of this European Standard is the minimisation of the possibility of the inner ring protruding into the bore of the pipe to which the flange is attached. The fit of the inner ring and sealing element rel

37、ative to the centring ring has been selected to comply with this requirement. The essential features of a spiral wound gasket that complies with the requirements of this European Standard are given in Figures 1 and 2 and/or are shown in Table 1. DIN EN 1514-2:2014-12 EN 1514-2:2014 (E) 7 Table 1 Spi

38、ral wound gaskets - Essential features Parameter Feature Movement of centre of inner ring relative to centring ring up to DN 200 : a maximum of 0,2 mm above DN 200 : a maximum of 0,4 mm Centring ring thickness 3 mm 0,25 mm Sealing element location groove shall be centrally located in the centring ri

39、ng centre 0,1 mm Number of empty wraps on external diameter of the sealing element 3 to 5 Number of empty wraps on the internal diameter of the sealing element 2 to 3 Number of welds on the inner and outer diameters of the sealing element, i.e. on the empty wraps Minimum of 4 Thickness of the metal

40、of the sealing element 0,2 mm 0,02 mm Width of the profiled metal of the sealing element 4,5 mm300.+mm Thickness of the filler material As appropriate for the filler type Protrusion of the filler above the profiled metal of the sealing element 0,3 mm 0,1 mm Compression of the sealing element Shall n

41、ot result in contact between the flange and the centring ring (also see 4.1.2) Graphite ash content 2 % maximum by weight PTFE filler May be either sintered or un-sintered Sharp edges on inner and centring ring Shall be removed Dimensions Shall be as given in Table 2 4.1.2 Maximum compression Metal

42、to metal contact between the centring ring and the flange shall not be achieved with the maximum load that can be generated by the flange bolts. 4.1.3 Use of an inner ring An inner ring shall be used with all gaskets using PTFE as the filler and with all gaskets for pressure groups PN 63, PN 100 and

43、 PN 160. In addition, it is strongly recommended that an inner ring should be used with all gaskets, this should be specified on the order for all gaskets for pressure groups PN 10, PN 16, PN 25 and PN 40. 4.2 Range of PN designations Gaskets shall be designated as suitable for use with one or more

44、of these PN flange designations: a) PN 10; b) PN 16; c) PN 25; DIN EN 1514-2:2014-12 EN 1514-2:2014 (E) 8 d) PN 40; e) PN 63; f) PN 100; g) PN 160. 4.3 Range of DN (nominal sizes) Gasket nominal sizes shall be designated in accordance with the ranges specified in Table 2. 4.4 Gasket types Gasket typ

45、es are shown in Clause 6 and illustrated in Figure 1. 4.5 Information to be supplied by the purchaser Where the purchaser requires the manufacturer to specify the materials of the gasket, then the minimum information that shall be supplied to the manufacturer with the order is given in Annex A. 5 Ga

46、sket designs Gaskets for which dimensions are specified shall be of one of the designs shown in Figure 1. The clearance between the sealing element and the centring ring shall be as shown in Figure 2. NOTE 1 Figure 1 shows a typical design of a metallic spiral wound gasket and, for use with type A o

47、r type B flanges. NOTE 2 Type A and type B flange facings are illustrated in EN 1092-1. NOTE 3 The profile of the metal winding of the sealing element is at the option of the manufacturer. The materials of the gasket may be specified either by: a) the purchaser; or b) if required by the purchaser, b

48、y the manufacturer to suit the application operating conditions. In this case, the purchaser shall define the operating conditions in the enquiry and/or order (see Annex A). The attention of the user is drawn to the load necessary to compress spiral wound gaskets and the available load with PN 10 flanges should be verified as adequate prior to using these gaskets. DIN EN 1514-2:2014-12 EN 1514-2:2014 (E) 9 a) Type C/I b) Type C/O Figure 1 Spiral wound gaskets 6 Gasket types Gaskets shall be either: a) Type C/I having