BS EN 1514-3-1997 Flanges and their joints - Dimensions of gaskets for PN-designated flanges - Non-metallic PTFE envelope gaskets《法兰及其连接件 PN-标示的法兰用衬垫的尺寸 非金属PTFE包封衬垫》.pdf

1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS EN 1514-3 : 1997 The E

2、uropean Standard EN 1514-3 : 1997 has the status of a British Standard ICS 23.040.80 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Flanges and their joints Dimensions of gaskets for PN-designated flanges Part 3. Non-metallic PTFE envelope gasketsBS EN 1514-3 : 1997 This Brit

3、ish Standard, having been prepared under the direction of the Sector Board for Engineering, was published under the authority of the Standards Board and comes into effect on 15 August 1997 BSI 1997 The following BSI references relate to the work on this standard: Committee reference PSE/2 Draft for

4、comment 94/709821 DC ISBN 0 580 27686 4 Amendments issued since publication Amd. No. Date Text affected Committees responsible for this British Standard The preparation of this British Standard was entrusted to Technical Committee PSE/2, Jointing materials and compounds, upon which the following bod

5、ies were represented: Asbestos Information Centre Ltd. British Adhesives and Sealants Association British Compressed Gases Association British Hydromechanics Research Group Chartered Institution of Water and Environmental Management Energy Industries Council Industrial Water Society L P Gas Associat

6、ion Water Services Association of England and WalesBS EN 1514-3 : 1997 BSI 1997 i Contents Page Committees responsible Inside front cover National foreword ii Foreword 2 Text of EN 1514-3 3ii BSI 1997 BS EN 1514-3 : 1997 National foreword This Part of BS EN 1514 has been prepared by Technical Commit

7、tee PSE/2, and is the English language version of EN 1514-3 : 1997 Flanges and their joints Dimensions of gaskets for PN-designated flanges Part 3: Non-metallic PTFE envelope gaskets, published by the European Committee for Standardization (CEN). This Part of BS EN 1514 supersedes BS 4865 : Part 3 :

8、 1989, which is withdrawn. Cross-references Publication referred to Corresponding British Standard EN ISO 6708 : 1995 BS EN ISO 6708 : 1996 Pipework components Definition and selection of DN (nominal size) Compliance with a British Standard does not of itself confer immunity from legal obligations.

9、Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, the EN title page, pages 2 to 6, an inside back cover and a back cover.CEN European Committee for Standardization Comite Europe en de Normalisation Europa isches Komitee fu r Normung Central Secretariat: r

10、ue de Stassart 36, B-1050 Brussels 1997 All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1514-3 : 1997 E EUROPEAN STANDARD EN 1514-3 NORME EUROPE ENNE EUROPA ISCHE NORM April 1997 ICS 23.040.80 Descriptors: Industrial piping, flange con

11、nections, pipe joints, dimensions, marking English version Flanges and their joints Dimensions of gaskets for PN-designated flanges Part 3: Non-metallic PTFE envelope gaskets Brides et leurs assemblages Dimensions des joints pour les brides de signe sP N Partie 3: Joints non me talliques a enveloppe

12、 PTFE Flansche und ihre Verbindungen Mae fu r Dichtungen fu r Flansche mit PN-Bezeichnung Teil 3: Nichtmetallische Weichstoffdichtungen mit PTFE-Mantel This European Standard was approved by CEN on 1997-01-09. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate

13、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 Central Secretariat or to any CEN member. This European Standard exists

14、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 Central Secretariat has the same status as the official versions. CEN members are the national standards bodies

15、 of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.Page 2 EN 1514-3 : 1997 BSI 1997 Foreword This European Standard has been prepared by Technical Committee CEN/TC 74, Flan

16、ges 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 publication of an identical text or by endorsement, at the latest by October 1997, and conflicting national standards shall be withdrawn at the latest by

17、October 1997. Annex A is informative and contains information to be supplied by the purchaser. Annex B is informative and contains A-deviations. EN 1514 consists of four Parts: Part 1: Specification for non-metallic flat gaskets with or without inserts Part 2: Specification for spiral wound gaskets

18、for use with steel flanges Part 3: Specification for non-metallic PTFE envelope gaskets Part 4: Specification for corrugated, flat or grooved metallic and filled metallic gaskets for use with steel flanges According to the CEN/CENELEC Internal Regulations, the national standards organizations of the

19、 following countries are bound to implement this European Standard: Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Contents Page Foreword 2 Introduction 3 1 Scope 3 2

20、Normative references 3 3 Definitions 3 3.1 DN 3 3.2 PN 3 4 Designations 3 4.1 Range of PN designations 3 4.2 Range of DN (nominal sizes) 3 4.3 Gasket types 3 4.4 Information to be supplied by the purchaser 3 5 Gasket designs 3 6 Gasket type 4 7 Dimensions 4 8 Marking 4 Annexes A (informative) Inform

21、ation to be supplied by the purchaser 6 B (informative) A-deviation 6Page 3 EN 1514-3 : 1997 BSI 1997 Introduction WARNING. Gaskets made to this standard may contain asbestos. Materials containing asbestos may be subject to legislation that requires precautions to be taken when handling them to ensu

22、re that they do not constitute a hazard to health (see annex B). Attention is drawn to relevant EEC directives. 1 Scope This standard specifies the dimensions and marking of IBC (inside bolt circle) non-metallic PTFE envelope gaskets for use with flanges complying with prEN 1092-1, prEN 1092-2, prEN

23、 1092-3 and prEN 1092-4, for PN 6 up to and including PN 63, up to and including DN 600. NOTE 1. Dimensions of other types of gaskets for use with flanges to prEN 1092-1, prEN 1092-2, prEN 1092-3 and prEN 1092-4 are given in EN 1514-1, EN 1514-2 and EN 1514-4. NOTE 2. Annex A lists information that

24、should be supplied by the purchaser when ordering gaskets. NOTE 3. This standard does not provide dimensions to suit PN 100 flanges, as gaskets covered by this standard are not necessarily intended for such applications. 2 Normative references This European Standard incorporates by dated or undated

25、reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when inco

26、rporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies. prEN 1092-1 Flanges and their joints Circular flanges for pipes, valves and fittings Part 1: Steel flanges PN designated prEN 1092-2 Flanges and their joints Part 2: Cast iron f

27、langes prEN 1092-3 Flanges and their joints Circular flanges for pipes, valves, fittings and accessories Part 3: Copper alloy and composite flanges PN designated prEN 1092-4 Flanges and their joints Circular flanges for pipes, valves, fittings and accessories PN designated Part 4: Aluminium alloy fl

28、anges EN 1333 Pipework components Definition and selection of PN EN ISO 6708 Pipework components Definition and selection of DN (nominal size) (ISO 6708 : 1995) 3 Definitions For the purposes of this standard the following definitions apply. 3.1 DN See EN ISO 6708. 3.2 PN See EN 1333. 4 Designations

29、 4.1 Range of PN Designations Gaskets shall be designated as suitable for use with one or more of the following PN designations as follows: PN 6 PN 25 PN 10 PN 40 PN 16 PN 63 4.2 Range of DN (nominal sizes) Gasket nominal sizes shall be designated in accordance with the ranges specified in table 1.

30、4.3 Gasket types Gasket types, as defined in clause 5 and as illustrated in figure 1, shall be designated as: type A: slit type; type B: machined type; type C: folded tape type. 4.4 Information to be supplied by the purchaser NOTE. For information to be supplied by the purchaser, see annex A. 5 Gask

31、et designs Gaskets for which dimensions are specified shall be one of the designs shown in figure 1. NOTE 1. Gasket inserts are usually manufactured from compressed fibre sheet jointings, including asbestos. Other materials are also used to suit particular applications. WARNING. Gaskets made to this

32、 standard may contain asbestos. Materials containing asbestos may be subject to legislation that requires precautions to be taken when handling them to ensure that they do not constitute a hazard to health (see annex B). Attention is drawn to relevant EEC directives. NOTE 2. Each design is applicabl

33、e only to certain DN and PN of flanges and is dependant upon manufacturing constraints. NOTE 3. The selection of the gasket should take into account the fluid, the operating conditions, the properties of the gasket materials, the type and surface finish of flange facing and the flange bolt loading.

34、It is recommended that selection of gaskets for any particular application is made in consultation with the gasket supplier (see annex A).Page 4 EN 1514-3 : 1997 BSI 1997 Type A Type B Type C Figure 1. Typical designs of non-metallic PTFE envelope gaskets 6 Gasket type Gaskets are IBC (inside bolt c

35、ircle) type and shall be for use with type A (flat face) or type B (raised face) flange facings. NOTE. Type A and type B flange facings are shown in prEN 1092-1. 7 Dimensions The dimensions of non-metallic PTFE envelope gaskets shall be as given in table 1. NOTE. Gasket thickness is not specified bu

36、t it should be selected taking into account the properties of the gasket materials and the intended service application. It is recommended that the gasket manufacturer should be consulted when selecting gasket thickness (see annex A). 8 Marking Gaskets shall be identified either individually or on t

37、he packaging containing the gasket(s) with the following information: a) the number and Part of this European Standard, i.e. EN 1514-3; b) gasket type designation (see 4.3); c) DN followed by the appropriate number (see table 1); d) PN designation (see table 1); NOTE. Certain gaskets may be suitable

38、 for more than one PN designation and may be suitably marked. e) thickness; f) materials; g) manufacturers name or trademark. EXAMPLE. EN 1514-3, Type C, DN 150, PN 6, 2 mm, XXX, AAA/BBBPage 5 EN 1514-3 : 1997 BSI 1997 Table 1. Dimensions of non-metallic PTFE envelope gaskets Dimensions in millimetr

39、es DN Gasket inside diameter min. Envelope outside diameter min. Gasket outside diameter PN6 PN1 0 PN1 6 PN2 5 PN4 0 PN6 3 10 18 36 39 46 46 46 46 56 15 22 40 44 51 51 51 51 61 20 27 50 54 61 61 61 61 72 25 34 60 64 71 71 71 71 82 32 43 70 76 82 82 82 82 88 40 49 80 86 92 92 92 92 103 50 61 92 96 10

40、7 107 107 107 113 65 77 110 116 127 127 127 127 138 80 89 126 132 142 142 142 142 148 100 115 151 152 162 162 168 168 174 125 141 178 182 192 192 194 194 210 150 169 206 207 218 218 224 224 247 200 220 260 262 273 273 284 290 309 250 273 314 317 328 329 340 352 364 300 324 365 373 378 384 400 417 42

41、4 350 356 412 423 438 444 457 474 486 400 407 469 473 489 495 514 546 543 450 458 528 528 539 555 564 571 500 508 578 578 594 617 624 628 600 610 679 679 695 734 731 747 Page 6 EN 1514-3 : 1997 BSI 1997 Annex A (informative) Information to be supplied by the purchaser Before ordering a gasket it is

42、recommended that the selection of the gasket design should be made in consultation with the gasket supplier. The selection of gasket design and thickness should take account of the fluid, the operating conditions, the properties of the gasket materials, the type and surface finish of the flange faci

43、ng and the flange bolt loading. The following information should be supplied by the purchaser when ordering gaskets: a) the number and Part of this European Standard, i.e. EN 1514-3; b) gasket type (see 4.3); c) DN (see table 1); d) PN designation (see table 1); e) thickness (see note to clause 7);

44、f) expected operating conditions for which the gasket will be used. Annex B (informative) A-deviation This European Standard is mandated under the Council Directive on the approximation of the laws of the Member States concerning pressure equipment. A-deviation: National deviation due to regulations

45、, the alteration of which is for the time being outside the competence of the CEN/CENELEC member. NOTE. (from CEN/CENELEC IR Part 2, 3.1.9). Where standards fall under EC Directives, it is the view of the Commission of the European Communities (OJ No G 59, 9.3.1982) that the effect of the decision o

46、f the Court of Justice in case 815/79 Cremonini/Vrankovich (European Court Reports 1980, p. 3583) is that compliance with A-deviations is no longer mandatory and that the free movement of products complying with such a standard should not be restricted except under the safeguard procedure provided f

47、or in the relevant Directive. A-deviations in an EFTA country are valid instead of the relevant provisions of the European Standard in that country until they have been removed. With reference to clause 5, gasket designs: Austria Order on the use of asbestos (BGBI. Nr 324/1990 Asbestverordnung). Acc

48、ording to this order restrictions for trading, fabrication, use and marking of materials containing asbestos apply in Austria. Denmark Bekendtgrelse om asbest (Nr. 660 af 24. Juni 1986). Bekendtgrelse om aendring af bekendtgrelse om asbest (Nr. 139 af 23. Marts 1987) (Nr. 984 af 11. December 1992).

49、According to this order, the use of asbestos and materials containing asbestos is prohibited in Denmark. France Decret n o 96-1132 du 24 Decembre 1996 modifiant le decret n o 96-98 du 7 Fevrier 1996 relatif a la protection des travailleurs contre les risques lies a linhalation de poussieres damiante. Decret n o 96-1133 du 24 Decembre 1996 relatif a linterdiction de lamiante, pris en application du code du travail et du code de la consommation. According to these regulations, within the sco