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1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS EN 1514-2 : 1997 The E
2、uropean Standard EN 1514-2 : 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 2. Spiral wound gaskets for use with steel flanges BS EN 1514-2 :
3、1997 This British 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 PS
4、E/2 Draft for comment 94/709820 DC ISBN 0 580 27685 6 Amendments issued since publication Amd. No.DateText 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 f
5、ollowing bodies 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
6、Gas Association Water Services Association of England and Wales BS EN 1514-2 : 1997 BSI 1997i Contents Page Committees responsibleInside front cover National forewordii Foreword2 Text of EN 1514-23 ii BSI 1997 BS EN 1514-2 : 1997 National foreword This Part of BS EN 1514 has been prepared by Technic
7、al Committee PSE/2, and is the English language version of EN 1514-2 : 1997 Flanges and their joints Dimensions of gaskets for PN-designated flanges Part 2: Spiral wound gaskets for use with steel flanges, published by the European Committee for Standardization (CEN). This Part of BS EN 1514 superse
8、des BS 4865 : Part 2 : 1989, which is withdrawn. Cross-references Publication referred toCorresponding British Standard EN ISO 6708 : 1995BS 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
9、 legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, the EN title page, pages 2 to 8, an inside back cover and a back cover. CEN European Committee for Standardization Comite Europe en de Normalisation Europa isches Komitee fu r Normung C
10、entral Secretariat: rue 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 1514-2 : 1997 E EUROPEAN STANDARDEN 1514-2 NORME EUROPE ENNE EUROPA ISCHE NORM April 1997 ICS 23.040.80 Descriptors: Industria
11、l piping, flange connections, pipe joints, spiral wound gaskets, pipe flanges, steels, dimensions, marking English version Flanges and their joints Dimensions of gaskets for PN-designated flanges Part2: Spiral wound gaskets for use with steel flanges Brides et leurs assemblages Dimensions des joints
12、 pour les brides de signe s PN Partie 2: Joints spirale s pour utilisation avec des brides en acier Flansche und ihre Verbindungen Mae fu r Dichtungen fu r Flansche mit PN-Bezeichnung Teil 2: Spiraldichtungen fu r Stahlflansche This European Standard was approved by CEN on 1997-01-09. CEN members ar
13、e bound to comply with the 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
14、the Central Secretariat 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 Central Secretariat has the same st
15、atus as the official versions. CEN members are the national standards bodies of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. Page 2 EN 1514-2 : 1997 BSI 1997 Foreword Th
16、is European Standard 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 publication of an identical text or by endorsement, at the latest by October
17、1997, and conflicting national standards shall be withdrawn at the latest by 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 gas
18、kets with or without inserts Part 2:Specification for spiral wound gaskets 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/
19、CENELEC Internal Regulations, the national standards organizations of the 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
20、 the United Kingdom. Contents Page Foreword2 Introduction3 1Scope3 2Normative references3 3Definitions4 3.1DN4 3.2PN4 4Designations4 4.1Range of PN designations4 4.2Range of DN (nominal sizes)4 4.3Gasket types4 4.4Information to be supplied by the purchaser4 5Gasket designs4 6Gasket types5 7Dimensio
21、ns5 8Marking6 Annexes A(informative) Information to be supplied by the purchaser7 B(informative) A-deviation7 Page 3 EN 1514-2 : 1997 BSI 1997 Introduction The dimensions of spiral wound gaskets for tongue and groove flanges and spigot and recess flanges to EN 1092-1 are not included in this standar
22、d. Such gaskets may be available, however, for these types of flanges and the purchaser is advised to consult the manufacturer as to their availability. WARNING. Gaskets made to this standard may contain asbestos. Materials containing asbestos may be subject to legislation that requires precautions
23、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. 1 Scope This European Standard specifies the dimensions and marking of spiral wound gaskets for use in conjunction with flat face and raised face flan
24、ges complying with prEN 1092-1 for PN 10, PN 16, PN 25, PN 40, PN 63 and PN 100 and up to and including DN 900. 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 1514-3 and EN 1514-4. NOTE 2. Annex A
25、lists information that should be supplied by the purchaser when ordering gaskets. 2 Normative references This European Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the publicati
26、ons are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies. prEN 1092-1Flang
27、es and their joints Circular flanges for pipes, valves and fittings Part 1: Steel flanges PN designated prEN 1092-2Flanges and their joints Part 2: Cast iron flanges prEN 1092-3Flanges and their joints Circular flanges for pipes, valves, fittings and accessories Part 3: Copper alloy and composite fl
28、anges PN designated prEN 1092-4Flanges and their joints Circular flanges for pipes, valves, fittings and accessories PN designated Part 4: Aluminium alloy flanges EN 1333Pipework components Definition and selection of PN EN ISO 6708Pipework components Definition and selection of DN (nominal size) (I
29、SO 6708 : 1995) Page 4 EN 1514-2 : 1997 BSI 1997 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 4.1 Range of PN designations Gaskets shall be designated as suitable for use with one or more of the following
30、 PN designations of flange: PN 10PN 40 PN 16PN 63 PN 25PN 100 4.2 Range of DN (nominal sizes) Gasket nominal sizes shall be designated in accordance with the ranges specified in table 1. 4.3 Gasket types Gasket types, as defined in clause 6 and as illustrated in figure 1, shall be designated as: typ
31、e C/I: sealing element with centring ring and inner ring; type C/O: sealing element with centring ring. 4.4 Information to be supplied by the purchaser NOTE. For information to be supplied by the purchaser, see annex A. 5 Gasket designs Gaskets for which dimensions are specified shall be of one of t
32、he designs shown in figure 1. The clearance between the sealing element and the centring ring shall be such that the sealing element cannot fall out of the ring during normal handling. NOTE 1. Figure 2 shows a typical design of a metallic spiral wound gasket for use with type A or type B flanges. NO
33、TE 2. Type A and type B flange facings are illustrated in prEN 1092-1. NOTE 3. The profile of the metal winding of the sealing element is at the option of the manufacturer. NOTE 4. The materials of the gasket are chosen by the manufacturer to suit the operating conditions. Therefore, the purchaser s
34、hould define the operating conditions in the enquiry and/or order (see annex A). 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 ensure that they do not constitute a h
35、azard to health (see annex B). Attention is drawn to relevant EEC directives. NOTE 5. The attention of the user is drawn to the load necessary to compress spiral wound gaskets and the available load with PN 10 and PN 16 flanges should be verified as adequate prior to using these gaskets. a) Type C/I
36、 b) Type C/O Figure 1. Spiral wound gaskets Page 5 EN 1514-2 : 1997 BSI 1997 Dimensions in millimetres Figure 2. Dimensions of typical metallic spiral wound gaskets 6 Gasket types Gaskets shall be one of the following types: a) type C/I sealing element with centring ring and inner ring; b) type C/O
37、sealing element with centring ring. All gaskets shall have a centring ring. All PN 63 and PN 100 gaskets shall have an inner ring. All gaskets containing PTFE filler material shall have an inner ring. NOTE 1. The use of an inner ring is recommended for all PN designations and the purchaser should sp
38、ecify on his enquiry and/or order if an inner ring is required for PN 10, PN 16, PN 25 and PN 40 gaskets (see annex A). NOTE 2. The selection of gasket type should take into account the fluids, the operating conditions, the properties of the gasket materials, the type and surface finish of the flang
39、e facing and the flange bolt loading. It is recommended that selection of gaskets for any particular application is made in consultation with the gasket supplier (see annex A). 7 Dimensions The dimensions of spiral wound gaskets for types A and B flange facings shall be as given in table 1, and over
40、all thickness, including filler, shall be as given in figure 2. Page 6 EN 1514-2 : 1997 BSI 1997 Table 1. Dimensions of spiral wound gaskets for type A and type B flange facings Dimensions in millimetres DNInner ring inside diameter min.2) Sealing element inside diameter min. Sealing element outside
41、 diameter max. Centring ring outside diameter1) PN 10 to PN 40 PN 63 and PN 100 PN 10PN 16PN 25PN 40PN 63PN 100 101523,636,436,4484848485858 151927,640,440,4535353536363 202433,647,448,4636363637474 253040,655,456,4737373738484 323949,666,467,4848484849090 404555,672,474,494949494105105 505667,686,4
42、88,4109109109109115121 657283,6103,4106,4129129129129140146 808496,6117,4120,4144144144144150156 100108122,6144,4148,4164164170170176183 125133147,6170,4174,4194194196196213220 150160176,6200,4205,4220220226226250260 200209228,6255,4263,4275275286293312327 250262282,4310,4319,4330331343355367394 300
43、311331,6360,4369,4380386403420427461 350355374,6405,4413,4440446460477489515 400406425,6458,4466,4491498517549546575 450452476,6512,4541558567574 500508527,6566,4572,4596620627631660708 600610634,6675,4683,4698737734750768819 700710734,0778,5786,5813807836883956 800811835,0879,5887,5920914945994 900
44、909933,0980,5990,51020101410451114 1) The tolerances for the dimensions of the centring ring outside diameter of spiral wound gaskets aremm up to and including 2 0,8 0 DN 600 andmm above DN 600. 21,5 0 2) If the purchaser requires a specific dimension for the inner ring inside diameter then this req
45、uirement shall be stated on the enquiry and/or order (see annex A). 8 Marking The centring ring shall be marked with the following information: the manufacturers name or trade mark; DN followed by the appropriate number; the PN designation; the manufacturers symbols for the materials of the metal wi
46、nding, the filler material and (where applicable) the inner ring. EXAMPLE. AAA/BBB, DN 300, PN 25, XXX Gaskets shall be identified either individually or on the packaging containing the gasket(s) with the number of this European Standard, i.e. EN 1514-2. Page 7 EN 1514-2 : 1997 BSI 1997 Annex A (inf
47、ormative) Information to be supplied by the purchaser Before ordering a gasket it is recommended that the selection of the gasket type should be made in consultation with the gasket supplier. The selection of gasket type should take account of the fluid, the operating conditions, the properties of t
48、he gasket materials, the type and surface finish of the flange facing 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 1514-2; b) gasket type (see 4.3); c) DN (see table 1) and
49、any requirement for a specific inner ring inside diameter (see note 2 of table 1); d) PN designation (see table 1); e) whether an inner ring is required (see notes 1 and 2 to clause 6); 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, the alterat