1、BRITISH STANDARD BS EN 1759-3:2003 Incorporating Corrigendum No. 1 Flanges and their joints Circular flanges for pipes, valves, fittings and accessories, Class designated Part 3: Copper alloy flanges The European Standard EN 1759-3:2003 has the status of a British Standard ICS 23.040.60 BS EN 1759-3
2、:2003 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 12 March 2004 BSI 25 August 2004 ISBN 0 580 43543 1 National foreword This British Standard is the official English language version of E N 1 7 5 9 - 3 : 2 0 0 3 , i n c l u d i n g C o r
3、r i g e n d u m J ul y 2 0 0 4 . I t s u p e r s e de s BS 1560-3.3:1989 which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee PSE/15, Flanges, which has the responsibility to: A list of organizations represented on this committee can be obtained on request
4、 to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Elec
5、tronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to
6、understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document com
7、prises a front cover, an inside front cover, the EN title page, pages 2 to 28, an inside back cover and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date Comments 15320 Corrigendum No. 1 25
8、 August 2004 Corrections to all FiguresEUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM EN17593 September2003 ICS23.040.60 Incorporating Corrigendum July 2004 Englishversion FlangesandtheirjointsCircularflangesforpipes,valves, fittingsandaccessories,ClassdesignatedPart3:Copperalloy flanges Bridesetleu
9、rsassemblagesBridescirculairespourtubes, appareilsderobinetterie,raccordsetaccessoires, dsignesClassPartie3:Bridesenalliagesdecuivre FlanscheundihreVerbindungenRundeFlanschefr Rohre,Armaturen,FormstckeundZubehrteile,nach ClassbezeichnetTeil3:FlanscheausKupferlegierungen ThisEuropeanStandardwasapprov
10、edbyCENon27June2003. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheMana
11、gementCentreortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheManagementCentrehasthesamestatusasthe official versions. CENmembersarethenationalsta
12、ndardsbodiesofAustria,Belgium,CzechRepublic,Denmark,Finland,France,Germany,Greece, Hungary,Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands,Norway,Portugal,Slovakia,Spain,Sweden,SwitzerlandandUn ited Kingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMU
13、NG ManagementCentre:ruedeStassart,36B1050Brussels 2003CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.EN17593:2003EEN 1759-3:2003/AC:2004 (E) 2 Contents Page Foreword3 Introduction .3 1 Scope 4 2 Normative references 6 3 Terms and definitions6 4 Desig
14、nation 7 4.1 General7 4.2 Standard designation 7 4.3 Information to be supplied by the equipment manufacturer.7 5 General requirements8 5.1 Materials .8 5.2 Repairs8 5.3 Bolting.8 5.4 Gaskets .8 5.5 Pressure/temperature (p/T) ratings8 5.6 Dimensions.9 5.7 Flange facings9 5.8 Spot facing or back faci
15、ng10 5.9 Tolerances 10 5.10 Marking .10 Annex A (informative) Information to be supplied by the equipment manufacturer21 Annex B (informative) Application and installation.22 Annex C (informative) Use of metric bolting in lieu of imperial bolting 23 C.1 General23 C.2 Gaskets .23 C.3 Comparable nomin
16、al bolt sizes23 C.4 Imperial/metric bolt comparisons 23 Annex D (informative) Approximate masses of flanges and collars24 Annex ZA (informative) Relationship between this European Standard and the Essential Requirements of EU Directive 97/23/EC .27 Bibliography 28EN 1759-3:2003/AC:2004 (E) 3 Forewor
17、d Due to the incorrect hatching, all figures were replaced. This document (EN 1759-3:2003) 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
18、cation of an identical text or by endorsement, at the latest by March 2004, and conflicting national standards shall be withdrawn at the latest by March 2004. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports
19、 essential requirements of the Pressure Equipment Directive (PED) 1) . For relationship with EU Directive(s), see informative annex ZA, which is an integral part of this standard. EN 1759 consists of the following parts: Part 1: Steel flanges (draft stage); Part 3: Copper alloy flanges (draft stage)
20、; Part 4: Aluminium alloy flanges (draft stage). The annexes A, B, C, D and ZA are informative. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic,
21、Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and the United Kingdom. Introduction This standard is related, but not identical, to IS0 7005-3 in respect of flanges having de
22、signations Class 150 and Class 300. Outside diameters and mating dimensions are in accordance with ANSI B16.24. Information on the use of metric bolting in lieu of imperial bolting which can be used with these flanges is given in an informative annex. The mating dimensions of the flanges of this sta
23、ndard are compatible with Class designated flanges of other materials in accordance with the other parts of EN 1759.1) Directive 97/23 EC of the European Parliament and of the Council of 29 May 1997 on the approximation of the Laws of the Member States concerning pressure equipment; OIEC L 181.EN 17
24、59-3:2003/AC:2004 (E) 4 1 Scope This European Standard specifies requirements for circular copper alloy flanges and copper alloy collars combined with loose steel plate flanges in Class designations Class 150 and Class 300 and nominal sizes from DN 10 to DN 900 (NPS to NPS 36) in the types shown in
25、Table 1. This standard also specifies dimensions and tolerances, materials and their associated pressure/temperature (p/T) ratings, flange facings and related surface finish, weld repairs and marking together with information on bolting, gaskets, application and installation and approximate flange m
26、asses. The flanges specified, with the exception of integral (type 21) flanges, are for attachment to copper or copper alloy tubes in accordance with EN 12449. NOTE 1 The size of copper and copper alloy tubes is designated by reference to the outside diameter in millimetres. NOTE 2 See also annex B.
27、 NOTE 3 Non-gasketed pipe joints are outside the scope of this standard. Table 1 Types of flanges and collars Type No. Description 01 Plate flange in copper alloy for brazing or welding 04 Loose plate flange in steel with a weld-neck collar (type 34) in copper alloy, for welding 05 Blank flange in c
28、opper alloy 05C Blank flange in steel clad with a copper alloy jointing face 07 Loose plate flange in steel with a slip-on collar (type 37) in copper alloy, for soft soldering, brazing or welding 11 Weld-neck flange in copper alloy for welding 12 Hubbed slip-on flange in copper alloy, for soft solde
29、ring, brazing or welding 14 Hubbed slip-on flange in copper alloy supplied with tube stops, for soft soldering, brazing or welding 21 Integral flange in copper alloy as part of some other equipment or component 34 Weld-neck collar in copper alloy 37 Slip-on collar in copper alloyEN 1759-3:2003/AC:20
30、04 (E) 5 Type 01 Plate flange in copper alloy for brazing or welding Type 04, 34 Loose plate flange in steel with a weld-neck collar(type 34) in copper alloy, for welding Type 05, 05C 05 Blank flange in copper alloy 05C Blank flange in steel clad with a copper alloy jointing face Type 07, 37 Loose p
31、late flange in steel with a slip-on collar (type 37) in copper alloy, for soft soldering, brazing or welding Type 11 Weld-neck flange in copper alloy for welding Type 12 Hubbed slip- on flange in copper alloy, for soft soldering, brazing or welding Steel component Type 14 Hubbed slip-on flange in co
32、pper alloy supplied with tube stops, for soft soldering, brazing or welding Type 21 Integral flange in copper alloy as part of some other equipment or component Copper alloy component Figure 1 Types of flanges and collarsEN 1759-3:2003/AC:2004 (E) 6 2 Normative references This European Standard inco
33、rporates by dated or undated references, 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 Eu
34、ropean Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies (including amendments). EN 1652, Copper and copper alloys Plate, sheet, strip and circles for general purposes. EN 1982, Copper and copper alloys In
35、gots and castings. EN 10028-2, Flat products made of steels for pressure purposes Part 2: Non-alloy and alloy steels with specified elevated temperature properties. EN 10222-2, Steel forgings for pressure purposes Part 2: Ferritic and martensitic steels with specified elevated temperature properties
36、. EN 12420, Copper and copper alloys Forgings. EN 12449, Copper and copper alloys Seamless round tubes for general purposes. EN ISO 887, Plain washers for metric bolts, screws and nuts for general purposes General plan (ISO 887:2000). EN ISO 4287, Geometrical Product Specification (GPS) Surface text
37、ure: Profile method Terms, definitions and surface texture parameters (ISO 4287:1997). EN ISO 6708:1995, Pipework components Definition and selection of DN (nominal size) (ISO 6708:1995). 3 Terms and definitions For the purposes of this standard the following terms and definitions apply. 3.1 Class a
38、lphanumeric designation used for reference purposes related to a combination of mechanical and dimensional characteristics of a component of a pipework system. It comprises the word Class followed by a dimensionless whole number NOTE 1 The number following the word Class does not represent a measura
39、ble value and should not be used for calculation purposes except where specified in the relevant standard. NOTE 2 The designation Class is not meaningful unless it is related to the relevant component standard number. NOTE 3 It is intended that all components with the same Class and NPS (see below)
40、designations have the same mating dimensions for compatible flange types. 3.2 DN see EN ISO 6708:1995 3.3 NPS alphanumeric designation of size for components of a pipework system, which is used for reference purposes. It comprises, for the purpose of Class designated flanges according to this standa
41、rd, 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 The number following the letters NPS does not represent a measurable value and should not be used for calculation purposes except where
42、specified in the relevant standard. See EN ISO 6708.EN 1759-3:2003/AC:2004 (E) 7 4 Designation 4.1 General The types of flanges and their reference numbers are given in Table 1 and the range of DN applicable to each flange type and to each Class shall be as given in Table 3. NOTE 1 Flanges, which ar
43、e identified and/or marked by NPS additionally or alternatively to DN, are deemed to comply with this standard. NOTE 2 The relationship between DN and NPS is given for reference purposes in Tables 3, 4, 5 and 6. 4.2 Standard designation Flanges and collars in accordance with this standard shall be d
44、esignated by the following: a) Designation, e.g. flange or collar; b) Number of this standard, EN 1759-3; c) Number of flange type in accordance with Figure 1; d) Class designation, Class . (the word Class may be omitted); e) Nominal size, DN . (and/or NPS .); f) Material number or symbol (see Table
45、s 7 and 8) (for type 05C flanges it is necessary to specify both the material of the flange and the material of the cladding). EXAMPLE 1 Designation of a plate flange type 01 in Class 150 and DN 600 (NPS 24) and in material symbol CuAl8Fe3: Flange EN 1759-3/01/Class 150/DN 600/CW303G or Flange EN 17
46、59-3/01/150/NPS 24/CW303G EXAMPLE 2 Designation of a loose flange type 07 in Class 150 and DN 50 (NPS 2) and in material symbol S235JR: Flange EN 1759-3/07/Class 150/DN 50/S235JR or Flange EN 1759-3/07/150/NPS 6/S235JR EXAMPLE 3 Designation of a slip-on collar type 37 in Class 150 and DN 50 (NPS 2)
47、and in material symbol CuZn20Al2As: Collar EN 1759-3/37/Class 150/DN 50/CW702R or Collar EN 1759-3/37/150/NPS 2/CW702R EXAMPLE 4 Designation of a blank flange type 05C with clad jointing face, in Class 300 and DN 150 (NPS 6) and in materials symbols, S235JR (for blank flange) and CuNi30Mn1Fe (for cl
48、adding): Flange EN 1759-3/05C/Class 300/DN 150/S235JR-CW354H or Flange EN 1759-3/05C/300/NPS 6/S235JR-CW354H 4.3 Information to be supplied by the equipment manufacturer For information to be supplied by the equipment manufacturer see annex A.EN 1759-3:2003/AC:2004 (E) 8 5 General requirements 5.1 Materials Flanges and collars shall be manufactured from the materials specified in Tables 7 and 8 except for type 21 flanges where the flange manufacturer may use other materials by agreemen
