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1、BRITISH STANDARD BS EN 545:1995 Ductile iron pipes, fittings, accessories and their joints for water pipelines Requirements and test methods The European Standard EN 545:1994 has the status of a British Standard UDC 621.643.2-034.13:621.643.06-034.13:628.1:620.1 Licensed Copy: sheffieldun sheffieldu
2、n, na, Mon Nov 06 06:40:42 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 545:1995 This British Standard, having been prepared under the direction of the Engineering Sector Board (E/-), was published under the authority of the Standards Board and comes into effect on 15 April 1995 BSI 11-1998 The
3、following BSI references relate to the work on this standard: Committee reference PSE/10 Draft for comment 91/81595 DC ISBN 0 580 22759 6 Cooperating organizations The European Committee for Standardization (CEN), under whose supervision this European Standard was prepared, comprises the national st
4、andards organizations of the following countries: AustriaOesterreichisches Normungsinstitut BelgiumInstitut belge de normalisation DenmarkDansk Standard FinlandSuomen Standardisoimisliito, r.y. FranceAssociation franaise de normalisation GermanyDeutsches Institut fr Normung e.V. GreeceHellenic Organ
5、ization for Standardization IcelandTechnological Institute of Iceland IrelandNational Standards Authority of Ireland ItalyEnte Nazionale Italiano di Unificazione LuxembourgInspection du Travail et des Mines NetherlandsNederlands Normalisatie-instituut NorwayNorges Standardiseringsforbund PortugalIns
6、tituto Portugus da Qualidade Spain Asociacin Espaola de Normalizacin y Certificacin SwedenStandardiseringskommissionen i Sverige SwitzerlandAssociation suisse de normalisation United KingdomBritish Standards Institution Amendments issued since publication Amd. No.DateComments Licensed Copy: sheffiel
7、dun sheffieldun, na, Mon Nov 06 06:40:42 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 545:1995 BSI 11-1998i Contents Page Cooperating organizationsInside front cover National forewordii Foreword2 Text of EN 5455 National annex NA (informative) Additional information54 National annex NB (informat
8、ive) Committees responsibleInside back cover National annex NC (informative) Cross-referencesInside back cover Table A.1 Cement mortar lining thicknesses for ductile iron pipes and fittings for UK water supply applications49 Table A.2 Minimum bore clearances of ductile iron pipe lined in accordance
9、with Table A.149 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 06 06:40:42 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 545:1995 ii BSI 11-1998 National foreword This British Standard has been prepared under the direction of the Piping Systems Components Standards Policy Committee and is t
10、he English language version of EN 545:1994 Ductile iron pipes, fittings, accessories and their joints for water pipelines Requirements and test methods, published by the European Committee for Standardization (CEN). EN 545 was produced as a result of international discussion in which the UK took an
11、active part. This British Standard is one of the three new application standards for ductile iron pipelines which have been developed by CEN, the other standards being BS EN 598 (sewerage application) and BS EN 969 (gas supply). This standard replaces BS 4772 in respect of potable water applications
12、 and with the publication of all three application standards as British Standards, BS 4772 will be withdrawn. National annex NB gives the constitution of the committee responsible for UK participation in the preparation of this standard. A British Standard does not purport to include all the necessa
13、ry provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, the EN t
14、itle page, pages 2 to 58, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 06 06:40:42 GMT+
15、00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 545 November 1994 ICS 23.040.10; 23.040.40 Descriptors: Piping, water pipelines, cast iron products, spheroidal-graphite cast-iron, pipes: tubes, pipe fittings, accessories, definitions, dimensions, coatings,
16、 mechanical properties, test, marking, tables (data) English version Ductile iron pipes, fittings, accessories and their joints for water pipelines Requirements and test methods Tuyaux, raccords et accessoires en fonte ductile et leurs assemblages pour canalisations deau Prescriptions et mthodes des
17、sai Rohre, Formstcke, Zubehrteile aus duktilem Gueisen und ihre Verbindungen fr Wasserleitungen Anforderungen und Prfverfahren This European Standard was approved by CEN on 1994-11-08. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving
18、 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 in three official version
19、s (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 of Austria, Belgium, Den
20、mark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat: rue de Stassart 36,
21、 B-1050 Brussels 1994 Copyright reserved to CEN members Ref. No. EN 545:1994 E Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 06 06:40:42 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 545:1994 BSI 11-1998 2 Foreword This European Standard was prepared by AHG1, Water pipelines under pressure, of
22、 CEN TC 203, Iron pipes, fittings, accessories and their joints, the Secretariat of which is held by the French Standardization Association (AFNOR). It is one of a series of standards for cast iron products for pipelines for various applications. This European Standard deals with the subjects covere
23、d by the International Standards ISO 2531, ISO 4179 and ISO 8179. The major differences are the presentation in one single standard and the addition of product performance specifications. This European Standard shall be given the status of a national standard, either by publication of an identical t
24、ext or by endorsement, at the latest by May 1995, and conflicting national standards shall be withdrawn at the latest by May 1995. According to the CEN/CENELEC Internal Regulations, the following countries are bound to implement this European Standard: Austria, Belgium, Denmark, Finland, France, Ger
25、many, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland, United Kingdom. Contents Page Foreword2 Introduction5 1Scope5 2Normative references5 3Definitions5 4Technical requirements7 4.1General7 4.1.1Ductile iron pipes and fittings7 4.1.2Surface con
26、dition and repairs7 4.1.3Types of joints and interconnection7 4.1.4Materials in contact with potable water8 4.2Dimensional requirements8 4.2.1Wall thickness8 4.2.2Diameter8 4.2.3Length9 4.2.4Straightness of pipes10 4.3Material characteristics10 4.3.1Tensile properties10 4.3.2Hardness10 4.4Coatings a
27、nd linings for pipes10 Page 4.4.1General10 4.4.2External coating of zinc with finishing layer11 4.4.3Internal lining of cement mortar12 4.5Coatings for fittings and accessories12 4.5.1General12 4.5.2Paint coatings13 4.6Marking of pipes and fittings13 4.7Leaktightness13 4.7.1Pipes and fittings13 4.7.
28、2Joints13 5Performance requirements for joints13 5.1General13 5.2Flexible joints14 5.2.1General14 5.2.2Test conditions14 5.2.3Test parameters14 5.3Restrained flexible joints14 5.4Pipes with screwed-on or welded-on flanges15 6Test methods15 6.1Dimensions15 6.1.1Wall thickness15 6.1.2External diameter
29、15 6.1.3Internal diameter15 6.1.4Length16 6.2Straightness of pipes16 6.3Tensile testing16 6.3.1Samples16 6.3.2Preparation of test bar16 6.3.3Apparatus and test method16 6.3.4Test results16 6.3.5Test frequency17 6.4Brinell hardness17 6.5Works leaktightness test for pipes and fittings17 6.5.1General17
30、 6.5.2Centrifugally cast pipes18 6.5.3Pipes not centrifugally cast and fittings 18 6.6Zinc coating mass18 6.7Thickness of paint coatings18 6.8Compressive strength of the cement mortar lining19 6.9Thickness of cement mortar lining19 7Type tests19 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 06
31、 06:40:42 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 545:1994 BSI 11-19983 Page 7.1Leaktightness of joints to positive internal pressure19 7.2Leaktightness of joints to negative internal pressure19 7.3Leaktightness of joints to positive external pressure19 7.4Leaktightness of joints to dynamic in
32、ternal pressure20 7.5Leaktightness and mechanical resistance of screwed-on and welded-on flanges21 8Quality assurance21 8.1General21 8.2Type tests21 8.3Quality assurance system21 9Tables of dimensions21 9.1Socket and spigot pipes21 9.2Flanged pipes21 9.2.1Centrifugally cast pipes with welded-on flan
33、ges21 9.2.2Centrifugally cast pipes with screwed-on flanges21 9.2.3Pipes with integrally cast flanges22 9.3Fittings for socketed joints23 9.3.1Flanged sockets23 9.3.2Flanged spigots24 9.3.3Collars24 9.3.4Double socket 90 (1/4) bends26 9.3.5Double socket 45 (1/8) bends26 9.3.6Double socket 22 30 (1/1
34、6) bends27 9.3.7Double socket 11 15 (1/32) bends27 9.3.8All-socket tees27 9.3.9Double-socket tees with flanged branch, DN 40 to DN 25030 9.3.10Double-socket tees with flanged branch, DN 300 to DN 70032 9.3.11Double-socket tees with flanged branch, DN 800 to DN 200033 9.3.12Double-socket tapers34 9.4
35、Fittings for flanged joints35 9.4.1Double-flanged 90 (1/4) bends36 9.4.2Double-flanged duckfoot 90 (1/4) bends36 9.4.3Double-flanged 45 (1/8) bends37 9.4.4All-flanged tees, DN 40 to DN 25038 9.4.5All-flanged tees, DN 300 to DN 70040 9.4.6All-flanged tees, DN 800 to DN 200041 Page 9.4.7Double-flanged
36、 tapers42 9.4.8Blank flanges PN 1044 9.4.9Blank flanges PN 1644 9.4.10Blank flanges PN 2545 9.4.11Blank flanges PN 4045 9.4.12Reducing flanges PN 1046 9.4.13Reducing flanges PN 1646 9.4.14Reducing flanges PN 2547 9.4.15Reducing flanges PN 4047 Annex A (normative) Allowable pressures48 Annex B (norma
37、tive) Longitudinal bending resistance of pipes50 Annex C (normative) Diametral stiffness of pipes50 Annex D (informative) Field of use, characteristics of soils51 Annex E (informative) Field of use, water characteristics51 Annex F (informative) Calculation method of buried pipelines, heights of cove
38、r52 Figure 120 Figure 2 20 Figure 323 Figure 4a23 Figure 4b23 Figure 5 24 Figure 624 Figure 726 Figure 826 Figure 927 Figure 1027 Figure 1127 Figure 1230 Figure 1334 Figure 1436 Figure 1536 Figure 1637 Figure 1738 Figure 1842 Figure 1944 Figure 2044 Figure 2145 Figure 2245 Figure 2346 Figure 2446 Fi
39、gure 2547 Figure 2647 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 06 06:40:42 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 545:1994 BSI 11-1998 4 Page Table 18 Table 29 Table 39 Table 49 Table 510 Table 610 Table 711 Table 812 Table 914 Table 1015 Table 1117 Table 1217 Table 1318 Table 1422
40、 Table 1523 Table 1625 Table 1726 Table 1828 Table 1929 Table 2030 Table 2132 Table 2233 Table 2334 Table 2436 Table 2537 Table 2639 Table 2740 Table 2841 Table 2943 Table 3044 Table 3145 Table 3246 Table 3347 Table A.149 Table A.249 Table B.150 Table C.151 Table E.152 Table F.153 Licensed Copy: she
41、ffieldun sheffieldun, na, Mon Nov 06 06:40:42 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 545:1994 BSI 11-19985 Introduction This standard is in conformity with the general requirements already established by CEN TC 164 in the field of water supply. The product which is in permanent or in temporar
42、y contact with water intended for human consumption, does not adversely affect the quality of the drinking water and does not contravene the EC Directives and EFTA regulations on the quality of drinking water. 1 Scope This European Standard specifies the requirements and associated test methods appl
43、icable to ductile iron pipes, fittings, accessories and their joints for the construction of pipelines: to convey water (e.g. potable water); with or without pressure; to be installed below or above ground. NOTEIn this standard, all pressures are relative pressures, expressed in bars (100 kPa = 1 ba
44、r). This standard specifies requirements for materials, dimensions and tolerances, mechanical properties and standard coatings of ductile iron pipes and fittings. It also gives performance requirements for all components including joints. This standard covers pipes, fittings and accessories cast by
45、any type of foundry process or manufactured by fabrication of cast components, as well as corresponding joints, in a size range extending from DN 40 to DN 2 000, inclusive. This standard applies to pipes, fittings and accessories which are: manufactured with socketed, flanged or spigot ends for join
46、ting by means of various types of gaskets which are not within the scope of this standard; normally delivered externally and internally coated; suitable for fluid temperatures between 0 C and 50 C, excluding frost. 2 Normative references This European Standard incorporates by dated reference provisi
47、ons from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. Subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision.
48、 EN 196-1:1989, Methods of testing cement Determination of strength. ENV 197-1:1992, Cement-composition, specifications and conformity criteria Part 1: Common cements. prEN 805:1992, Water supply requirements for external systems and components. prEN 1092-2:1993, Flanges and their joints Part 2 Cast
49、 iron flanges. EN 10002-1:1990, Metallic materials Tensile testing Part 1: Method of test at ambient temperature. EN 29002:1987, Quality systems Model for quality assurance in production and installation. EN 45012:1989, General criteria for certification bodies operating quality system certification. ISO 2531:1991, Ductile iron pipes, fittings and accessories for pressure pipelines. ISO 4633:1983, Rubber seals Joint rings for water supply, drainage and sewerage pipelines Specification for materials. ISO 6