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1、- - - - - - - - - - - - - - - - EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 545 September 2010 ICS 23.040.10; 23.040.40 Supersedes EN 545:2006 English Version Ductile iron pipes, fittings, accessories and their joints for water pipelines - Requirements and test methods Tuyaux, raccords et a
2、ccessoires en fonte ductile et leurs assemblages pour canalisations deau - Prescriptions et mthodes dessai Rohre, Formstcke, Zubehrteile aus duktilem Gusseisen und ihre Verbindungen fr Wasserleitungen - Anforderungen und Prfverfahren This European Standard was approved by CEN on 12 August 2010. CEN
3、members are 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 appli
4、cation to the CEN Management Centre 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 CEN Management Centre h
5、as the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
6、Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2010 CEN All rights of exploitation in any form and
7、by any means reserved worldwide for CEN national Members. Ref. No. EN 545:2010: E EN 545:2010 (E) 2 Contents Page Foreword 6 1Scope 7 2Normative references 7 3Terms and definitions .8 4Technical requirements . 12 4.1General . 12 4.2Pressure class . 13 4.3Dimensional requirements . 14 4.4Material cha
8、racteristics 18 4.5Coatings and linings for pipes 19 4.6Coatings for fittings and accessories. 21 4.7Marking of pipes, fittings and accessories 22 4.8Leak tightness . 23 5Performance requirements for joints and pipe saddles . 23 5.1General . 23 5.2Flexible joints 23 5.3Restrained flexible joints . 2
9、5 5.4Flanged joints as cast, screwed, welded and adjustable . 25 5.5Pipe saddles 26 6Test methods . 27 6.1Pipe dimensions . 27 6.2Straightness of pipes . 28 6.3Tensile testing . 28 6.4Brinell hardness 30 6.5Works leak tightness test for pipes and fittings 30 6.6Zinc mass 30 6.7Thickness of paint coa
10、tings 31 6.8Thickness of cement mortar lining . 31 7Performance test methods 32 7.1Compressive strength of the cement mortar lining 32 7.2Leak tightness of flexible joints 32 7.3Leak tightness and mechanical resistance of flanged joints . 35 7.4Leak tightness and mechanical resistance of pipe saddle
11、s 36 8Tables of dimensions . 37 8.1Socket and spigot pipes 37 8.2Flanged pipes 40 8.3Fittings for socketed joints 40 8.4Fittings for flanged joints . 56 9Evaluation of conformity 73 9.1General . 73 9.2Initial performance testing . 73 9.3Factory production control (FPC) . 75 Annex A (normative) Allow
12、able pressures 80 A.1General . 80 A.2Socket and spigot pipes (see 8.1) . 80 A.3Fittings for socketed joints (see 8.3) 80 A.4Flanged pipes (see 8.2) and fittings for flanged joints (see 8.4) 81 A.5Accessories . 81 EN 545:2010 (E) 3 Annex B (informative) Longitudinal bending resistance of pipes . 82 A
13、nnex C (informative) Diametral stiffness of pipes . 83 Annex D (informative) Specific coatings, field of use, characteristics of soils 86 D.1Alternative coatings 86 D.2Field of use in relation to the characteristics of soils . 87 Annex E (informative) Field of use, water characteristics 89 Annex F (
14、informative) Calculation method of buried pipelines, heights of cover 90 F.1Calculation method . 90 F.2Heights of cover 92 Bibliography 93 Tables Table 1 Limit deviations on thickness of fittings . 14 Table 2 Limit deviation on internal diameter. 15 Table 3 Maximum DN for limit deviations on interna
15、l diameter for pressure classes 15 Table 4 Standardized lengths of socket and spigot pipes 15 Table 5 Standardized lengths of flange pipes. 16 Table 6 Permissible deviation on lengths of fittings 16 Table 7 Limit deviations on length . 18 Table 8 Tensile properties. 18 Table 9 Thickness of cement mo
16、rtar lining . 21 Table 10 DN groupings for performance tests 23 Table 11 Performance tests for joints 24 Table 12 Bending moments for flange joint performance tests 26 Table 13 Performance tests for pipe saddles . 27 Table 14 Dimensions of test bar . 29 Table 15 Works test pressure for pipes not cen
17、trifugally cast, fittings and accessories 30 Table 16 Dimensions of pipes of preferred pressure classes. 38 Table 17 Dimensions of pipes 39 Table 18 Dimensions of flanged sockets 41 Table 19 Dimensions of flanged spigots and collars . 43 Table 20 Dimensions of double socket 90 and 45 bends . 45 Tabl
18、e 21 Dimensions of double socket 22,5 and 11,25 bends . 47 Table 22 Dimensions of all socket tees . 49 Table 23 Dimensions of double socket tees with flanged branch, DN 40 to 250 51 Table 24 Dimensions of double socket tees with flanged branch, DN 300 to DN 700 52 Table 25 Dimensions of double socke
19、t tees with flanged branch, DN 800 to DN 2 000 . 53 Table 26 Dimensions of double socket tapers . 55 Table 27 Dimensions of double flanged 90 and 90 duckfoot bends 57 EN 545:2010 (E) 4 Table 28 Dimensions of double flanged 45 bends . 59 Table 29 Dimensions of double flanged 22,5 and 11,25 bends . 61
20、 Table 30 Dimensions of all flanged tees, DN 40 to DN 250 . 62 Table 31 Dimensions of all flanged tees, DN 300 to DN 700 . 63 Table 32 Dimensions of all flanged tees, DN 800 to DN 2000 . 64 Table 33 Dimensions of double flanged tapers . 66 Table 34 Dimensions of PN 10 and PN 16 blank flanges 68 Tabl
21、e 35 Dimensions of PN 25 and PN 40 blank flanges 70 Table 36 Dimensions of PN 10 and PN 16 reducing flanges 71 Table 37 Dimensions of PN 25 and PN 40 reducing flanges 73 Table 38 Number of test samples for initial performance testing 75 Table 39 Minimum frequency of product testing as part of FPC .
22、77 Table 40 Maximum batch sizes for tensile testing . 78 Table A.1 Fittings pressure class 81 Table A.2 Flanged pipe and fittings pressures 81 Table B.1 Longitudinal bending moment resistance of pipes 82 Table C.1 Diametral stiffness of pipes of preferred pressure classes 85 Table E.1 Field of use f
23、or cement mortar linings . 89 Table F.1 Heights of cover for pipes of preferred pressure classes . 92 Figures Figure 1 Leak tightness test of joints (internal pressure) . 33 Figure 2 Leak tightness test of joints (external pressure) 34 Figure 3 Strength and leak tightness test for flanged joints 35
24、Figure 4 Leak tightness test for pipe saddles 36 Figure 5 Socket and spigot pipes 37 Figure 6 Flanged sockets . 40 Figure 7 Flanged spigots 42 Figure 8 Collars . 42 Figure 9 Double socket 90 (1/4) bends 44 Figure 10 Double socket 45 (1/8) bends 44 Figure 11 Double socket 2230 (1/16) bends . 46 Figur
25、e 12 Double socket 1115 (1/32) bends . 46 Figure 13 All socket tees 48 Figure 14 Double socket tees with flanged branch . 50 Figure 15 Double socket tapers . 54 Figure 16 Double flanged 90 (1/4) bends . 56 Figure 17 Double flanged duckfoot 90 (1/4) bends 57 EN 545:2010 (E) 5 Figure 18 Double flanged
26、 45 (1/8) bends . 58 Figure 19 Double flanged 2230 (1/16) bends 60 Figure 20 Double flanged 1115 (1/32) bends 60 Figure 21 All flanged tees . 61 Figure 22 Double flanged tapers 65 Figure 23 Blank flanges PN 10 . 67 Figure 24 Blank flanges PN 16 . 67 Figure 25 Blank flanges PN 25 . 69 Figure 26 Blank
27、 flanges PN 40 . 69 Figure 27 Reducing flanges PN 10 . 70 Figure 28 Reducing flanges PN 16 . 71 Figure 29 Reducing flanges PN 25 . 72 Figure 30 Reducing flanges PN 40 . 72 EN 545:2010 (E) 6 Foreword This document (EN 545:2010) has been prepared by Technical Committee CEN/TC 203 “Cast iron pipes, fit
28、tings and their joints”, the secretariat of which is held by AFNOR. 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 March 2011, and conflicting national standards shall be withdrawn at the latest
29、by March 2011. 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 shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 545:2006. In this standard Annex A is norma
30、tive and Annexes B, C, D, E and F are informative. This standard is in conformity with the general requirements already established by CEN/TC 164 in the field of water supply. In respect of potential adverse effects on the quality of water intended for human consumption, caused by the products cover
31、ed by this standard: this standard provides no information as to whether the products may be used without restriction in any of the member states of the EU or EFTA; it should be noted that, while awaiting the adoption of verifiable European criteria, existing national regulations concerning the use
32、and/or the characteristics of these products remain in force. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estoni
33、a, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. EN 545:2010 (E) 7 1 Scope This European Standard specifies the requireme
34、nts and associated test methods applicable to ductile iron pipes, fittings, accessories and their joints for the construction of pipelines outside buildings: to convey different types of water (e.g. raw water, treated water, re-used water) for all types of applications (e.g. water intended for human
35、 consumption, for fire protection, for snow making, for irrigation, for hydro-electricity etc.); with or without pressure; to be installed below or above ground. This European Standard is applicable to pipes, fittings and accessories which are: manufactured with socketed, flanged or spigot ends; sup
36、plied externally and internally coated; suitable for fluid temperatures between 0 C and 50 C, excluding frost; not intended for use in areas subject to reaction to fire regulations. This does not preclude special arrangements for the products to be used at higher temperatures. This European Standard
37、 covers pipes and fittings cast by any type of foundry process or manufactured by fabrication of cast components, as well as corresponding joints and accessories, in a size range extending from DN 40 to DN 2 000, inclusive. This European Standard specifies requirements for materials, dimensions and
38、tolerances, mechanical properties and standard coatings of ductile iron pipes and fittings. It also gives performance requirements for all components including joints. Joint design and gasket shapes are outside the scope of this standard. In addition, reference is made to the minimum performance req
39、uirements of couplings, flange adaptors and saddles manufactured for use with ductile iron pipes and fittings. NOTE In this European Standard, all pressures are relative pressures, expressed in bars (100 kPa = 1 bar). 2 Normative references The following referenced documents are indispensable for th
40、e application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 196-1, Methods of testing cement Part 1: Determination of strength EN 197-1, Cement Part 1: Composition,
41、specifications and conformity criteria for common cements EN 681-1, Elastomeric seals Material requirements for pipe joint seals used in water and drainage applications Part 1: Vulcanized rubber EN 805:2000, Water supply Requirements for systems and components outside buildings EN 1092-2, Flanges an
42、d their joints Circular flanges for pipes, valves, fittings and accessories, PN designated Part 2: Cast iron flanges EN 545:2010 (E) 8 EN 1333:2006, Flanges and their joints Pipework components Definition and selection of PN EN 14901, Ductile iron pipes, fittings and accessories Epoxy coating (heavy
43、 duty) of ductile iron fittings and accessories Requirements and test methods EN ISO 4016, Hexagon head bolts Product grade C (ISO 4016:1999) EN ISO 4034, Hexagon nuts Product grade C (ISO 4034:1999) EN ISO 6506-1, Metallic materials Brinell hardness test Part 1: Test method (ISO 6506-1:2005) EN ISO
44、 6892-1, Metallic materials Tensile testing Part 1: Method of test at room temperature (ISO 6892-1:2009) EN ISO 7091, Plain washers Normal series Product grade C (ISO 7091:2000) EN ISO 9001:2000, Quality management systems Requirements (ISO 9001:2000) 3 Terms and definitions For the purposes of this
45、 document, the following terms and definitions apply. 3.1 ductile iron cast iron used for pipes, fittings and accessories in which graphite is present substantially in spheroidal form 3.2 pipe casting of uniform bore, straight in axis, having socket, spigot or flanged ends, except for flanged socket
46、 pieces, flanged spigot pieces and collars which are classified as fittings 3.3 fitting casting other than a pipe which allows pipeline deviation, change of direction or bore NOTE In addition flanged socket pieces, flanged spigot pieces and collars are also classified as fittings. 3.4 accessory any
47、casting/fabrication other than a pipe or fitting which is intended for use in a ductile iron pipeline including: Glands and bolts for mechanical flexible joints (see 3.14); Glands, bolts and locking rings for restrained flexible joints (see 3.15); Pipe saddles for service pipe connections; Adjustabl
48、e flanges and flanges to be welded or screwed; Flange adaptors for use with ductile iron pipes and fittings (see 4.1.3.2); Couplings for use with ductile iron pipes and fittings (see 4.1.3.2) NOTE 1 Valves of all types are not covered by the term accessory. NOTE 2 Wide tolerance flange adaptors and couplings are covered by EN 14525. EN 545:2010 (E) 9 3.5 component any product defined in 3.2 to 3.4 3.6 flange end of a pipe, fitting or accessory extending p