DIN 2460-2006 Steel water pipes and fittings《钢水管和配件》.pdf

1、June 2006DEUTSCHE NORM English price group 14No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 23.040.10!,wVc“9845164

2、www.din.deDDIN 2460Steel water pipes and fittingsStahlrohre und Formstcke fr Wasserleitungen10224:2005-12 andDIN EN 10311:2005-08supersedesDIN 2460:1992-01www.beuth.deDIN ENTogether with Document comprises 34 pages08.07Translation by DIN-Sprachendienst. In case of doubt, the German-language original

3、 should be consulted as the authoritative text. DIN 2460:2006-06 2 Contents Page Foreword 3 1 Scope 3 2 Normative references 4 3 Terms and definitions . 5 4 General 6 5 Designation and ordering information 7 5.1 Designation 7 5.2 Ordering information. 7 5.3 Additional ordering information. 8 6 Pipes

4、 . 10 7 Fittings 10 8 Dimensions and tolerances 11 8.1 General 11 8.2 Outside diameter and wall thickness. 11 8.3 Lengths . 11 9 Joints for pipes and fittings 11 9.1 General 11 9.2 Pipe ends 11 9.3 Slip welding joints . 11 9.4 Socket joints. 12 9.5 Couplings . 12 9.6 Other pipe joints 12 10 Linings

5、12 10.1 Drinking water pipelines . 12 10.2 Pipelines for other aqueous media 12 11 Coatings 12 11.1 General requirements 12 11.2 Polyethylene coatings. 12 11.3 Polypropylene coatings 12 11.4 Fibre cement mortar coatings (FZM) . 13 11.5 Other coatings 13 12 Inspection certificates. 13 13 Marking . 13

6、 Annex A (normative) Steel grades according to DIN EN Standards 20 Annex B (informative) Static calculation of buried steel pipe 22 Annex C (informative) Calculation of wall thicknesses for internal pressure. 26 Annex D (informative) Support and bedding of steel pipes 29 Annex E (informative) Calcul

7、ation of unsupported spans in steel pipelines 31 Bibliography 34 DIN 2460:2006-06 3 Foreword This standard has been prepared by Technical Committee NARD-4 Stahlrohre of the Normenausschuss Rohrleitungen und Dampfkesselanlagen (NARD) (Piping and Boiler Plant Standards Committee). The general requirem

8、ents for water supply and sewer systems specified by CEN/TC 164 and CEN/TC 165 have been taken into consideration in this revision. The present standard gives requirements for various pipe and fitting designs, depending on the application; these requirements may be included in the technical delivery

9、 conditions. Amendments This standard*)differs from DIN 2460:1992-01 as follows: a) Definitions from European Standards have been included. b) Requirements which are dealt with in DIN EN 10224 and DIN EN 10311 have been deleted. c) Wall thickness calculations as in DIN 2413-1 (withdrawn) have been i

10、ncluded. d) The standard has been editorially revised. Previous editions DIN 2460: 1942-11, 1965-12, 1966-05, 1980-12, 1992-01 DIN 2461: 1942-11, 1965-12, 1966-05 1 Scope This standard gives design requirements for steel pipe and fittings used in water supply and sewer systems under static and opera

11、ting conditions. Although this standard primarily applies to drinking water and sewer systems, it also applies to pipes and fittings used in systems conveying other aqueous media (e.g. raw, process, and cooling waters) as well as seawater, saltwater and brines. It does not, however, apply to domesti

12、c installations. The dimensions of pipes as in this standard are calculated for the allowable operating pressures specified for a given pipeline component as well as the expected external loads. The wall thickness of components made from steels listed in the tables need not be specially calculated i

13、f the intended operating pressure does not exceed the appropriate values specified in these tables, or if the thickness is not less than the specified nominal thickness. In all other cases, an appropriate stress-strain analysis is required. *)This English translation also includes amendments from a

14、Corrigendum to DIN 2460 (DIN 2460 Ber 1) which was published in April 2007. These are shaded grey. DIN 2460:2006-06 4 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated re

15、ferences, the latest edition of the referenced document (including any amendments) applies. DIN 1072, Road and foot bridges Design loads DIN 2605-1, Steel butt-welding pipe fittings Elbows and bends with reduced pressure factor DIN 2605-2, Steel butt-welding pipe fittings Elbows and bends for use at

16、 full service pressure DIN 2609, Steel butt-welding pipe fittings Technical delivery conditions DIN 2615-1, Steel butt-welding pipe fittings Tees with reduced pressure factor DIN 2615-2, Steel butt-welding pipe fittings Tees for use at full service pressure DIN 2616-1, Steel butt-welding pipe fittin

17、gs Eccentric reducers with reduced pressure factor DIN 2616-2, Steel butt-welding pipe fittings Reducers for use at full service pressure DIN 2617, Steel butt-welding pipe fittings Caps Dimensions DIN 2880:1999-01, Application of cement mortar lining for cast iron pipes, steel pipes and fittings DIN

18、 30670, Polyethylene coatings for steel pipes and fittings Requirements and testing DIN 30675-1, External corrosion protection of buried pipes Corrosion protection systems for steel pipes DIN 30678, Polypropylene coatings for steel pipes DIN 50929-3, Probability of corrosion of metallic materials wh

19、en subject to corrosion from the outside Buried and underwater pipelines and structural components DIN EN 10204, Metallic products Types of inspection documents DIN EN 10208-1, Steel pipes for pipelines for combustible fluids Technical delivery conditions Part 1: Pipes of requirement class A DIN EN

20、10208-2, Steel pipes for pipelines for combustible fluids Technical delivery conditions Part 2: Pipes of requirement class B DIN EN 10216 series, Seamless steel tubes for pressure purposes Technical delivery conditions DIN EN 10217 series, Welded steel tubes for pressure purposes Technical delivery

21、conditions DIN EN 10220, Seamless and welded steel tubes General tables of dimensions and masses per unit length DIN EN 10224, Non-alloy steel tubes and fittings for the conveyance of water and other aqueous liquids Technical delivery conditions DIN EN 10253-1, Butt-welding pipe fittings Part 1: Wro

22、ught carbon steel for general use and without specific inspection requirements DIN EN 10298:2005-12, Steel tubes and fittings for onshore and offshore pipelines Internal linings with cement mortar DIN 2460:2006-06 5 DIN EN 10311, Joints for the connection of steel tubes and fittings for the conveyan

23、ce of water and other aqueous liquids DVGW GW 91), Assessment of soils in terms of the corrosion behaviour of buried pipelines and vessels of unalloyed and low-alloy ferrous materials DVGW GW 3401), FCM coating for the mechanical protection of polyolefin-coated steel pipes and fittings Requirements

24、and inspection, field coating and repairs, pipe-laying and corrosion protection 3 Terms and definitions For the purposes of this document, the following terms and definitions apply: 3.1 flange flattened, circular pipe or fitting end perpendicular to the pipe or fitting axis, having a circle of equis

25、paced holes for bolts 3.2 flange connection a joint between two flanged components 3.3 spigot end cylindrical end of a pipe or fitting 3.4 socket flared end of a pipe or fitting into which the spigot end of a pipe or fitting is inserted to form a connection between the two components 3.5 axial force

26、-locking joint a connection which is either welded or is formed using a special device or design feature to prevent the connection from being pulled apart when under load 3.6 random length delivery length where the length and tolerance of individual tubes are not defined; however, a length range may

27、 be agreed DIN EN 10266:2003-12, Term 2.13 3.7 approximate length delivery length, specified by the purchaser, with a unilateral or a bilateral tolerance as specified in the product standard DIN EN 10266:2003-12, Term 2.14 1) Obtainable from Wirtschafts- und Verlagsgesellschaft Gas und Wasser mbH, J

28、osef-Wirmer-Strae 3, 53123 Bonn, Germany. DIN 2460:2006-06 6 3.8 exact length delivery length, specified by the purchaser, with a restricted unilateral tolerance as specified in the product standard DIN EN 10266:2003-12, Term 2.16 3.9 effective length actual length that a tube contributes when corre

29、ctly assembled in a run of piping DIN EN 10224:2003-07, Term 3.2 3.10 nominal size DN an alphanumerical designation of size for components of a pipework system, which is used for reference purposes. It comprises the letters DN followed by a dimensionless whole number which is indirectly related to t

30、he physical size, in millimetres, of the bore or outside diameter of the end connections NOTE 1 The number following the letters DN does not represent a measurable value and should not be used for calculation purposes except where specified in the relevant standard. NOTE 2 In those standards which u

31、se the DN designation system, any relationship between DN and component dimensions should be given, e.g. DN/OD or DN/ID. DIN EN ISO 6708:1995-09, Term DN 3.11 allowable maximum operating pressure PMA maximum pressure occurring from time to time, including surge, that a component is capable of withst

32、anding in service DIN EN 805:2000-03, Term 3.1.1 3.12 allowable operating pressure PFA maximum hydrostatic pressure that a component is capable of withstanding continuously in service NOTE PFA replaces the former designation PN. DIN EN 805:2000-03, Term 3.1.2 3.13 allowable site test pressure PEA ma

33、ximum hydrostatic pressure that a newly installed component is capable of withstanding for a relatively short duration, in order to ensure the integrity and tightness of the pipeline DIN EN 805:2000-03, Term 3.1.3 4 General The delivery conditions of DIN EN 10224 or DIN 2609 apply to pipes and fitti

34、ngs as in this standard. Unless otherwise specified in the order, delivered products are to be of steel grade L235 as in DIN EN 10224. DIN 2460:2006-06 7 Equivalent steel grades in accordance with the technical delivery conditions of the DIN EN 10208, DIN EN 10216 and DIN EN 10217 standard series2)m

35、ay also be agreed (see Table A.1) both for pipes and fittings. For fittings, steel grades as in DIN EN 10253-1 and DIN 2609 may also be agreed. Functional requirements for connections are specified in DIN EN 10311. The functional and hygienic integrity of pipes and fittings for conveying drinking wa

36、ter shall be certified; such pipes and fittings are subject to third party inspection. NOTE In the case of applications covered by the Construction Products Directive, the CE mark may only be applied to pipes supplied in accordance with DIN EN 10224. In addition to the allowable operating pressure (

37、PFA), the design of buried pipes and fittings takes into account loads due to the soil cover (with cover heights of 0,6 m to 6 m) and traffic loads up to SLW 60 according to DIN 1072. In the case of pipelines laid above ground, further loads may have to be considered, such as the pipelines self weig

38、ht, the distance between supports, as well as wind and snow loads. Possible internal pressure drops to an absolute pressure of 0,2 bar shall also be taken into account in pipe designs. In addition, pressure surges not exceeding 1 % of the design service life are taken into account. Further informati

39、on on design calculations and the support and bedding of steel pipes is given in Annexes B to E. 5 Designation and ordering information 5.1 Designation Designation (example) of a pipe of nominal size DN 250: Pipe DIN 2460 DN 250 Designation (example) of a fitting of nominal size DN 250: Fitting DIN

40、2460 DN 250 5.2 Ordering information 5.2.1 General When ordering, a differentiation shall be made between the information required in 5.2.2 for pipes, that required in 5.2.3 for fittings, and the additional information according to 5.2.4. Symbols to be used when ordering are listed in Table 1. 5.2.2

41、 Required ordering information for pipe Inquiries and orders for pipe shall contain the following information: quantity, e.g. number of pipes, total pipe length; designation: “Pipe”; standard number: DIN 2460; 2) Pipes as in DIN EN 10217-1 shall comply with grade TR2 requirements. DIN 2460:2006-06 8

42、 nominal diameter/nominal size DN. EXAMPLE of required ordering information: 3 200 m pipes of nominal size DN 250 in random lengths at the manufacturers discretion, in accordance with DIN EN 10224, black, of steel grade L235 according to DIN EN 10224, with inspection certificate 3.1 according to DIN

43、 EN 10204: 3 200 m pipe DIN 2460 DN 250 5.2.3 Required ordering information for fittings Quantity; designation: “Fitting type”; standard number: DIN 2460; nominal diameter/nominal size DN; wall thickness; fitting design: e.g. 90 (elbow); fitting type: e.g. 3 D; allowable operating pressure; fitting,

44、 e.g. in accordance with DIN EN 10224 or DIN 2605-2. EXAMPLE of required ordering information: 5 fittings of nominal size DN 250 with a wall thickness s = 5 mm (5), design 90 (90), design type 3 D (3) in accordance with DIN EN 10224, for an allowable operating pressure of 50 bar (50), with plain end

45、s, black, of steel grade L235 according to DIN EN 10224, with inspection certificate 3.1 according to DIN EN 10204: 5 fittings DIN 2460 DN 250 5 90 3 50 DIN EN 10224 5.3 Additional ordering information If no additional information is specified in the order, the pipes and fittings shall be supplied i

46、n accordance with the general requirements. Additional ordering information shall be given using the symbols listed in Table 1. DIN 2460:2006-06 9 Table 1 Symbols for additional ordering information Symbol Description S Seamless tubes W Welded pipes Type of tube or pipe St Product analysis is mandat

47、ory Cu Specified copper content Chemical analysis PT Penetrant testing MP Magnetic particle inspection UT Ultrasonic testing ET Eddy current testing RT Through-transmission testing Nondestructive testing of fittings HL. to HL. Random length range FL Approximate length GL Exact length Lengths Table A

48、.2 P Plain end V Bevelled end for butt welding M For slip welding joints SM For socket joints F Flange K Coupling Pipe end design ZM Cement mortar lining Lining PE Polyethylene (PE-n), normal layer thickness Polyethylene (PE-v), increased layer thickness PP Polypropylene FZM Fibre cement mortar-N (F

49、ZM-N), for conventional pipe-laying Fibre cement mortar-S (FZM-S), for trenchless pipe-laying Coating 2.2 Test report 2.2 3.2 Inspection certificate 3.2 Inspection certificate Pipe design seamless; no information: welded; length type and range (cf. 8.3); no information: random length at the manufacturers discretion as in DIN EN 10224; end design (joining technique); no information: plain ends; DIN 2460:2006-06 10 product analysis; maximum copper content; test re