DIN EN 1092-1-2013 Flanges and their joints - Circular flanges for pipes valves fittings and accessories PN designated - Part 1 Steel flanges German version EN 1092-1 2007+A1 2013《.pdf

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1、April 2013 Translation by DIN-Sprachendienst.English price group 33No 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

2、23.040.60!$H“1999337www.din.deDDIN EN 1092-1Flanges and their joints Circular flanges for pipes, valves, fittings and accessories,PN designated Part 1: Steel flanges;English version EN 1092-1:2007+A1:2013,English translation of DIN EN 1092-1:2013-04Flansche und ihre Verbindungen Runde Flansche fr Ro

3、hre, Armaturen, Formstcke und Zubehrteile, nachPN bezeichnet Teil 1: Stahlflansche;Englische Fassung EN 1092-1:2007+A1:2013,Englische bersetzung von DIN EN 1092-1:2013-04Brides et leurs assemblages Brides circulaires pour tubes, appareils de robinetterie, raccords et accessoires,dsignes PN Partie 1:

4、 Brides en acier;Version anglaise EN 1092-1:2007+A1:2013,Traduction anglaise de DIN EN 1092-1:2013-04SupersedesDIN EN 1092-1:2008-09www.beuth.deDocument comprises 132 pagesIn case of doubt, the German-language original shall be considered authoritative.03.13 DIN EN 1092-1:2013-04 2 A comma is used a

5、s the decimal marker. National foreword This document (EN 1092-1:2007+A1:2013) has been prepared by Technical Committee CEN/TC 74 “Flanges and their joints” (Secretariat: DIN, Germany). The responsible German body involved in its preparation was the Normenausschuss Rohrleitungen und Dampfkesselanlag

6、en (Piping and Boiler Plant Standards Committee), Working Committee NA 082-00-16 AA Flansche und ihre Verbindungen. The DIN Standards corresponding to the International Standards referred to in Clause 2 of this standard are as follows: ISO 7-1 DIN EN 10226-1 ISO 7-2 DIN EN 10226-2 ISO 2768-1 DIN ISO

7、 2768-1 Amendments This standard differs from DIN EN 1092-1:2008-09 as follows: a) Amendment 1:2013 has been incorporated; b) the standard has been editorially revised. DIN EN 1092-1:2013-04 3 Previous editions DIN HNA FI 31: 1923-08 DIN 2501: 1926-07, 1927-10, 1928-01, 1942-11, 1949-06 DIN 2543: 19

8、26-07, 1943-05, 1949-12, 1968-01, 1977-09 DIN 2544: 1926-07, 1943-05, 1949x-12, 1968-01, 1977-09 DIN 2545: 1926-07, 1943-05, 1949-12, 1968-01, 1977-09 DIN 2566: 1926-07, 1936-08, 1943-11, 1949-06, 1962-01, 1975-03 DIN 2641: 1926-07, 1928-10, 1949-06, 1962-01, 1975-03 DIN 2642: 1926-07, 1928-10, 1941

9、-04, 1949-06, 1962-01, 1969-05, 1970-08, 1975-03 DIN 2512: 1927-01, 1936-08, 1943x-11, 1966-05, 1975-03, 1999-08 DIN 2513: 1927-01, 1936-08, 1949-06, 1966-05 DIN 2514: 1927-01, 1929-07, 1949-06, 1967-06, 1975-03 DIN 2652: 1927-10, 1949-06, 1962-01 DIN 2653: 1927-10, 1931-04, 1940-02, 1949-06, 1962-0

10、1 DIN 2630: 1928-04, 1940-10, 1943-11, 1949-05, 1954-12, 1962-08, 1966-08, 1975-03 DIN 2631: 1928-04, 1936-10, 1943-11, 1949-05, 1954-12, 1962-08, 1966-08, 1975-03 DIN 2546: 1928-07, 1947-06, 1949x-12, 1969-04, 1969-11 DIN 2547: 1928-07, 1947-06, 1949-12, 1969-04, 1977-09 DIN 2632: 1928-10, 1931-04,

11、 1936-08, 1943-11, 1949-05, 1954-12, 1962x-08, 1966-08, 1975-03 DIN 2500: 1928-10, 1949x-09, 1966-08 DIN 2655: 1928-10, 1949-06, 1962-01, 1975-03 DIN 2656: 1928-10, 1949-06, 1962-01, 1975-03 DIN 2673: 1928-10, 1931-04, 1940-09, 1949-06, 1962-08 DIN 3156: 1935x-11 DIN 2633: 1936-08, 1943-11, 1949-05,

12、 1962-08, 1966-08, 1975-03 DIN 2634: 1936-08, 1943-11, 1949-05, 1962-08, 1966-08, 1975-03 DIN 2635: 1936-08, 1943-11, 1949-05, 1962x-08, 1966-08, 1975-03 DIN 2636: 1936-08, 1947-08, 1949x-12, 1962-08, 1962-12, 1975-03 DIN 2637: 1936-08, 1947-08, 1949-12, 1962-08, 1962-12, 1975-03 DIN 2548: 1940-09,

13、1944-09, 1949-12, 1969-04 DIN 2549: 1940-09, 1944-09, 1949x-12, 1969-04 DIN 2550: 1940-09, 1944-09, 1949-12, 1969-04 DIN 2551: 1940-09, 1949-12, 1969-04 DIN 2573: 1940-10, 1949-05, 1962-01, 1975-03 DIN 2638: 1941-03, 1944-11, 1949-12, 1962-08, 1975-03 DIN 2628: 1941-07, 1944-11, 1949-12, 1962-08, 19

14、75-03 DIN 2629: 1941-07, 1944-11, 1949-12, 1962-08, 1975-03 DIN 2519: 1947x 01, 1964-01, 1966-08 DIN 86031: 1952-04 DIN 86043: 1952-04 DIN 2527: 1963-09, 1969-03, 1971-11, 1972-04 DIN 2526: 1963-11, 1975-03 DIN 2576: 1963x-12, 1975-03 DIN 2627: 1969-04, 1970-08, 1975-03 DIN 2501-1: 1970-11, 1972-02

15、DIN 2528: 1991-06 DIN EN 1092-1: 2002-06, 2007-11, 2008-09 DIN EN 1092-1:2013-04 4 National Annex NA (informative) Information and national supplement to DIN EN 1092-1 NA.1 Correspondence between flanges as in previous DIN Standards and those as in DIN EN 1092-1 Table NA.1 shows the correspondence b

16、etween the flanges specified in DIN EN 1092-1 with those specified in DIN Standards which have been replaced, either fully or partially, by DIN EN 1092-1. Table NA.1 Correspondence between DIN and DIN EN flanges DINa Flange type as in DIN EN Subject(s) covered Nominal size as in previous DIN Nominal

17、 size as in DIN EN 1092-1 2512 Tongues and grooves for flanges, PN 160 Gaskets PN 10 up to PN 160 PN 40 only drilled. cChip machining spot facing for PN 63 (see 5.8.2). 5.8.2 Spot facing or back facing of flanges Any spot facing or back facing shall not reduce the flange thickness to less than the f

18、lange thickness specified. When spot facing is used, the diameter shall be large enough to accommodate the outside diameter of the equiva-lent normal series of washers in accordance with EN ISO 887 for the bolt size being fitted. The bearing surfaces for the bolting shall be parallel to the flange f

19、ace within the limits given in Table 22. When a flange is back faced a minimum fillet radius, R2(see Figure 17) in accordance with Table 23 shall be maintained. 5.9 Tolerances Tolerances on dimensions of flanges and collars shall be as given in Table 22. General tolerances for dimensions without giv

20、en tolerance: According to ISO 2768-1 c. 5.10 Marking 5.10.1 General marking requirements All flanges, lapped ends and collars, other than type 21 flanges, should be marked as follows: a) flange/collar manufacturers name or trade mark, e.g. XXX; b) number of this European Standard, i.e. EN 1092-1; c

21、) flange/collar type number; d) DN, e.g. DN 150; DIN EN 1092-1:2013-04 EN 1092-1:2007+A1:2013 (E) 16 e) PN designation, e.g. PN 40 (marking according to synoptic Table 7, other marking with lower PN number, !by identical dimensions“ only, may be specified); f) wall thickness (S), if not according to

22、 this European Standard; g) !deleted text“ either the name or the number or the grade of the material, e.g. P245GH; h) heat number of melt and/or suitable identification, such as code number, for the traceability e.g. A2345, when test certification is required. EXAMPLE XXX/EN 1092-1/11/DN 150/PN 40/

23、P265GH/A2345 i) additional marking (M) for flanges according to Annex I: EXAMPLE XXX/EN 1092-1/34M/. If a part is too small to enable all the markings required then the minimum marking required shall be: !“ flange/collar manufacturers name or trade mark; !“ letters “EN”; !“ PN designation e.g. PN 40

24、; !“ either the name or the number or the grade of the material; ! heat number of melt and/or suitable identification, such as code number, for the traceability.“ 5.10.2 Stamping Marking has to be visible and durable. Where hard stampings are used, the marking shall be positioned on the outer rim of

25、 the parts. NOTE It should be ensured that hard stamping markings are not liable to cause cracks in the flange material. 5.10.3 Declaration of compliance The marking EN 1092-1, together with the flange manufacturers name or trademark on or in relation to a product, represents the flange manufacturer

26、s declaration of compliance to this European Standard, i.e. a claim by or on behalf of the flange manufacturer that the product meets the requirements of this European Standard. 5.11 Welding When producing flanges or collars by fusion welding or flanges or collars formed by bending from sections, ba

27、r steel or flat products and flash-butt welded the following criteria are valid: welding process/procedures shall be qualified and certified in accordance with EN ISO 15614-1 and EN ISO 15614-13; NOTE Existing valid welding procedures for arc welding of steels i.e. in accordance with EN 288-3 may be

28、 used (see intro-duction to EN ISO 15614-1:2004). welders and/or welding operators shall be qualified in accordance with EN 287-1 and/or EN 1418. All welds shall have full penetration. Local repair of weld seam with filler metal is permitted, provided that the repair procedure/welders are qualified

29、in accordance with the relevant part of the above mentioned standards. If heat treatment is required, the repair welding shall be carried out prior to that. DIN EN 1092-1:2013-04 EN 1092-1:2007+A1:2013 (E) 17 5.12 Inspection and testing 5.12.1 Inspection and testing of fusion welded joints a) Welded

30、 joints shall be visually examined in accordance with !EN ISO 17637“ before any other NDT is performed. b) The area to be examined shall include the weld metal and the heat affected zones. c) The required surface examination shall be performed on all the surfaces. d) Any type of NDT shall be perform

31、ed after any forming or heat treatment operation. Where a material is not sensitive to PWHT cracking (e.g. material groups 1.1 and 8.1 (see CEN ISO/TR 15608), NDT may be per-formed before PWHT. e) In case of austenitic base or filler material, the method for surface testing shall be PT. f) Welded pi

32、pe as base material shall conform to the relevant product (pipe) standard (see Table 9). g) All other longitudinal welds of necks shall have 100 % volumetric (RT/UT) testing. h) For type 35 only: Every 10thradial weld of rings shall have 100 % volumetric testing. Every 10thring weld shall have surfa

33、ce crack detection (MT or PT) except in material groups 1.1, 1.2 or 8.1. i) For type 35 only: Welding of neck to ring, every 10thflange shall have surface crack detection of welds (MT or PT). !Table 4 NDT methods, techniques, characterisation and acceptance criteria for fusion welded flanges or coll

34、ars NDT Methods (abbreviations) Techniques Acceptance Criteria Visual inspection (VT) EN ISO 17637 EN ISO 5817:2007, surface imperfections, Acceptance level B Radiography (RT) EN 1435:1997, class B EN 12517-1:2006, Acceptance level 2 and Table 6.6.4-1 Ultrasonic Testing(UT) EN ISO 17640:2010, min. c

35、lass B a EN ISO 11666:2010, Acceptance level 2 + no planar imperfections accepted Penetrant Testing (PT) EN 571-1:1997 + test para-meter to EN ISO 23277:2009 Table A.1 Acceptance level 1 EN ISO 23277:2009, Acceptance level 1 Magnetic Particle Testing (MT) EN ISO 17638:2009 + test pa-rameter to EN IS

36、O 23278:2009, Table A.1 Acceptance level 1 EN ISO 23278:2009, Acceptance level 1 aThickness t 100 mm class C is required. “ NDT operators (Level 1) and supervisor (Level 2) shall be qualified and certified in accordance with !EN ISO 9712“. 5.12.2 Inspection and testing of !bent“ and electric welded

37、flanges or collars from formed bars, sectional steel or band material a) Welded joints shall be visually examined in accordance with !EN ISO 17637“ before any other NDT is performed. Acceptance criteria in accordance with EN ISO 5817 surface imperfections level C. b) The area to be examined shall in

38、clude the weld metal and the heat affected zones. c) All base material for these flanges, such as plates or flat products shall be inspected ultrasonically according to EN 10160. Scope of test according to EN 10160:199, Table 3, acceptance criteria Class S2and EN 10160:1999, Table 5 Class E3. DIN EN

39、 1092-1:2013-04 EN 1092-1:2007+A1:2013 (E) 18 d) Flanges made of steels in Material Groups 1E0, 1E1, 2E0 and 3E1 !shall be subjected“ by the flange manufacturer to ultrasonic testing or to radiographic testing with reference to Table 5 to the extend defined in Table 5. As a rule, flanges that are pr

40、oduced by continuous welding with the same machine setting are grouped together to form a test batch. e) Finished flanges of all other material groups !shall be subjected“ by the flange manufacturer to ultrasonic inspection or to radiographic inspection in the weld zone according to Table 5 on each

41、flange. f) Flanges with unit weights 300 kg shall be inspected ultrasonically or radiographically according to Table 5 in all material groups. g) All welds shall be tested by the flange manufacturer for the presence of surface cracks with a suitable method as Penetrant Testing for austenitic base or

42、 filler material and Magnetic Particle Testing for Ferritic material according to Table 5.The following materials constitute exceptions: P 235 GH, P 265 GH and P 250 GH. h) The non-destructive testing shall be carried out after completion of possible post-weld heat treatment (PWHT). Where a material

43、 is not sensitive to PWHT cracking e.g. material groups 1.1 and 8.1 (see CEN ISO/TR 15608), NDT may be performed before PWHT. Table 5 Scope of non-destructive testing for flanges or collars formed by bending and electric welded formed bars, sectional steel or band material Number of flanges per test

44、 unit Scope of non-destructive testing Minimum of: 1 to 20 100 % 20 to 50 50 % 20 flanges 50 to 200 25 % 25 flanges 200 to 1 000 15 % 50 flanges 1 000 10 % 150 flanges 5.12.3 Inspection and testing of formed parts manufactured from base material other than forgings 5.12.3.1 Non-destructive testing T

45、he testing of formed parts shall include on each component or batch of identical components (dependent on the material and size of flange), if appropriate: wall thickness measurements; dimensional checks hardness tests (e.g. carbon and low alloy steels); ultrasonic testing for internal imperfections

46、 in longitudinal and transversal direction (e.g. for thickness above 8 mm); examination for surface or near surface imperfections (MT or PT). Material, heat treatment conditions, heat treatment lot, degree of deformation shall be considered in the definition of the batch (see e.g. EN 10253 standards

47、). 5.12.3.2 Destructive testing for heat treated or hot formed components Testing shall be performed to verify the heat treatment of the formed parts, and shall include the tests required by the base material specification, e.g.: tensile test; DIN EN 1092-1:2013-04 EN 1092-1:2007+A1:2013 (E) 19 notc

48、h impact test; micrographs (e.g. 9 % or 12 % Cr steels); One set of test per cast, wall thickness range and heat treatment lot shall be performed for flanges and collars with PN DN 1 000 bar and DN 25. The tests shall be performed on test pieces from the component itself, or from test pieces placed together with the components in the heat treatment furnaces. The test results shall fulfil the me-chanical properties of the material standard. 5.12.4 Inspection and testing of ot