1、September 2013 Translation by DIN-Sprachendienst.English price group 6No 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).I
2、CS 71.120.10!%+vR“2088347www.din.deDDIN 28030-2Flange joints for process vessels Part 2: Limit deviations for flanges,English translation of DIN 28030-2:2013-09Flanschverbindungen fr Apparate Teil 2: Grenzabmae fr Flansche,Englische bersetzung von DIN 28030-2:2013-09Brides assemblages pour appareils
3、 Partie 2: carts limites pour brides,Traduction anglaise de DIN 28030-2:2013-09SupersedesDIN 28030-2:2003-03www.beuth.deDocument comprises 8 pagesIn case of doubt, the German-language original shall be considered authoritative.03.14 DIN 28030-2:2013-09 2 A comma is used as the decimal marker. Conten
4、ts Page Foreword. 3 1 Scope . 4 2 Normative references . 4 3 Dimensions . 5 Bibliography . 8 DIN 28030-2:2013-09 3 Foreword This standard has been prepared by Working Committee NA 012-00-01 Anlagenteile of the Normenaus-schuss Chemischer Apparatebau (FNCA) (Chemical Apparatus Standards Committee) in
5、 DIN. DIN 28030, Flange joints for process vessels consists of: Part 1: Technical delivery conditions Part 2: Limit deviations for flanges Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. DIN and/or DKE shall not be held responsibl
6、e for identifying any or all such patent rights. Amendments This standard differs from DIN 28030-2:2003-03 as follows: a) the title has been changed; b) Figure 1 and Figure 2 have been modified; c) in Table 1 tolerances for Diand f1have been added; d) the standard has been editorially revised. Previ
7、ous editions DIN 28030-2: 1977-09, 1989-02, 2003-03 DIN 28030-2:2013-09 4 1 Scope This standard applies to the following types of flange: weld flanges as in DIN 28031 and DIN 28033; weld-neck flanges as in DIN 28034. It specifies tolerances for flanges in the finished condition, thus ensuring their
8、interchangeability. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indis-pensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document
9、 (including any amendments) applies. DIN 28031, Flange joints for process vessels Weld flanges for unpressurized process vessels DIN 28033, Flange joints for process vessels Weld flanges for pressure vessels DIN 28034, Flange joints for process vessels Weld-neck flanges for pressurized vessels DIN E
10、N 1092-1, Flanges and their joints Circular flanges for pipes, valves, fittings and accessories, PN designated Part 1: Steel flanges DIN ISO 2768-1, General tolerances Tolerances for linear and angular dimensions without individual tolerance indications DIN 28030-2:2013-09 5 3 Dimensions Dimensions
11、in millimetres. General tolerances: ISO 2768 c. Symbols for flange dimensions and facing designations are in accordance with DIN EN 1092-1. aDimension Didepends on the vessel wall thickness. Figure 1 Flange dimensions (notation) DIN 28030-2:2013-09 6 Type B1 Raised face Type C Tongue Type D Groove T
12、ype E Spigot Type F Recess Figure 2 Flange facings, types and dimensions Table 1 Tolerances Dimensions in millimetres Symbol Dimension Nominal size (range) Tolerances A Neck diameter for weld-neck flanges and cylindrical weld flanges 300 up to 1 000 02over 1 000 up to 4 000 03D Flange outside diamet
13、er up to 1 000 42+over 1 000 up to 2 000 62+over 2 000 83+K Bolt circle diameter up to 1 600 1 over 1 600 2 L Bolt hole diameter 27 10+ 27 20+w, x, y, z Inside and outside diameters of tongue and groove or spig-ot/recess up to 2 000 x, z w, y 05,05,00+over 2 000 0110+DIN 28030-2:2013-09 7 Table 1 (c
14、ontinued) Symbol Dimension Nominal size (range) Tolerances d1Facing diameter 300 up to 2 000 03over 2 000 up to 4 000 04B1 Bore diameter 300 up to 1 000 5,10+over 1 000 up to 4 000 5,20+DiInner diameter 300 up to 1 000 05,1over 1 000 up to 4 000 05,2C1aFlange thickness up to 50 20+over 50 30+H2Flang
15、e height up to 60 30+over 60 up to 150 40+over 150 60+s Neck thicknessb up to 6 10+over 6 up to 8 5,10+over 8 20+Mac Centreline distance between two adjacent bolt holes Centre-to-centre distance 1 The sum of consecutive-ly measured centreline distances shall not devi-ate by more than 1,5 mm from the
16、 sum of the nominal dimensions. f3Depth of groove 05,0f3Depth of recess f2Height of tongue 5,00+f2 Height of spigot f1Height of raised face 5,00+c Eccentricity between the bolt circle diameter and the facing diameter for groove, tongue, spigot and recess-type facings 2 a Machining allowances specifi
17、ed by the buyer are minimum limits of size. b These tolerances are to be related to the actual size of the bore. c The symbol Ma is not specified in DIN EN 1092-1. DIN 28030-2:2013-09 8 Bibliography DIN 28005-1, Tolerances for vessels Part 1: Vessels of metallic materials DIN 28006-1, Tolerances for agitator vessels Part 1: Agitator vessels of metallic materials DIN 28007-1, Tolerances for columns Part 1: Columns of metallic materials DIN 28008, Tolerances for tubular heat exchangers
