1、September 2013 Translation by DIN-Sprachendienst.English price group 7No 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!%+“2089891www.din.deDDIN 28031Flange joints for process vessels Weld flanges for unpressurized process vessels,English translation of DIN 28031:2013-09Flanschverbindungen fr Apparate Schweiflansche fr drucklose Apparate,Englische bersetzung von DIN 28031:2013-09Brides assemblages pour a
3、ppareils Brides souder pour appareils non pressuriss,Traduction anglaise de DIN 28031:2013-09SupersedesDIN 28031:2003-06www.beuth.deDocument comprises 9 pagesIn case of doubt, the German-language original shall be considered authoritative.03.14 DIN 28031:2013-09 2 A comma is used as the decimal mark
4、er. Contents Page Foreword 3 1 Scope 4 2 Normative references 4 3 Types, dimensions and designation 4 3.1 General 4 3.2 Types . 4 3.3 Designation 7 3.4 Dimensions and masses . 8 4 Marking . 9 DIN 28031:2013-09 3 Foreword This standard has been prepared by Working Committee NA 012-00-01 Anlagenteile
5、of the Normenausschuss Chemischer Apparatebau (FNCA) (Chemical Apparatus Standards Committee) in DIN. 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 responsible for identifying any or all such pat
6、ent rights. Amendments This standard differs from DIN 28031:2003-06 as follows: a) the title of the standard has been changed; b) normative references have been updated; c) Figure 1 Detail X has been made into a separate figure, Figure 2; d) Figure 2 has become Figure 3; e) Figure 2 Detail Y has bee
7、n made into a separate figure, Figure 4; f) weld thicknesses have been modified; g) in Table 1 values for the flange masses have been recalculated; h) the content of 3.5 “Tolerances” is now in Subclause 3.1; i) the content of 4 “Form supplied” is now in Subclause 3.2; j) Clause 4 “Marking” has been
8、added; k) the standard has been editorially revised. Previous editions DIN 28031: 1967-11, 1978-06, 1989-02, 2003-06 DIN 28031:2013-09 4 1 Scope This standard specifies dimensions, types and the designation of weld flanges for unpressurized process vessels. General requirements for flanges are speci
9、fied in DIN 28030-1. Tolerances (limit deviations) for flanges are specified in DIN 28030-2. DIN 28033 covers weld flanges for pressure vessels. DIN 28034 covers weld-neck flanges for pressure vessels. 2 Normative references The following documents, in whole or in part, are normatively referenced in
10、 this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. DIN 28030-1, Flange joints for process vessels Part 1: Technical delivery conditio
11、ns DIN 28030-2, Flange joints for process vessels Part 2: Limit deviations for flanges 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 28105, Chemical equipment Process equipment
12、 and vessels with two domed ends Definitions, nominal capacity, nominal diameters, main dimensions DIN EN 1092-1, Flanges and their joints Circular flanges for pipes, valves, fittings and accessories, PN designated Part 1: Steel flanges DIN EN 10204, Metallic products Types of inspection documents 3
13、 Types, dimensions and designation 3.1 General Flange designs are shown in Figures 1 and 3. Dimensions and masses are specified in Table 1. 3.2 Types Type A, solid machined, as in Figure 1 with a facing finish as in DIN EN 1092-1, type A (flat face). Type B, basic flange for use on shells as in Figu
14、re 3 with weld preparation. NOTE For type B, a facing ring with a surface finish as for a type B1 facing as in DIN EN 1092-1 is used. Other surface finishes shall be agreed between the buyer and the manufacturer. Examples of flange joints are shown in Figures 2 and 4. Otherwise, flanges are to be su
15、pplied machined or unmachined at the manufacturer s discretion. DIN 28031:2013-09 5 Dimensions in millimetres Figure 1 Weld flange, solid, type A (notation) Key s Vessel wall thickness a0,5 s 3 mm bAs a rule, the flange is provided with test or vent bores on the finished vessel. These are to be loca
16、ted between two bolt holes. The bores are to be closed with a threaded plug or closed in a suitable manner at the manufacturers discretion. Flanges as in this standard are supplied by the flange manufacturer without test or vent bores. If the flange manufacturer is to provide test or vent bores, the
17、ir number and location shall be stated by the vessel manufacturer at the time of ordering. Figure 2 Example of a weld flange joint, type A DIN 28031:2013-09 6 Dimensions in millimetres Key s Vessel wall thickness Other dimensions and details as for type A. Figure 3 Weld flange, basic flange, type B
18、Key s Vessel wall thickness a0,5 s 3 mm b In the finished condition cAs a rule, the flange is provided with test or vent bores on the finished vessel. These are to be located between two bolt holes. The bores are to be closed with a threaded plug or closed in a suitable manner at the manufacturers d
19、iscretion. Flanges as in this standard are supplied by the flange manufacturer without test or vent bores. If the flange manufacturer is to provide test or vent bores, their number and location shall be stated by the vessel manufacturer at the time of ordering. Figure 4 Example of a weld flange join
20、t, type B DIN 28031:2013-09 7 3.3 Designation EXAMPLE 1 Designation of a type A weld flange, nominal size 1 200 mm, flange thickness C1= 25 mm, material S235JR (1.0038): Flange DIN 28031 A 1200 25 S235JR EXAMPLE 2 Designation of a type B weld flange, nominal size 1 000 mm, flange thickness C1= 20 mm
21、, wall thickness s = 4, material S235JR (1.0038): Flange DIN 28031 B 1000 20 4 S235JR DIN 28031:2013-09 8 3.4 Dimensions and masses Table 1 Dimensions and masses Dimensions in millimetres Nom- inal size as in DIN 28105 Flange Bolt Massa of flange (7,85 kg/dm3) kg D K d1 B1C1Number Thread size L 300
22、415 375 345 326 20 12 M16 18 8 350 460 420 390 357 16 10 400 510 470 440 408 11 500 600 560 530 510 20 12 600 700 660 630 602 24 15 700 800 760 730 702 28 17 800 900 860 830 802 32 19 900 1 000 960 930 902 36 22 1 000 1 100 1 060 1 030 1 002 40 24 1 100 1 200 1 160 1 130 1 102 44 26 1 200 1 320 1 27
23、0 1 240 1 202 25 48 43 1 300 1 420 1 370 1 340 1 303 47 1 400 1 520 1 470 1 440 1 403 50 1 500 1 620 1 570 1 540 1 503 52 54 1 600 1 720 1 670 1 640 1 603 56 57 1 700 1 820 1 770 1 740 1 703 61 1 800 1 920 1 870 1 840 1 803 30 M20 23 75 2 000 2 120 2 070 2 040 2 003 64 83 2 200 2 320 2 270 2 240 2 2
24、03 72 91 2 400 2 520 2 475 2 445 2 403 100 2 600 2 720 2 675 2 645 2 603 80 107 2 800 2 920 2 875 2 845 2 803 88 115 3 000 3 120 3 075 3 045 3 003 96 123 3 200 3 320 3 275 3 245 3 203 132 3 400 3 540 3 490 3 460 3 403 40 104 221 3 600 3 740 3 690 3 660 3 603 112 233 3 800 3 940 3 890 3 860 3 803 247
25、 4 000 4 140 4 090 4 060 4 003 120 259 aFor type A, values are approximate values. DIN 28031:2013-09 9 4 Marking Flanges are to be marked by the flange manufacturer with the following information: a) Manufacturers symbol; b) number of this standard; c) year of manufacture; d) type of flange; e) nominal size flange thickness; f) material; g) where appropriate, heat number and/or a suitable number indicating the traceability of the material, if the material certificate as in DIN EN 10204 so requires.
