1、Steel butt-welding pipe fittings Elbows and bends with reduced pressure factor Formstcke zum EinschweiBen; Rohrbogen; verminderter Ausnutzungsgrad DIN 2605 Part 1 Supersedes DIN 2605, September 1962 edition, and DIN 2606, July 1965 edition. - Beuth Verlag GmbH, Berlin, has the exclusive right of sal
2、e for German Standards (DIN-NormenJ. DIN 2605 Pari 1 3 Price group In keeping with current practice in standards published by the International Organization for Standardization (/SO), a comma has been used throughout as the decimal marker. Dimensions in mm 1 Field of application This standard specif
3、ies seamless and welded steel elbows and bends that are intended to be butt welded to pipes. Although the wall thicknesses specified correspond to those of the pipes, these fittings do not permit operation at the same internal pressure as the pipe welded on, .e. they have a reduced pressure factor (
4、cf. table 1 and clause 5). 2 Types and designation 45“ elbow 90 elbow 180 bend r is to be calculated as follows: type 2: r = 1 ,O *da type 3:r- 1,5.da type 5: r- 2,5-da type 1 O: r = 5,O. da type 20: r-lO,O-da Designation of a type 3 (3) seamless (S) 90 (90) elbow in accordance with this standard (l
5、), where da is equal to 88,9 mm and s is equal to 2.3 mrn, made from material belonging to material group G as in DIN 2609 (G): Elbow DIN 2605- 1 - 90 - 3 -88,9 X 2,3 S - G Continued on page 2 to 6 . Sales No.0108 08.91 Reproduced by IHS under license with DIN ENG License provided by I.H.S. Germany
6、For Internal Use OnlyPage 2 DIN 2605 Part 1 3 Dimensions Table 1. Dimemions and pressure factor Nominal size DN 15 20 25 32 40 50 65 80 100 125 Maximum pressure factor, Pipe outside diam- eter, 4 ) 21,3 26,9 3397 42,4 4893 m3 76,l 8899 114,3 139,7 - e 5 59 76 85 62 69 86 55 71 86 54 71 87 54 73 87 5
7、8 75 87 93 96 57 75 87 93 96 59 76 88 93 96 61 77 88 93 96 62 77 88 93 97 62 77 88 93 97 r 17,5 28,O 42,5 25,O 29,O 57.5 25.0 38.0 72,5 32,O 48.0 92,5 38,o 57,O 107.5 51 76 135 254 508 63 95 175 318 635 76 114 205 381 762 102 152 270 508 1016 127 190 330 635 1270 152 229 390 762 1524 123 53 74 - 85
8、59 67 - 86 52 70 - 86 52 70 - 86 51 87 56 74 92 96 55 74 87 - 92 96 57 75 87 - 93 96 60 76 88-88 93 96 61 77 88-88 72 - 87 - 54 75 a5 60 68 86 53 70 86 52 70 86 52 87 56 74 93 96 55 74 87 92 96 57 75 87 93 96 60 76 93 96 61 77 72 a7 2,O 2,3 2,6 2,6 2,6 2,9 2,9 3,2 3,6 4,O 45 34 3,2 3,2 3,2 3.6 4,O 4
9、5 5,O 5,6 6,3 6,3 7,l 1 Wall thickness, s, for series as a percentage, for series b 4 57 75 85 - 28 38 53 7 12 18 2 3 5 61 68 86 39 43 71 2 3 5 2 3 5 2 3 5 2 3 5 - - - 10 12 24 10 16 30 13 20 38 16 24 45 54 70 86 42 56 90 4,O - 4,o 54 71 87 53 69 114 53 73 87 57 75 87 93 96 56 75 87 92 96 - - 62 82
10、132 81 106 1 65 284 538 21 32 56 105 210 2 3 5 10 20 2.0 2 3 5 10 20 26 39 73 1 32 263 32 47 85 158 31 6 42 63 112 210 421 102 133 213 356 673 121 1 59 250 425 806 1 59 210 327 565 1073 2.3 2 3 5 10 20 58 75 93 96 a7 23 - 2.6 2 3 5 10 20 61 76 88 93 96 8.8 2 3 5 10 20 61 77 88 93 97 197 260 400 705
11、1 340 53 79 137 263 526 10,o 2 3 5 10 20 61 77 87 93 97 237 313 474 846 1608 63 95 162 31 6 631 150 1 168,3 1 l,o 1) The pipe outside diameters given have been taken from series 1 in IS0 4200. 2) The wall thicknesses specified for series 2, for nominal sizes up to DN 1000, are in accordance with the
12、 normal wall thickness 9 dash in a box indicates a size that has not been standardized. series given in DIN 2458. Reproduced by IHS under license with DIN ENG License provided by I.H.S. Germany For Internal Use OnlyDIN 2605 Part 1 Page 3 51 12,5 - Table 1 (continued). 62 77 87 93 97 62 78 -88 93 97
13、63 78 -88 93 97 66 79 -88 94 97 66 79 -88 94 97 66 79 -88 94 97 66 79 -88 94 97 66 79 -88 94 97 62 75 -83 88 91 61 74 82 87 90 - Pipe outside diam- eter, da 1 - 219,l 45 63 63 78 78 88 88 93 93 97 97 63 78 88- 93 97 63 78 88 - 93 97 66 80 88 - 94 97 66 80 88 - 94 97 - - Maximum pressure factor, I 20
14、3 305 510 1016 2032 254 381 650 1270 2540 305 457 775 1524 3048 356 533 850 1778 3556 406 610 970 2032 4064 457 686 1122 2286 4572 508 762 1245 2540 5080 - b - 313 414 620 1126 2142 22) 43 5,O 5.6 5,6 6,3 6,3 6,3 6,3 7.1 8,O 7 e - 84 126 21 1 421 842 3 6,3 6,3 7,l 8, 8,8 10 11 12,5 12,5 12,5 610 914
15、 1525 3050 61 O0 71 1 1067 1778 3555 71 10 813 1219 2033 4065 8130 - - - Wall thickness, s, for series Ir as a percentage, for series Nominal size DN 200 250 300 3!N 400 450 500 600 700 800 TYP6 - 2 3 5 10 20 1 - 2.9 2 3 62 78 87 93 97 62 78 88 93 97 63 78 88 93 97 - - 62 78 87 93 97 63 78 88 93 97
16、63 78 88 93 97 - 105 158 269 526 1052 2 3 5 10 20 391 518 787 1407 2677 467 619 937 1686 3210 533 71 1 1028 1956 3734 2,9 273 323,Q 2 3 5 10 20 126 1 89 321 631 1263 148 221 352 737 1473 190 2 3 5 10 20 66 79 88 94 97 66 79 88 94 97 11,o - 12,5 - - 66 79 88 94 97 66 79 88 94 97 - 66 80 88 94 97 66 8
17、0 88 94 97 - 610 813 1173 2235 4267 168 253 402 842 1683 2 3 5 10 20 2 3 5 10 20 686 914 1350 251 5 4801 762 1016 1500 2794 5334 1 89 284 465 947 1894 21 o 31 6 51 6 1052 2104 2 3 5 10 20 66 79 88 94 97 66 80 88 94 97 508 2 3 5 10 20 2 3 5 10 20 2 3 5 10 20 - - - 66 79 88 94 97 86 80 88 94 97 914 12
18、19 1830 3355 6405 253 379 632 1263 2527 61 O 71 1 81 3 61 73 81 86 89 60 73 81 86 89 - - 60 72 81 85 88 60 72 81 85 88 - 1066 1422 21 33 391 1 7466 295 442 737 1473 2945 1220 1626 2439 4472 8537 - 337 505 842 1684 3368 a size that has not been standardized. Reproduced by IHS under license with DIN E
19、NG License provided by I.H.S. Germany For Internal Use OnlyPage 4 DIN 2605 Part 1 Table 1 (concluded). Maximum pressure factor, as a percentage, for series Pipe outside diam- eter, da 1) r Wall thickness, s, for series 22) 10 10 12,5 12,5 12.5 3 12,5 12,5 - - - Nominal size DN b e 1 1 61 74 82 87 90
20、 61 74 82 87 90 61 74 82 87 90 - - - 2 60 72 80 85 88 60 72 80 85 88 60 72 81 85 88 7 - - 2 3 5 10 20 2 3 5 10 20 2 3 5 10 20 - - 379 568 947 1 893 3786 421 631 1052 2104 4208 1371 1829 2742 5027 9597 1524 2032 3048 5588 10668 1830 2440 3660 6710 1281 O 900 lo00 1 200 91 4 1016 1220 505 758 1263 252
21、7 5053 2 3 5 10 20 61 74 82 87 90 60 72 81 85 88 2130 2840 4260 7810 14910 588 882 1471 2941 5882 1400 1420 1620 2 3 5 10 20 60 72 81 85 88 - 2430 3240 4860 8910 17010 67 1 1007 1678 3355 6710 - 61 74 82 87 90 1600 :or 1) and 2), see page 2. L dash in a box indicates a size that has not been standar
22、dized. Reproduced by IHS under license with DIN ENG License provided by I.H.S. Germany For Internal Use OnlyDIN 2605 Pari 1 Page 5 Nominal size DN 15tO 65 80 to 100 125 to 200 250 300 to 4% 500 to 600 Table 2 below specifies outside diameters for DIN 2448 or DIN 2458 pipes which are still in use, bu
23、t which deviate from those given in table 1. Elbows and bends for such pipes may still be ordered, provided they comply with all other relevant requirements specified here. Fittings in accordance with table 2should not be used for new designs. Table 2. Elbow and bend dlmen8iions (not suitable for ne
24、w designs) Limit deviations for dimension b b 2b 45O elbow 90 elbow 180 bend I 6,O f 2,5 f 8,O k 7,O f 3,O i 9,0 f 8,5 f 3,5 ir 10.0 f 9,5 f 4,O f 14,O f 12,o k 5,O f 14,O i 16,O f 14,5 f 6.0 700 800 or more To be agreed. f 19,o f 8,O Wall thickness s r b 27.5 52,5 40 65 48 77 51 83 64 1 o1 73 120 8
25、8 140 100 1 56 33,5 62,5 35 67,5 2.6 45 82,5 51 97.5 3) The limit deviations specified for b relate to types 2,3 and 5. these for types 10 and 20 being subject to agree- ment. 4) Dimension b to be measured at the fitting end edges. 2.9 72 127,5 114 1 74 82,5 142,5 65 92 160 77,5 107,5 190 5 Pressure
26、 factor and design assumptions The pressure factor is defined as the ratio of permissible working pressure of the elbow or bend to that of the connect- ing pipe (the former being lower than the latter), and is expressed as a percentage. The wall thicknesses of fittings have been designed so that the
27、 fittings can accommodate the same pressure as the connecting pipe, in accordance with Technische Regel fr Dampfkessel (Code of practice for steam boilers) TRD 301, the following assumptions also hav- ing been made: a) lower limit deviations for pipe wall thickness as follows: for da up to 610 mm: -
28、 12,5 %; ford,greaterthan610 mmandsupto10mm:-0,35mm; s exceeding 10 mm: -0,5 mm; b) lower limit deviations for fitting wall thickness, as given in table 3: c) identical material: d) identical welding factor for longitudinal welds: e) identical outside diameters; f) no allowance for corrosion. 1-00 1
29、27 195 119 149 231 3.2 95 133,5 237.5 146 184 288 3.6 154 196 306 100 142,5 252.5 117,5 175 300 125 181 312.5 181 238 364 192 247 379 142,5 21 5 357.5 21 9 291 434 4.5 6 Other wall thicknesses Elbows and bends with wall thicknesses other than those specified in table 1 may also be ordered in accorda
30、nce with this standard. 1 50 21 6 375 230 294 454 4.5 170 250 430 180 270 455 259 340 519 277 367 552 375 462 702 7 Welding end preparation Where required, the inside of welding ends may be bevelled to an angle of 15O to IS0, or the outside to an angle of 27 to 30, relative to the fitting axis. 8 Te
31、chnical delivery conditions See DIN 2609 for technical delivery conditions for elbows and bends as covered here. 235 340 580 63 Reproduced by IHS under license with DIN ENG License provided by I.H.S. Germany For Internal Use OnlyPage 6 DIN 2605 Part 1 Standards and other documents refened to DIN 244
32、8 Seamless steel pipes and tubes; dimensions and mass per unit length DIN 2458 Welded steel pipes and tubes; dimensions and mass DIN 2609 Steel butt-welding pipe fittings; technical delivery conditions IS0 4200 Plain end steel tubes, welded and seamless; general tables of dimensions and masses per u
33、nit length TRD 301) Zyhderschalen unter innerem Uberdruck (Cylindrical shells subject to internal pressure) Other relevant standard DIN 2605 Part 2 Steel butt-welding pipe fittings: elbows and bends for use at full service pressure Previous editions DIN 2605: 11.53.09.62; DIN 2606: 07.65. Amendments
34、 The following amendments have been made to the September 1962 edition of DIN 2605 and the July 1965 edition of DIN 2606. a) DIN 2605 and DIN 2606 have been combined to form a single standard. b) The scope of the standard has been extended to cover fittings up to size DN 1600. c) Fitting types 2,lO and 20 and 45O bends are now included. International Patent Classification B 23 K F 16 L 43/00 *) Obtainable from Beuth Verlag GmbH, BurggrafenstraBe 6, D-1000 Berlin 30. Reproduced by IHS under license with DIN ENG License provided by I.H.S. Germany For Internal Use Only
