1、 No part of this translation may be reproduced without the 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).Ref. No. DIN 2873 : 2002-06English price group 13 Sales No. 011304
2、.05Continued on pages 2 to 26.ICS 23.040.60Flansch-Rohre aus Stahl und Flansch-Formstcke aus Stahl mit EmaillierungIn keeping with current practice in standards published by the International Organization for Standardization (ISO), a comma has been used throughout as the decimal marker.2873PN 10 and
3、 PN 25 anged enamelled steel pipes and ttingsTranslation by DIN-Sprachendienst.In case of doubt, the German-language original should be consulted as the authoritative text.DEUTSCHE NORM June 2002ForewordThis standard has been prepared by the Normenausschuss Rohrleitungen und Dampfkesselanlagen (Pipe
4、-lines and Boilers Standards Committee).Supersedes November 1993 edition.ContentsPageForeword . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1Amendments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5、. . . . . .21 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Normative references . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Dimensions and designations. . . . . . . . . . . . . . . . . . . . . .
6、. . . . . . . . . . . 33.1 Flanged elbows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43.1.1 45 elbows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43.1.2 90 elbows . . . . . . . . . . . . . . . . . . . . .
7、 . . . . . . . . . . . . . . . . . . . . . . . . . . .53.2 Flanged tees . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63.3 Flanged crosses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93.4 Flanged tapers. . . . .
8、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123.5 Reducers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143.6 Spacers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9、. . . 163.7 Blank anges. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 173.8 Flanged pipes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 183.9 Instrument nozzles . . . . . . . . . . . . . . . . . . . . . . . . .
10、. . . . . . . . . . . . . . . . 203.10 Tapered anges. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 213.11 Bushes and adjustable anges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 224 Tolerances and limit deviations . . . . . . . . . . . . . . .
11、 . . . . . . . . . . . . . . . . 234.1 Angularity tolerance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 234.2 Limit deviations for length l9(pipes) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 254.3 Limit deviations for lengths l1, l2and l4to l8(ttings
12、) . . . . . . . . . . . . . 254.4 Limit deviations for bushes and adjustable anges. . . . . . . . . . . . . . . . . 255 Wall thickness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 256 Flange radii on pipes, elbows and tapers . . . . . . . . . . . . . . .
13、. . . . . . . . 267 Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 268 Technical delivery conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26Page 2DIN 2873 : 2002-06AmendmentsThis standard differs from the Nov
14、ember 1993 edition in that:a) its scope has been extended to cover ttings of sizes DN 300, DN 350, and DN 400, and those with a pressure rating of PN 25;b) steel designations have been updated;c) the standard has been editorially revised.Previous editionsDIN 2873: 1982-01, 1993-11.All dimensions are
15、 in millimetres.1 ScopeThis standard species dimensions and technical delivery conditions for anged enamelled steel pipes and ttings mainly for use in process engineering applications. Fittings are suitable for use at service temperatures from 10 C to 200 C and at pressures no higher than the nomina
16、l pressures given here (10 bar or 25 bar).Where service temperatures will be below 10 C, AD-Merkblatt (AD Code of practice) W 10, shall be taken into consideration.The dimensions have been specied to include the enamel thickness.2 Normative referencesThis standard incorporates, by dated or undated r
17、eference, provisions from other publications. These norma-tive references are cited at the appropriate places in the text, and the titles of the publications are listed be-low. For dated references, subsequent amendments to or revisions of any of these publications apply to this standard only when i
18、ncorporated in it by amendment or revision. For undated references, the latest edition of the publication referred to applies.DIN 875 Steel squaresDIN 876-1 Surface plates Natural hard rock surface plates Requirements and testingDIN 876-2 Surface plates Cast iron surface plates Requirements and test
19、ingDIN 1626 and DIN 1629*)DIN 2275 Thickness gaugesDIN 2876 Enamelled steel anged pipes and ttings Technical delivery conditionsDIN 28150 PN 10 divided loose plate anges for use with enamelled welding necksDIN EN 1092-1 Flanges and their joints Circular anges for pipes, valves, ttings and accessorie
20、s Part 1: Steel anges, PN designatedDIN EN 10025 Hot rolled unalloyed structural steel products Technical delivery conditions (includes Amendment A1 : 1993)DIN EN 10208-1 Technical delivery conditions for steel pipes for use with combustible uids Part 1: Pipes of requirement class ADIN EN 10216-1 Se
21、amless steel tubes for pressure purposes Technical delivery conditions Part 1: Non-alloy steel tubes with specied room temperature propertiesDIN EN 10217-1 Welded steel tubes for pressure purposes Technical delivery conditions Part 1: Non-alloy steel tubes with specied room temperature propertiesDIN
22、 EN 10224 Non-alloy steel tubes for the conveyance of acqueous liquids including water for human consumption Technical delivery conditionsDIN EN 10296-1 Welded circular steel tubes for mechanical and general engineering purposes Technical delivery conditions Part 1: Non-alloy and alloy steel tubesDI
23、N EN 10297-1 Seamless circular steel tubes for mechanical and general engineering purposes Techni-cal delivery conditions Part 1: Non-alloy and alloy steel tubes*) Translators note. Standards DIN 1626 and DIN 1629 have been supersided by DIN EN 10208-1, DIN EN 10216-1, DIN EN 10217-1, DIN EN 10224,
24、DIN EN 10296-1 and 10297-1.Page 3DIN 2873 : 2002-06DIN EN 10253-2 Butt welding pipe ttings Part 2: Wrought carbon and ferritic alloy steel with specic inspection requirements1)AD-Merkblatt W10 Werkstoffe fr tiefe Temperaturen; Eisenwerkstoffe (Ferrous materials for low service tem-peratures)2)3 Dime
25、nsions and designationsThe designs shown are for illustrative purposes only; however, the dimensions of pipes and ttings shall be as specied.1) Currently at draft stage.2) Obtainable from Beuth Verlag GmbH, Burggrafenstr. 6, 10772 Berlin, Germany.Page 4DIN 2873 : 2002-063.1 Flanged elbows3.1.1 45 el
26、bowsSee table 18 for dimensions d1and s1.Figure 1: 45 elbowsDesignation of an enamelled steel (Stem) 45 elbow, PN 10, DN1100:Elbow DIN 2873 45 10 100 StemTable 1: 45 elbowsDN1Length l1forPN 10 PN 2525 6032 6540 7050 80 8565 85 9580 95 105100 105 120125 125 140150 150 170200 180 250 220 300 260 350 2
27、70 400 300 Page 5DIN 2873 : 2002-063.1.2 90 elbowsSee table 18 for dimensions d1and s1.Figure 2: 90 elbowDesignation of an enamelled steel (Stem) 90 elbow, PN 10, DN1100Elbow DIN 2873 90 10 100 StemTable 2: 90 elbowsDN1Dimension l2PN 10 PN 2525 9032 10040 10550 115 12065 120 13080 135 145100 155 170
28、125 175 190150 195 215200 260 250 315 300 350 350 400 400 450 Page 6DIN 2873 : 2002-063.2 Flanged teesSee table 18 for dimensions d1, d2, s1,and s2.Figure 3: Flanged teeDesignation of a anged enamelled steel (Stem) tee, PN 10, DN1100 and DN2100:Tee DIN 2873 T 10 100 100 StemDesignation of a anged en
29、amelled steel (Stem) tee, PN 10, DN1100, reducing on branch to DN250:Tee DIN 2873 T 10 100 50 StemTable 3: Flanged teesDN1DN2Lengthsl2l3l4PN 10 PN 25 PN 10 PN 25 PN 10 PN 2525 25 190 190 180322510019520032 10040251059521032 10040 1055025115 120100230 24032 10540 11050 115 120(continued)Page 7DIN 287
30、3 : 2002-06DN1DN2Lengthsl2l3l4PN 10 PN 25 PN 10 PN 25 PN 10 PN 256525120 130105240 26032 11040 11550 120 12565 120 1308025135 145115270 29032 12040 12550 130 13565 135 14580 135 14510025155 170125310 34032 13040 13550 140 14565 145 15580 150 160100 155 17012525175 190140350 38032 14540 15050 155 160
31、65 160 17080 165 175100 170 185125 175 19015025195 215155390 43032 16040 16550 170 17565 175 18580 180 190100 185 200125 190 205150 195 21520025260 185 520 32 19040 19550 20065 20580 210100 215125 220150 225200 260(continued)Table 3 (continued)Page 8DIN 2873 : 2002-06DN1DN2Lengthsl2l3l4PN 10 PN 25 P
32、N 10 PN 25 PN 10 PN 2525025315 230 630 32 22540 24050 24565 25080 255100 260125 265150 270200 275250 31530025350 290 700 32 29540 30050 30565 31080 315100 320125 325150 330200 335250 340300 350350150400 355 800 200 360250 365300 370350 400400150450 365 900 200 375250 380300 385350 390400 450Table 3
33、(concluded)Page 9DIN 2873 : 2002-063.3 Flanged crossesSee table 18 for dimensions d1, d2, s1,and s2Figure 4: Flanged crossesDesignation of a anged enamelled steel (Stem) cross (K), PN 10, DN1100 and DN2100Cross DIN 2873 K 10 100 100 StemDesignation of a anged enamelled steel (Stem) cross, PN 10, DN1
34、100, reducing on branch to DN250:Cross DIN 2873 K 10 100 50 StemTable 4: Flanged crossesDN1DN2Lengthsl2l3l4l5PN 10 PN 25 PN 10 PN 25 PN 10 PN 25 PN 10 PN 2525 25 90 90 180 18032251009520019032 100 20040251059521019032 100 20040 105 2105025115 120100230 24020032 105 21040 110 22050 115 120 230 240(co
35、ntinued)Page 10DIN 2873 : 2002-06DN1DN2Lengthsl2l3l4l5PN 10 PN 25 PN 10 PN 25 PN 10 PN 25 PN 10 PN 256525120 130105240 26021032 110 22040 115 23050 120 125 240 25065 120 130 240 2608025135 145115270 29023032 120 24040 125 25050 130 135 260 27065 135 145 270 29080 135 145 270 29010025155 170125310 34
36、025032 130 26040 135 27050 140 145 280 29065 145 155 290 31080 150 160 300 320100 155 170 310 34012525175 190140350 38028032 145 29040 150 30050 155 160 310 32065 160 170 320 34080 165 175 330 350100 170 185 340 370125 175 190 350 38015025195 215155390 43031032 160 32040 165 33050 170 175 340 35065
37、175 185 350 37080 180 190 360 380100 185 200 370 400125 190 205 380 410150 195 215 390 43020025260 185 520 37032 190 38040 195 39050 200 40065 205 41080 210 420100 215 430125 220 440150 225 450200 260 520(continued)Table 4 (continued)Page 11DIN 2873 : 2002-06Table 4 (concluded)DN1DN2Lengthsl2l3l4l5P
38、N 10 PN 25 PN 10 PN 25 PN 10 PN 25 PN 10 PN 2525025315 230 630 46032 235 47040 240 48050 245 49065 250 50080 255 510100 260 520125 265 530150 270 540200 275 550250 315 63030025350 290 700 58032 295 59040 300 60050 305 61065 310 62080 315 630100 320 640125 325 650150 330 660200 335 670250 340 680300
39、350 700Page 12DIN 2873 : 2002-063.4 Flanged tapersConcentric taper (RK) Eccentric taper (RE)See table 18 for dimensions d1, d2, s1, and s2.Figure 5: Flanged tapersDesignation of a anged enamelled steel (Stem) taper, type RK, PN 10, DN1100 and DN250:Taper DIN 2873 RK 10 100 50 StemTable 5: Flanged ta
40、persDN1DN2eRLengthl6PN 10 PN 2532 25 41401404025 732 35025 1314532 940 66525 21150 16032 1740 1450 88032 23160 17540 2050 1465 610040 33175 20050 2765 1980 13(continued)Page 13DIN 2873 : 2002-06DN1DN2eRLengthl6PN 10 PN 2512550 40200 22565 3280 25100 1315065 46225 25080 40100 27125 1420080 65250 100
41、52125 40150 25250100 79300 125 67150 52200 2730050 129350 65 12180 115100 103125 90150 76200 51250 28350150 96420 200 72250 48300 21400200 91440 250 65300 38350 17Table 5 (concluded)Page 14DIN 2873 : 2002-063.5 ReducersReducer with threaded blind hole Reducer with clearance holeFlange dimensions as
42、in DIN EN 1092-1.1) Transition from DN1to DN2at manufacturers discretion.Figure 6: ReducersDesignation of an enamelled steel reducer (RF), PN 10, DN1100 and DN250:Reducer DIN 2873 RF 10 100 50 StemTable 6: PN 10 reducers DN1DN2D d4k1Boltsd7d5k2BoltsLengthNumberThread sizeNumberThread sized6d8l732 25
43、 140 78 1004M16 68 854M12354025150 88 11032 78 100 M165025165 102 12568 85 M1232 78 100M1640 88 1106525185 122 145 18 68 85 M1232M16 78 100M1640 88 11050 102 1258025200 138 160 8 18 68 854M123532M16 78 100M1640 88 11050 102 12565 122 145(continued)All other dimensions as for reducer with threaded bl
44、ind holePage 15DIN 2873 : 2002-06DN1DN2D d4k1Boltsd7d5k2BoltsLengthNumberThread sizeNumberThread sized6d8l710025220 158 180 8 1868 854M124532 78 100M1640 88 11050M16 102 12565 122 14580 138 160 8 M1612540250 188 2408 1888 1104 M164550 102 12565M16 122 14580 138 1608 M16100 158 18015050285 212 240 23
45、102 1254 M1665 122 14580 138 1608 M16100M20 158 180125 188 21020050340 268 295 23102 1254 M164565 122 14580 138 1608M16100 158 180125 188 210150 M20 212 240 M20250100395 320 350 12 23158 180M16125 188 210150 212 240M20200 M20 268 295300100445 370 400 12 23158 1808M1645125 188 210150 212 240M20200 26
46、8 295250 M20 320 350 12350150505 430 460 16 23312 240 8200 268 295 8250 320 350 12300 M20 370 400 12400150565 482 515 16 27212 240 8200 268 295 8250 320 350 12300 370 400 12350 M24 430 460 16Table 6 (concluded)Page 16DIN 2873 : 2002-063.6 SpacersSpacers with collars are intended to be used with pipe
47、s instead of adjustable anges.Simple design Design with collarsFigure 7: SpacersDesignation of an enamelled steel (Stem) spacer, with PN 10, DN1100 and length l8= 50 mm:Spacer DIN 2873 10 100 50 StemTable 7: SpacersDN1 d4Length l81) Min. Max.25 68129032 7840 8850 10265 12280 138100 15815125 188150 2
48、12100200 268250 320300 370350 43025400 4821) In the case of lengths between 50 mm and 80 mm, either design may be used.Page 17DIN 2873 : 2002-063.7 Blank angesFigure 8: Blank angeDesignation of an enamelled steel (Stem) blank ange (BF), PN 10, DN1100:Flange DIN 2873 BF 10 100 StemTable 8: PN 10 blan
49、k angesDN1b3D1)d4k11)Boltsmin. Number d92516115 68 8541432 140 78 1001840 150 88 1105018165 102 12565 185 122 14580 20 200 138 160818100 22 220 158 18012524250 188 210150 285 212 24022200 26 340 268 29525028395 320 35012 22300 445 370 400350 505 430 4601622400 565 482 515 261) Mating dimensions as in DIN EN 1092-1.Page 18DIN 2873 : 2002
