1、 DEUTSCHE NORMFebruary 2004DIN 16831-7 ICS 23.040.45; 23.040.60; 23.040.80 Supersedes DIN 16831-7:1999-10 Pipe fittings and joint assemblies for polybutene pressure pipes Type PB 125 Part 7: Dimensions of bushings, flanges and sealing elements for socket welding Rohrverbindungen und Formstcke fr Dru
2、ckrohrleitungen aus Polybuten (PB) PB 125 Teil 7: Bunde, Flansche, Dichtringe fr Muffenschweiung, Mae Document comprises 14 pagesTranslation by DIN-Sprachendienst. In case of doubt, the German-language original should be consulted as the authoritative text. No part of this translation may be reprodu
3、ced without prior permission of DIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany, has the exclusive right of sale for German Standards (DIN-Normen). English price group 9 www.din.de www.beuth.de !,k|t“09.06 9728981DIN 16831-7:2004-02 2 Contents Page Foreword.
4、 2 1 Scope . 2 2 Normative references . 3 3 Dimensions and designation. 4 4 Material 10 5 Flanged assemblies 11 6 Marking 13 Bibliography . 14 Foreword This standard has been prepared by Technical Committee Fittings fr Druckrohre aus Thermoplasten of the Normenausschuss Kunststoffe (Plastics Standar
5、ds Committee). Amendments The standard has been editorially revised to bring it in line with Parts 1, 2, 3, 4 and 6 of the DIN 16831 series of standards. Previous editions DIN 16831-7: 1999-10 1 Scope This standard specifies dimensions and tolerances for injection-moulded1)bushings with a standard d
6、imen-sion ratio SDR2)of 11, and flanges for socket welding (including flange assemblies) as in DIN 16831-5, and for the appropriate sealing elements, for jointing pressure pipes made from type PB 125 polybutene, as speci-fied in DIN 16968 and DIN 16969, or for jointing such pipes with pipes made of
7、different materials. NOTE Any relevant European Standards shall be observed. 1) “Injection-moulded” is defined in DIN EN ISO 472. 2) SDR: nominal value of diameter/wall thickness ratio of fittings as specified in DIN 16969. DIN 16831-7:2004-02 3 2 Normative references This standard incorporates, by
8、dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text, and the titles of the publications are listed below. For dated references, subsequent amendments to or revisions of any of these publications apply to this stan
9、dard only when incorporated in it by amendment or revision. For undated references, the latest edition of the publication referred to (including any amendments) applies. DIN 2501-1:1972-02, Flanges Mating dimensions DIN 8063-4, Pipe fittings and joint assemblies for unplasticized polyvinyl chloride
10、(PVC-U) pressure pipes Bushings, flanges and seals Dimensions DIN 8063-5, Pipe fittings and joint assemblies for unplasticized polyvinyl chloride (PVC-U) pressure pipes General quality requirements and testing DIN 16831-5, Pipe fittings and joint assemblies for type PB 125 polybutene pressure pipes
11、General quality requirements and testing DIN 16872, Glass fibre reinforced polyester resin (UP-GRP) flanges for use with thermoplastics pipe fittings Dimensions DIN 16901, Plastics mouldings Tolerances and acceptance conditions for linear dimensions DIN 16963-4, Pipe fittings and joint assemblies fo
12、r high-density polyethylene (PE-HD) pressure pipes Adaptors for heated tool butt welding, flanges and sealing elements Dimensions DIN 16963-11, Pipe fittings and joint assemblies for PE 80 and PE 100 polyethylene pressure pipes Dimensions of bushings, flanges and sealing elements for socket welding
13、DIN 16968, Polybutene (PB) pipes General quality requirements and testing DIN 16969, Type PB 125 polybutene pipes Dimensions DIN 28091-1, Sheet gasket materials General DIN 28091-2, Sheet gasket materials Technical delivery conditions for compressed fibre gasket materials DIN EN 573-3, Aluminium and
14、 aluminium alloys Chemical composition and form of wrought products Part 3: Chemical composition DIN EN 681-1, Elastomeric seals Material requirements for pipe joint seals used in water and drainage applications Part 1: Vulcanized rubber DIN EN 1092-1, Flanges and their joints Circular flanges for p
15、ipes, valves, fittings and accessories Part 1: Steel flanges, PN designated DIN EN 1561, Founding Grey cast iron DIN EN 10025-1, Hot rolled products of structural steels Part 1: General technical delivery conditions DIN EN 10088-1, Stainless steels Part 1: List of stainless steels DIN EN 60893-1, In
16、sulating materials Industrial rigid laminated sheets based on thermosetting resins for electrical purposes Part 1: Definitions, designations and general requirements (IEC 60893-1:2004) DIN EN ISO 472, Plastics Vocabulary DIN 16831-7:2004-02 4 ISO 4065, Thermoplastics pipes Universal wall thickness t
17、able 3 Dimensions and designation 3.1 General The designs shown are for illustrative purposes only; however, the dimensions shall be as specified. Tolerances shall be as specified in DIN 16901, corresponding to tolerance class 160. 3.2 Flanged bushings Figure 1 Smooth flanged bushing (no. 9) Figure
18、2 Ribbed flanged bushing (no. 9A) Figure 3 Grooved flanged bushing (no. 12) Designation of a smooth flanged bushing (9) for type A socket welding, made from type PB 125 polybutene, for use with pipes with an outside diameter, d1, of 63 mm: Flanged bushing DIN 16831 9 A63 PB Designation of a ribbed f
19、langed bushing (9A) for type A socket welding, made from type PB 125 polybutene, for use with pipes with an outside diameter, d1, of 63 mm: Flanged bushing DIN 16831 9A A63 PB Designation of a grooved flanged bushing (12) for type B socket welding, made from type PB 125 polybutene, for use with pipe
20、s with an outside diameter, d1, of 63 mm: Flanged bushing DIN 16831 12 B63 PB DIN 16831-7:2004-02 5 Table 1 Flanged bushings (nos. 9, 9A and 12) Dimensions in millimetres b Mean inside diameter at socket base d3aMean inside diameter at socket mouth d4aOvalitybd5Limit deviation Limit deviation Limit
21、deviation Limit deviationPipe outside diameter d1Type Ad Type Be Type AdType BeType AdType BeType AdType Bemax. 16 6 15,3 15,5 22 0,1 20 7 19,3 5,0019,5 5,000,6 27 0,15 25 9 24,1 24,4 33 0,15 32 10 31,0 31,3 41 40 11 38,9 39,3 0,7 50 50 12 48,9 49,3 61 0,2 63 14 61,7 6,0062,2 6,000,8 76 75 16 72,7 7
22、2,9 8,006,0074,0 73,2 8,006,001 90 90 17 87,4 87,4 107,0088,8 87,8 107,001,2 108 110 18 106,8 106,5 108,00108,5 107,1 108,001,4 131 0,3 aThe mean inside diameter is calculated as the arithmetic mean of two measurements taken at right angles to each other on the same plane. bOvality is the difference
23、 between the greatest and smallest inside diameter, measured on the same plane. cFor types A and B, where d1is 63 mm or less, t1= 0,3 d1+ 8,5 mm For type A, where d1is 75 mm or more, t1= 0,2 d1+ 15 mm For type B, where d1is 75 mm or more, t1= 0,3 d1+ 8,5 mm dType A is for unpeeled pipe ends. eType B
24、 is for peeled pipe ends, in accordance with the fitting manufacturers instructions. DIN 16831-7:2004-02 6 Table 1 (concluded) Dimensions in millimetres Pipe outside diameter d1d6f d7d11d12d13n p r t1 min.ck1k2Limit deviation Limit deviation 0,1 Type AdType Bemin. min. 16 40 13 13 25,0 16,2 2,8 9 3
25、13 3 6 20 45 16 16 29,7 20,9 2,8 10 3 14,5 3 6 25 58 21 21 34,5 25,7 2,8 12 3 16 3 6 32 68 28 28 42,4 1,0033,6 1,002,8 13 3 18 3 6 40 78 36 36 53,7 40,1 4,3 16 3 20,5 3 8 50 88 45 45 63,2 49,6 4,3 17 3 23,5 3 8 63 102 57 57 78,9 65,3 4,3 19 4 27,5 3 8 75 122 69 69 91,6 78,0 4,3 21 4 30 31 3 8 90 138
26、 84 84 110,5 2,0096,9 2,004,3 22 4 33 35,5 5 10 110 158 102 102 132,8 3,00114,8 3,005,6 24 4 37 41,5 5 10 aThe mean inside diameter is calculated as the arithmetic mean of two measurements taken at right angles to each other on the same plane. bOvality is the difference between the greatest and smal
27、lest inside diameter, measured on the same plane. cFor types A and B, where d1is 63 mm or less, t1= 0,3 d1+ 8,5 mm For type A, where d1is 75 mm or more, t1= 0,2 d1+ 15 mm For type B, where d1is 75 mm or more, t1= 0,3 d1+ 8,5 mm dType A is for unpeeled pipe ends. eType B is for peeled pipe ends, in a
28、ccordance with the fitting manufacturers instructions.fCollar diameter, d6, in accordance with flange facing diameter d1as in DIN EN 1092-1. 3.3 Flanges (no. 11) Dimensions of flanges for use with pipes with an outside diameter, d1, of from 20 mm to 75 mm shall be in accordance with DIN 16963-4, no.
29、 2 (cf. table 2). Flanges for use with pipes with outside diameters of 16 mm, 90 mm or 110 mm shall be in accordance with DIN 16963-11, no. 11 (cf. table 2). The flange thickness, t2, shall be selected by the manufacturer, taking account of the material used (cf. table 5). DIN 16831-7:2004-02 7 Tabl
30、e 2 Flanges (no. 11) Dimensions in millimetres d10PN 16aD k Bolts d2r Pipe outside diameter d1Nominal flange size DN Limit devia-tion Number Thread size Flange designation 16 10 23 90 60 4 M 12 14 3 DIN 16963-11-16-16 c d20 15 28 95 65 4 M 12 14 3 DIN 16963-2-20-10 ac d25 20 34 5,00105 75 4 M 12 14
31、3 DIN 16963-2-25-10 ac d32 25 42 115 85 4 M 12 14 3 DIN 16963-2-32-10 ac d40 32 51 140 100 4 M 16 18 3 DIN 16963-2-40-10 ac d50 40 62 5,00150 110 4 M 16 18 3 DIN 16963-2-50-10 ac d63 50 78 165 125 4 M 16 18 3 DIN 16963-2-63-10 ac d75 65 92 185 145 4bM 16 18 3 DIN 16963-2-75-10 ac d90 80 110 200 160
32、8 M 16 18 3 DIN 16963-11-90-16 c d110 100 133 10220 180 8 M 16 18 3 DIN 16963-11-110-16 c daDimensions and other details are those given in DIN 2501-1:1972-02 and DIN EN 1092-1 for PN 16. In reference standard DIN 16963-4, flanges with identical connecting dimensions are designated as being for PN 1
33、0, the maximum pressure for PE flanges presently covered by the standard. Pending revision of DIN 16963-4, this designation shall remain as “PN 10”. bThe number of bolts is as specified in DIN 2501-1:1972-02. DIN EN 1092-1 favours flanges with 8 boltholes for DN 65, but flanges with 4 boltholes may
34、be supplied at the customers request. cMaterial and designation as in table 5. dFlanges for pipes with an outside diameter of 20 mm or greater and made from glass-fibre-reinforced polyester resin (GRP) shall be designated as in DIN 16872. Figure 4 Flange (no. 11) DIN 16831-7:2004-02 8 3.4 Sealing el
35、ements 3.4.1 Gaskets (no. 10) The dimensions of gaskets shall be as in DIN 16963-11 (cf. table 3) Table 3 Gasket (no. 10) Dimensions in millimetres Pipe outside diameter d1d8ad9bscGasket designationd16 40 16 2 DIN 16963-10-16d20 45 20 2 DIN 16963-10-20d25 58 25 2 DIN 16963-10-25d32 68 32 2 DIN 16963
36、-10-32d40 78 40 2 DIN 16963-10-40d50 88 50 2 DIN 16963-10-50d63 102 63 2 DIN 16963-10-63d75 122 75 2 DIN 16963-10-75d90 138 90 2 DIN 16963-10-90d110 158 110 3 DIN 16963-10-110daIdentical with collar diameter, d6. bIdentical with pipe outside diameter, d1. cThickness for fibre-reinforced gasket mater
37、ials as in DIN 28091-1 and DIN 28091-2. The thickness for rubber gaskets shall be selected on the basis of their hardness class (e.g. for hardness class IRHD 60 (cf. DIN EN 681-1) a gasket thickness of 5 mm is recommended). dSee table 5 for materials. Figure 5 Gasket (no. 10) DIN 16831-7:2004-02 9 3
38、.4.2 O-rings (no. 13) Dimensions of O-rings shall be as in DIN 8063-4 (cf. table 4). Table 4 O-rings (no. 13) Dimensions in millimetres d14d15Pipe outside diameter d1Limit deviation Limit deviation O-ring designation16 18,6 0,3 3,5 0,1 DIN 8063-16-16a20 23,4 0,4 3,5 0,1 DIN 8063-16-20a25 28,2 0,4 3,
39、5 0,1 DIN 8063-16-25a32 36,1 0,4 3,5 0,1 DIN 8063-16-32a40 43,8 0,5 5,3 0,13 DIN 8063-16-40a50 53,3 0,5 5,3 0,13 DIN 8063-16-50a63 69,2 0,7 5,3 0,13 DIN 8063-16-63a75 81,9 0,7 5,3 0,13 DIN 8063-16-75a90 101 0,7 5,3 0,13 DIN 8063-16-90a110 120 0,7 7 0,15 DIN 8063-16-110aaSee table 5 for materials. Fi
40、gure 6 O-ring (no. 13)DIN 16831-7:2004-02 10 4 Material Table 5 Material to be used Material Item no. Component GG St X Al Sp PVC-U UP-GRF PP/F/St PB 9 Flanged bushing with flat face + 9A Flanged bushing with ribbed face + 10 Gasket For type, concentration and temperature of fluid conveyed 11 Flange
41、 + + + + + + + + 12 Flanged bushing with grooved face + 13 O-ring For type, concentration and temperature of fluid conveyed Key GG Grey cast iron as in DIN EN 1561 St Steel as in DIN EN 10025-1 X Stainless steel as in DIN EN 10088-1 Al Aluminium or aluminium alloys as in DIN EN 573-3 Sp Laminated ma
42、terial as in DIN EN 60893-1 PVC-U Unplasticized polyvinyl chloride as in DIN 8063-5 UP-GRF Glass fibre reinforced polyester resin as in DIN 16872 PP/F/St Steel reinforced polypropylene (in accordance with manufacturers specifications) PB Polybutene as in DIN 16831-5 + Suitable Unsuitable DIN 16831-7
43、:2004-02 11 5 Flanged assemblies Table 6 Correlation of nominal sizes with pipe outside diameters Dimensions in millimetres Nominal size of flanged assembly Mean pipe outside diameter Limit deviations Type F 4 (Fig. 7) Type F 4A (Fig. 8) Type F 5 (Fig. 9) d1Unpeeled pipe Type A Peeled pipe Type B 10
44、 10 10 16 15 15 15 20 20 20 20 25 25 25 25 32 32 32 32 40 40 40 40 50 03,0+2,0050 50 50 63 04,0+65 65 65 75 05,0+80 80 80 90 06,0+3,00100 100 100 110 07,0+4,00Joint assemblies of the types shown in figures 7, 8 and 9 can be produced using the bushings, flanges and sealing elements dealt with in clau
45、se 3. DIN 16831-7:2004-02 12 Figure 7 Type F 4 flanged assembly Figure 8 Type F 4A flanged assembly Figure 9 Type F 5 flanged assembly Table 7 Parts list for type F 4 flanged assemblies No. Part 9 Flanged bushing with flat face 9A Flanged bushing with ribbed face 10 Gasket 11 Flange Table 8 Parts li
46、st for type F 4A flanged assemblies No. Part 9A Flanged bushing with ribbed face 10 Gasket 11 Flange Table 9 Parts list for type F 5 flanged assemblies No. Part 9 Flanged bushing with flat face 11 Flange 12 Flanged bushing with grooved face 13 O-ring DIN 16831-7:2004-02 13 6 Marking Marking shall in
47、clude the minimum details given in table 10, and shall be printed or stamped on fittings so as to remain legible throughout their service life. Table 10 Required marking details Detail Mark Manufacturers name or trademark xyz Material symbol PB Place and date of productiona aSDR seriesb e.g. SDR 11
48、Pipe outside diameter (nominal size) e.g. 32 aThe details may be coded and shall give the production period and site. bAlternatively the pipe series S5 may be given in accordance with ISO 4065.Marking as in clause 6 shall be implemented for fittings which are not covered by other standards or regulations for specific applications. DIN 16831-7:2004-02 14 Bibliography DIN EN ISO 1043-1, Plastics Symbols and abbreviated terms Part 1: Basic polymers and their special characteristics
