1、 DEUTSCHE NORMMay 2003DIN 16831-2 ICS 23.040.45 Pipe fittings and joint assemblies for polybutene pressure pipes Type PB 125 Part 2: Dimensions of injection-moulded tees for socket welding Rohrverbindungen und Formstcke fr Druckrohrleitungen aus Polybuten (PB) PB 125 Teil 2: T-Stcke aus Spritzguss f
2、r Muffenschweiung, Mae Document comprises 11 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 reproduced without prior permission of DIN Deutsches Institut fr Normung e. V., Berlin
3、. Beuth Verlag GmbH, 10772 Berlin, Germany, has the exclusive right of sale for German Standards (DIN-Normen). English price group 7 www.din.de www.beuth.de !,k|m“09.06 9728974DIN 16831-2:2003-05 2 Contents Page Foreword 2 1 Scope 2 2 Normative references 2 3 Dimensions and designation 3 4 Marking .
4、 9 Annex A (informative) Explanatory notes. 10 Bibliography 11 Foreword This standard has been prepared by Technical Committee Fittings fr Druckrohre aus Thermoplasten of the Normenausschuss Kunststoffe (Plastics Standards Committee). 1 Scope This standard applies to injection-moulded1)polybutene (P
5、B) tees as in DIN 16831-5 for thermo-compression socket welding to polybutene pipes as in DIN 16968 and DIN 16969. The standard specifies the dimensions of fittings for selected pipe outside diameters. NOTE Any relevant European Standards shall be observed. 2 Normative references This standard incor
6、porates, by 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
7、to this standard 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 16831-5, Pipe fittings and joint assemblies for type PB 125 polybutene pressure pipes General quality requirements
8、 and testing DIN 16901, Plastics mouldings Tolerances and acceptance conditions for linear dimensions DIN 16968, Polybutene (PB) pipes General quality requirements and testing DIN 16969, Type PB 125 polybutene pipes Dimensions DIN EN ISO 472, Plastics Vocabulary 1) “Injection-moulded” is defined in
9、DIN EN ISO 472. DIN 16831-2:2003-05 3 3 Dimensions and designation 3.1 General The designs shown in figures 1 to 4 are for illustrative purposes only; however, the dimensions shall be as in tables 1 to 3. The limit deviation for angles shall be 2 and tolerances shall be as specified in DIN 16901, co
10、rresponding to tolerance class 160. 3.2 Tees (types T1, Tr2, Tr3, Tr2-3) Figure 1 Type T1 equal 90 tee2)2min1dk = (1)Figure 2 Type Tr2, branch reduced 90 tee3)2min1IIdk = (2)2min2Idk = (3)2) See table 2 for dimensions. 3) See tables 2 and 3 for dimensions. DIN 16831-2:2003-05 4 Figure 3 Type Tr3, en
11、d reduced 90 tee4)2min1IIdk = (4)dI= dII(5)Figure 4 Type Tr2-3, branch and end reduced 90 tee5)2min1IIdk = (6)2min2Idk = (7)dII= dIII(8)3.3 Designation Designation of a type A T1, equal 90 tee for socket welding, for use with SDR 11 series pipes with an outside diameter, d, of 25 mm: Tee DIN 16831 T
12、1 A 25 11 Designation of a type A Tr2, branch reduced 90 tee for socket welding, for use with SDR 11 series pipes with an outside diameter, d o dIof 110 mm and d o dIIof 63 mm: Tee DIN 16831 Tr2 A 110 63 11 NOTE Fittings for pipe outside diameters of 16 mm d 63 mm shall be designated as type A fitti
13、ngs only.4) This standard does not include dimension tables for type Tr3 and Tr2-3 tees. Dimensions k1and k2can be calculated using the equations given. The relevant dimensions and tolerances of the socket outlet correspond to those for type T1 tees joining with a pipe of the appropriate outside dia
14、meter, d. 5) See note 4. DIN 16831-2:2003-05 5 Table 1 Dimensions of type T1 equal 90 tee Dimensions in millimetres Mean inside diameter Ovalitycat socket base at socket mouth Socket depthdDesign dimensioned1d2Limit deviation Limit deviation t1k1of socketbTypefTypefTypefType AfType BfPipe outside di
15、ameter as in DIN 16969ad A B A B A B max. min. min.16 15,3 15,5 13,3 8,0 20 19,3 19,5 5,000,6 14,5 10,0 25 24,1 24,4 16,0 12,5 32 31,0 31,3 18,1 16,0 40 38,9 39,3 0,7 20,5 20,0 50 48,9 49,3 23,5 25,0 63 61,7 62,2 6,000,8 27,4 31,5 75 72,7 72,9 74,0 73,2 8,006,001,0 30,0 31,0 37,5 90 87,4 87,4 88,8 8
16、7,8 107,001,2 33,0 35,5 45,0 110 106,8 106,5 108,5 107,1 108,001,4 37,0 41,5 55,0 aNominal size bThe mean inside diameter is calculated as the arithmetic mean of two measurements taken at right angles to each other on the same plane, at the socket base or mouth. cOvality is the difference between th
17、e greatest and smallest inside diameter, measured on the same plane. dFor types A and B, where d is 63 mm or less, t1= 0,3 d + 8,5 mm. For type A, where d is 75 mm or more, t = 0,2 d + 15 mm. For type B, where d is 75 mm or more, t = 0,3 d + 8,5 mm. eDesign dimensions kminare minimum values and shal
18、l be calculated using equations (1) to (3), which can also be used to calculate kminfor pipe sizes not covered in tables 1 to 3. fType A is for peeled pipe ends; type B is for unpeeled pipe ends, in accordance with the fitting manufacturers instructions. DIN 16831-2:2003-05 6 Table 2 Type A6)Tr2 bra
19、nch reduced 90 tee Dimensions in millimetres Mean inside diameter of socket Ovality Mean inside diameter of socket Ovality at socket base at socket mouth Limit deviation Limit deviation at socket base at socket mouth Limit deviation Limit deviation Socket depth Design dimensions Pipe outside diamete
20、r as in DIN 16969ad o in run at outlet Run Outlet Run Outlet dIdIIdId1d2d3d4t1t2k1k2max. max. min. min. min. min. 20 16 20 19,3 19,5 5,000,6 15,3 15,5 14,5 13,3 8,0 10,0 25 16 25 24,1 24,4 15,3 15,5 16,0 13,3 8,0 12,5 25 20 25 24,1 24,4 19,3 19,5 16,0 14,5 10,0 12,5 32 16 32 31,0 31,3 15,3 15,5 18,1
21、 13,3 8,0 16,0 32 20 32 31,0 31,3 19,3 19,5 5,000,6 18,1 14,5 10,0 16,0 32 25 32 31,0 31,3 24,1 24,4 6,000,7 18,1 16,0 12,5 16,0 40 16 40 38,9 39,3 15,3 15,5 20,5 13,3 8,0 20,0 40 20 40 38,9 39,3 19,3 19,5 5,000,6 20,5 14,5 10,0 20,0 40 25 40 38,9 39,3 24,1 24,4 20,5 16,0 12,5 20,0 40 32 40 38,9 39,
22、3 0,7 31,0 31,3 6,000,7 20,5 18,1 16,0 20,0 50 16 50 48,9 49,3 15,3 15,5 23,5 13,3 8,0 25,0 50 20 50 48,9 49,3 19,3 19,5 5,000,6 23,5 14,5 10,0 25,0 50 25 50 48,9 49,3 24,1 24,4 23,5 16,0 12,5 25,0 50 32 50 48,9 49,3 31,0 31,3 23,5 18,1 16,0 25,0 50 40 50 48,9 49,3 6,000,8 38,9 39,3 6,000,7 23,5 20,
23、5 20,0 25,0 aNominal size 6) Type A: for unpeeled pipe ends. DIN 16831-2:2003-05 7 Table 2 (concluded) Dimensions in millimetres Mean inside diameter of socket Ovality Mean inside diameter of socket Ovality at socket base at socket mouth Limit deviation Limit deviation at socket base at socket mouth
24、 Limit deviation Limit deviation Socket depth Design dimensions Pipe outside diameter as in DIN 16969ad o in run at outlet Run Outlet Run Outlet dIdIIdId1d2d3d4t1t2k1k2max. max. min. min. min. min. 63 16 63 61,7 62,2 15,3 15,5 27,4 13,3 8,0 31,5 63 20 63 61,7 62,2 19,3 19,5 5,000,6 27,4 14,5 10,0 31
25、,5 63 25 63 61,7 62,2 24,1 24,4 27,4 16,0 12,5 31,5 63 32 63 61,7 62,2 31,0 31,3 27,4 18,1 16,0 31,5 63 40 63 61,7 62,2 38,9 39,3 0,7 27,4 20,5 20,0 31,5 63 50 63 61,7 62,2 6,000,8 48,9 49,3 27,4 23,5 25,0 31,5 75 50 75 72,7 74,0 48,9 49,3 30,0 23,5 25,0 37,5 75 63 75 72,7 74,0 8,001,0 61,7 62,2 30,
26、0 27,4 31,5 37,5 90 63 90 87,4 88,8 61,7 62,2 6,000,8 33,0 27,4 31,5 45,0 90 75 90 87,4 88,8 101,2 72,7 74,0 33,0 30,0 37,5 45,0 110 75 110 106,8 108,5 72,7 74,0 8,001,0 37,0 30,0 37,5 55,0 110 90 110 106,8 108,5 2,101,4 87,4 88,8 101,2 37,0 33,0 45,0 55,0 aNominal size DIN 16831-2:2003-05 8 Table 3
27、 Type B7)Tr2 branch reduced 90 tee Dimensions in millimetres Mean inside diameter of socket Ovality Mean inside diameter of socket Ovality at socket base at socket mouth Limit deviation Limit deviation at socket base at socket mouth Limit deviation Limit deviation Socket depth Design dimensions Pipe
28、 outside diameter as in DIN 16969a d o in run at outlet Run Outlet Run Outlet dIdIIdId1d2d3d4t1t2k1k2max. max. min. min. min. min. 75 50 75 72,9 73,2 48,9 49,3 31,0 23,5 25,0 37,5 75 63 75 72,9 73,2 6,001,0 61,7 62,2 31,0 27,4 31,5 37,5 90 63 90 87,4 87,8 61,7 62,2 0,8 35,5 27,4 31,5 45,0 90 75 90 8
29、7,4 87,8 7,001,2 72,9 73,2 35,5 31,0 37,5 45,0 110 75 110 106,5 107,1 72,9 73,2 6,001,0 41,5 31,0 37,5 55,0 110 90 110 106,5 107,1 8,001,4 87,4 87,8 7,001,2 41,5 35,5 45,0 55,0 aNominal size 7) Type B: for peeled pipe ends, in accordance with manufacturers instructions. DIN 16831-2:2003-05 9 4 Marki
30、ng Marking shall include the minimum details given in table 4, and shall be printed or stamped on fittings so as to remain legible throughout their service life. NOTE The manufacturer shall not be liable if marking becomes illegible as a result of installation procedures, or of cleaning, or if fitti
31、ngs are painted, scratched or masked. Marking shall not cause any cracking or other damage which could affect the serviceability of the assemblies. If marking is printed on the assemblies, its colour shall be set off clearly against the background. Table 4 Required marking details Detail Mark Number
32、 of relevant standarda DIN 16831 Manufacturers name or trademark e.g. xyz Diameter of connecting pipe e.g. 32 SDRbas in DIN 16969 e.g. SDR 11 Material PB Type, with or without peelinga e.g. A Place and date of productionc caThis information may be applied directly to the fitting, or be on a label ap
33、plied to it or the packaging. bNominal standard dimension ratio or pipe series of the appropriate pipe as in DIN 16969. cThe details given may be coded and shall give the production period and site. Marking as in clause 4 shall be implemented for fittings which are not covered by other standards or
34、regulations for specific applications. DIN 16831-2:2003-05 10 Annex A (informative) Explanatory notes DIN 16831 is a seven-part series of basic standards which are the first German standards dealing with the dimensions and quality requirements for polybutene (PB) fittings. The standards were largely
35、 developed on the basis of existing standards on fittings made from other plastics. Each type of fitting is illustrated together with an equation used to calculate the design dimension, minimum value kmin, and the same equations can be used to calculate kminfor nominal sizes not covered in this stan
36、dard. DIN 16831-2:2003-05 11 Bibliography DIN EN 10204, Metallic products Types of inspection documents DIN EN ISO 1043-1, Plastics Symbols and abbreviated terms Part 1: Basic polymers and their special characteristics (ISO 1043-1:2001) ISO 161-1:1996, Thermoplastics pipes for the conveyance of fluids Nominal outside diameters and nominal pressures Part 1: Metric series ISO 4065:1996, Thermoplastics pipes Universal wall thickness table
