1、 DEUTSCHE NORMMay 2003DIN 16831-1 ICS 23.040.45 Pipe fittings and joint assemblies for polybutene pressure pipes Type PB 125 Part 1: Dimensions of injection-moulded elbows for socket welding Rohrverbindungen und Formstcke fr Druckrohrleitungen aus Polybuten (PB) PB 125 Teil 1: Winkel aus Spritzguss
2、fr Muffenschweiung, Mae Document comprises 8 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|l“09.06 9728973DIN 16831-1:2003-05 2 Contents Page Foreword. 2 1 Scope . 2 2 Normative references . 2 3 Dimensions and designation. 3 4 Mar
4、king 6 Anhang A (informative) Explanatory notes . 7 Bibliography . 8 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)polybut
5、ene (PB) elbows 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 standa
6、rd incorporates, 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 publication
7、s apply 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 requ
8、irements 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 def
9、ined in DIN EN ISO 472. DIN 16831-1:2003-05 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 table 1. The limit deviation for angles shall be 2 and tolerances shall be as specified in DIN 16901,
10、corresponding to tolerance class 160. 3.2 Elbows (types W1, W1S, W2, W2S) Figure 1 Type W1 90 elbow 2min1dk = (1)Figure 2 Type W2 45 elbow 2tan2min1=dk (2)Figure 3 Type W1S 90 elbow with spigot 2min1dk = (3)32min22,02dtdk += (4)DIN 16831-1:2003-05 4 Figure 4 Type W2S 45 elbow with spigot 2min1dk = (
11、5)32min22,02tan2dtdk +=(6)3.3 Designation Designation of a type A W1 90 elbow for socket welding, for use with SDR 11 series pipes with an outside diameter, d, of 25 mm: Elbow DIN 16831 W1 A 25 11 Designation of a type A W1S 90 elbow with spigot for socket welding, for use with SDR 11 series pipes w
12、ith an outside diameter, d, of 25 mm: Elbow DIN 16831 W1S A 25 11 Designation of a type A W2 45 elbow for socket welding, for use with SDR 11 series pipes with an outside diameter, d, of 75 mm: Elbow DIN 16831 W2 A 75 11 Designation of a type A W2S 45 elbow with spigot for socket welding, for use wi
13、th SDR 11 series pipes with an outside diameter, d, of 75 mm: Elbow DIN 16831 W2S A 75 11 NOTE Type W1 and W2 fittings for pipe outside diameters of 16 mm d 63 mm shall be designated as type A fittings only. DIN 16831-1:2003-05 5 Table 1 Dimensions of type W1, W2, W1S and W2S elbows Dimensions in mi
14、llimetres Mean inside diameter OvalitycMean outside diameter OvalitycSocket depthd Spigot lengthdDesign dimensionse at socket base at socket mouth Limit deviation Limit deviation Limit deviation Limit deviation of sleeveaof spigotsbt1t2k1k2d1d2d3TypefTypefTypes TypefTypefTypefTypefA B A B W1 W1S W2
15、W2S W1S W2S Pipe outside diameter as in DIN 16969 d A B A B A B max. A B max. min. min. min. min. min. min. min. min. 16 15,3 15,5 16,0 0,3 13,3 13,3 8,0 3,3 24,5 19,8 20 19,3 19,5 5,000,6 20,0 0,4 14,5 14,5 10, 4,1 28, 22,6 25 24,1 24,4 25,0 03,0+3,000,5 16,0 16,0 12,5 5,2 33,5 26,2 32 31,0 31,3 32
16、, 0,7 18,1 18,1 16,0 6,6 40, 31,1 40 38,9 39,0,7 40,0 0,8 20,5 20,5 20, 8,3 48,5 36,8 50 48,9 49,3 50,0 1,0 23,5 23,5 25,0 10,4 58,5 43,9 63 61,7 62,2 6,000,8 63,0 05,0+5,001,2 27,4 27,4 31,5 13,0 71,5 53,0 75 72,7 72,9 74,0 73,2 8,006,001,0 75,0 1,5 30,0 31,0 30,0 31,0 37,5 15,5 82,5g60,5g90 87,4 8
17、7,4 88,8 87,8 107,001,2 90,0 07,0+7,001,9 33,0 35,5 33,0 35,5 45,0 18,6 96,0g69,6g110 106,8 106,5 108,5 107,1 108,001,4 110,0 01+102,2 37,0 41,5 37,0 41,5 55,0 22,8 114,0g81,8gaThe mean inside diameter is calculated as the arithmetic mean of two measurements taken at right angles to each other on th
18、e same plane, at the socket base or mouth. bThe mean outside diameter of the spigot is calculated as the arithmetic mean of two measurements taken at right angles to each other at the mid-depth of the spigot. cOvality is the difference between the greatest and smallest inside diameter, measured on t
19、he 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, t1= 0,2 d + 15 mm. For type B, where d is 75 mm or more, t1= 0,3 d + 8,5 mm. eDesign dimensions kminare minimum dimensions, calculated using equations (1) to (6). For nominal sizes
20、not included in table 1, kminmay also be calculated using these equations. fType A is for peeled pipe ends; type B is for unpeeled pipe ends, in accordance with the fitting manufacturers instructions. gValues correspond to design dimensions k2,minof type A; the length difference to k2,minof typeB co
21、rresponds to the difference between the spigot length t2of types A and B. DIN 16831-1:2003-05 6 4 Marking Marking shall include the minimum details given in table 2, and shall be printed or stamped on fittings so as to remain legible throughout their service life. NOTE The manufacturer shall not be
22、liable if marking becomes illegible as a result of installation procedures, or of cleaning, or if fittings 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 colo
23、ur shall be set off clearly against the background. Table 2 Required marking details Detail Mark Number of relevant standarda DIN 16831 Manufacturers name or trademark e.g. xyz Diameter of connecting pipe e.g. 32 SDRb as in DIN 16969 e.g. SDR 11 Material PB Type, with or without peelinga e.g. A Plac
24、e and date of productionc caThis information may be applied directly to the fitting, or be on a label applied 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 sit
25、e.Marking as in clause 4 shall be implemented for fittings which are not covered by other standards or regulations for specific applications. DIN 16831-1:2003-05 7 Anhang A (informative) Explanatory notes DIN 16831 is a seven-part series of basic standards which are the first German standards dealin
26、g with the dimensions and quality requirements for polybutene (PB) fittings. The standards were largely 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 val
27、ue kmin, and the same equations can be used to calculate kminfor nominal sizes not covered in this standard. DIN 16831-1:2003-05 8 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
