1、 DEUTSCHE NORMMay 2003DIN 16831-3 ICS 23.040.60 Pipe fittings and joint assemblies for polybutene pressure pipes Type PB 125 Part 3: Dimensions of injection-moulded sockets and caps for socket welding Rohrverbindungen und Formstcke fr Druckrohrleitungen aus Polybuten (PB) PB 125 Teil 3: Muffen und K
2、appen aus Spritzguss fr Muffenschweiung, Mae Document comprises 7 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
3、Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany, has the exclusive right of sale for German Standards (DIN-Normen). English price group 6 www.din.de www.beuth.de !,k|n“09.06 9728975DIN 16831-3:2003-05 2 Contents Page Foreword2 1 Scope 2 2 Normative references 2 3 Dimensions and desig
4、nation3 4 Marking .5 Annex A (informative) Explanatory notes.6 Bibliography 7 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-moulded
5、1)polybutene (PB) sockets and caps 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 ref
6、erences This standard 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
7、these publications 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 Gen
8、eral quality requirements 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) “Injectio
9、n-moulded” is defined in DIN EN ISO 472. DIN 16831-3:2003-05 3 3 Dimensions and designation 3.1 General The designs shown in figures 1 and 2 are for illustrative purposes only; however, the dimensions shall be as in table 1. Tolerances shall be as specified in DIN 16901, corresponding to tolerance c
10、lass 160. 3.2 Type M1 sockets and type K1 caps Figure 1 Type M1 socket Figure 2 Type K1 cap 3.3 Designation Designation of a type M1 socket for socket welding, for use with SDR 11 series pipes with an outside diameter, d, of 25 mm: Socket DIN 16831 M1 A 25 11 Designation of a type K1 cap for socket
11、welding, for use with SDR 11 series pipes with an outside diameter, d, of 75 mm: Cap DIN 16831 K1 A 75 11 NOTE Fittings for pipe outside diameters of 16 mm d 63 mm shall be designated as type A fittings only. DIN 16831-3:2003-05 4 Table 1 Dimensions of type M1 equal socket and type K1 cap Dimensions
12、 in millimetres Mean inside diameter Ovalitycat socket base at socket mouth Socket depthdDesign dimension d1d2Limit deviation Limit deviation t1k1of socketbTypeeTypeeTypeeType AeType BeType M1 Pipe outside diameter as in DIN 16969ad A B A B A B max. min. min. 16 15,3 15,5 13,3 3,0 20 19,3 19,5 5,000
13、,6 14,5 3,0 25 24,1 24,4 16,0 3,0 32 31,0 31,3 18,1 3,0 40 38,9 39,3 0,7 20,5 3,0 50 48,9 49,3 23,5 3,0 63 61,7 62,2 6,000,8 27,4 3,0 75 72,7 72,9 74,0 73,2 8,006,001,0 30,0 31,0 4,0 90 87,4 87,4 88,8 87,8 107,001,2 33,0 35,5 5,0 110 106,8 106,5 108,5 107,1 108,001,4 37,0 41,5 5,0 aNominal size bThe
14、 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 the greatest and smallest inside diameter, measured on the same plane. dFor types A and B, where d is
15、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. eType A is for peeled pipe ends; type B is for unpeeled pipe ends, in accordance with the fitting manufacturers instructions. DIN 16831-3:2003-05 5 4
16、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 liable if marking becomes illegible as a result of installation procedures, or of cleaning, or if
17、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 colour shall be set off clearly against the background. Table 2 Required marking details Detail Mark N
18、umber 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 peelingae.g. A Place and date of productionccaThis information may be applied directly to the fitting, or be on a labe
19、l 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 site. Marking as in clause 4 shall be implemented for fittings which are not covered by other standards
20、 or regulations for specific applications. DIN 16831-3:2003-05 6 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 larg
21、ely developed on the basis of existing standards on fittings made from other plastics. DIN 16831-3:2003-05 7 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
