1、BRITISH STANDARD BS ISO 727-1: 2002 Fittings made from unplasticized poly(vinyl chloride) (PVC-U), chlorinated poly(vinyl chloride) (PVC-C) or acrylonitrile/butadiene/ styrene (ABS) with plain sockets for pipes under pressure Part 1: Metric series ICS 23.040.45 NO COPYING WITHOUT BSI PERMISSION EXCE
2、PT AS PERMITTED BY COPYRIGHT LAWBS ISO 727-1:2002 This British Standard, having been prepared under the direction of the Sector Policy and Strategy Committee for Materials and Chemicals, was published under the authority of the Standards Policy and Strategy Committee on 3 July 2002 BSI 3 July 2002 I
3、SBN 0 580 39935 4 National foreword This British Standard reproduces verbatim ISO 727-1:2002 and implements it as the UK national standard. The UK participation in its preparation was entrusted by Technical Committee PRI/88, Plastic Piping Systems to Subcommittee PRI/88/2, Pressure Piping Systems, w
4、hich has the responsibility to: A list of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references The British Standards which implement international publications referred to in this document may be found in the BSI Standards Catalogue under the s
5、ection entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct applicati
6、on. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monito
7、r related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, pages ii and iii, a blank page, pages 1 to 6, an inside back cover and a back cover. The BSI copyright date displayed in this document indic
8、ates when the document was last issued. Amendments issued since publication Amd. No. Date CommentsINTERNATIONAL STANDARD ISO 727-1 First edition 2002-05-01 Reference number ISO 727-1:2002(E) OSI 2002 Fittings made from unplasticized poly(vinyl chloride) (PVC-U), chlorinated poly(vinyl chloride) (PVC
9、-C) or acrylonitrile/butadiene/styrene (ABS) with plain sockets for pipes under pressure Part 1: Metric series Raccords en poly(chlorure de vinyle) non plastifi (PVC-U), en poly(chlorure de vinyle) chlor (PVC-C) ou en acrylonitrile/butadine/styrne (ABS), embotements lisses pour tubes sous pression P
10、artie 1: Srie mtriqueii ISO 727-1:2002(E)iii Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each memb
11、er body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Ele
12、ctrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 3. Draft International Standards adopted by the technical committees are circulated to the member bodies for votin
13、g. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this part of ISO 727 may be the subject of patent rights. ISO shall not be held responsible for identifying any or al
14、l such patent rights. International Standard ISO 727-1 was prepared by Technical Committee ISO/TC 138, Plastics pipes, fittings and valves for the transport of fluids, Subcommittee SC 2, Plastics pipes and fittings for water supplies. Together with ISO 727-2, this first edition of ISO 727-1 cancels
15、and replaces ISO 727:1985, which has been technically revised. ISO 727 consists of the following parts, under the general title Fittings made from unplasticized poly(vinyl chloride) (PVC-U), chlorinated poly(vinyl chloride) (PVC-C) or acrylonitrile/butadiene/styrene (ABS) with plain sockets for pipe
16、s under pressure: Part 1: Metric series Part 2: Inch-based seriesblankINTERNATIONAL STANDARD ISO 727-1:2002(E)1 Fittings made from unplasticized poly(vinyl chloride) (PVC-U), chlorinated poly(vinyl chloride) (PVC-C) or acrylonitrile/butadiene/styrene (ABS) with plain sockets for pipes under pressure
17、 Part 1: Metric series 1 Scope This part of ISO 727 specifies the dimensions of plain sockets (cylindrical and conical) in fittings made from unplasticized poly(vinyl chloride) (PVC-U), chlorinated poly(vinyl chloride) (PVC-C) or acrylonitrile/butadiene/styrene (ABS), intended for connecting by solv
18、ent cementing to pipes of the corresponding material for use under pressure. The resulting joint does not require mechanical anchorage. NOTE It is strongly recommended that the advice of the fittings manufacturer be sought in the selection of an appropriate type of solvent cement, depending upon whe
19、ther the cylindrical or conical type of socketed fitting is being used for a particular installation. 2 Normative reference The following normative document contains provisions which, through reference in this text, constitute provisions of this part of ISO 727. For dated references, subsequent amen
20、dments to, or revisions of, this publication do not apply. However, parties to agreements based on this part of ISO 727 are encouraged to investigate the possibility of applying the most recent edition of the normative document indicated below. For undated references, the latest edition of the norma
21、tive document referred to applies. Members of ISO and IEC maintain registers of currently valid International Standards. ISO 161-1:1996, Thermoplastics pipes for the conveyance of fluids Nominal outside diameters and nominal pressures Part 1: Metric series 3 Terms and definitions For the purposes of
22、 this part of ISO 727, the following terms and definitions apply. 3.1 cylindrical socket plain socket having a generally cylindrical form with similar root and mouth dimensions NOTE 1 In practice, such sockets are manufactured with a slight taper in order to assist in removing the moulded fitting fr
23、om the moulding tool (see clause 6). NOTE 2 The term parallel socket is used in some countries as a term equivalent to cylindrical socket. 3.2 conical socket plain socket having a designed taper opening up from root to mouth, and having less clearance than a cylindrical socket NOTE The term tapered
24、socket is used in some countries as a term equivalent to conical socket.ISO 727-1:2002(E) 2 3.3 mean inside diameter at mid-point of socket depth arithmetic mean of two diameters measured at right angles to each other at the mid-point of the socket depth 4 Socket length For cylindrical sockets, the
25、minimum socket length (see Figure 1) shall conform to Table 1. For conical sockets (see Figure 2), the minimum socket length shall conform to Table 2. a) Socket b) Pipe Figure 1 Dimensions of cylindrical sockets d im L LISO 727-1:2002(E)3 Table 1 Dimensions of cylindrical sockets Dimensions in milli
26、metres Nominal outside diameter Minimum socket length a Mean inside diameter at mid-point of socket depth Out-of-roundness b 10 12 10,1 10,3 0,25 12 12 12,1 12,3 0,25 16 14 16,1 16,3 0,25 20 16 20,1 20,3 0,25 25 18,5 25,1 25,3 0,25 32 22 32,1 32,3 0,25 40 26 40,1 40,3 0,25 50 31 50,1 50,3 0,3 63 37,
27、5 63,1 63,3 0,4 75 43,5 75,1 75,3 0,5 90 51 90,1 90,3 0,6 110 61 110,1 110,4 0,7 125 68,5 125,1 125,4 0,8 140 76 140,2 140,5 0,9 160 86 160,2 160,5 1 180 96 180,2 180,6 1,1 200 106 200,2 200,6 1,2 225 118,5 225,3 225,7 1,4 250 131 250,3 250,8 1,5 280 146 280,3 280,9 1,7 315 163,5 315,4 316 1,9 355 1
28、83,5 355,5 356,2 2,2 400 206 400,5 401,5 2,4 a The above-mentioned values for the minimum socket length related to cylindrical sockets made from PVC-U are calculated by the following equation: , with a minimum socket length of . Due to the shrinkage behaviour of cylindrical sockets made from PVC-C a
29、nd ABS, the socket lengths are calculated by the following equation: . b The tolerances for the out-of-roundness are rounded values obtained from those in ISO 11922-1:1997, grade M, by multiplying by 0,25. d n Ld im min. max. max. L= 0,5d n +6m m 1 2m m L= 0,5d n +5m mISO 727-1:2002(E) 4 a) Socket b
30、) Pipe Figure 2 Dimensions of conical sockets Table 2 Dimensions of conical sockets Dimensions in millimetres Nominal outside diameter Minimum socket length Mean inside diameter Out-of-roundness Socket mouth Socket root 12 12 12,25 12,45 11,9 12,1 0,25 16 16 16,25 16,45 15,9 16,1 0,25 20 20 20,25 20
31、,45 19,9 20,1 0,25 25 25 25,25 25,45 24,9 25,1 0,25 32 30 32,25 32,45 31,9 32,1 0,25 40 35 40,25 40,45 39,8 40,1 0,25 50 41 50,25 50,45 49,8 50,1 0,3 63 50 63,25 63,45 62,8 63,1 0,4 75 60 75,3 75,6 74,75 75,1 0,5 90 72 90,3 90,6 89,75 90,1 0,6 110 88 110,3 110,6 109,75 110,1 0,7 d n Ld s1 d s2 min.
32、max. min. max. max.ISO 727-1:2002(E)5 5 Socket inside diameter The mean inside diameter of a socket shall be in accordance with the requirements of Table 1 for cylindrical sockets or Table 2 for conical sockets, and is based on the dimensions for thermoplastics pipes included in ISO 161-1. 6 Taper o
33、f cylindrical sockets The maximum included angle of the socketed portion of a fitting shall not exceed the following values: : : : 7M a r k i n g The identification of the different types of plain socket (cylindrical and conical) shall be reflected in the minimum required marking for the relevant pr
34、oduct and shall be included in the corresponding product standard. d n 63 mm 0 4075 mm d n 315 mm 0 30355 mm d n 400 mm 0 15ISO 727-1:2002(E) 6 Bibliography 1 ISO 11922-1:1997, Thermoplastics pipes for the conveyance of fluids Dimensions and tolerances Part 1: Metric seriesblankBS ISO 727-1: 2002 BS
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