BS ISO 727-2-2005 Fittings made from unplasticized poly(vinyl chloride) (PVC-U) chlorinated poly(vinyl chloride) (PVC-C) or acrylonitrile butadiene styrene (ABS) with plain sockets.pdf
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1、BRITISH STANDARDBS ISO 727-2:2005Fittings made from unplasticizedpoly(vinyl chloride) (PVC-U), chlorinated poly(vinyl chloride) (PVC-C) or acrylonitrile/butadiene/styrene (ABS) with plain sockets for pipes under pressure Part 2: Inch-based seriesICS 23.040.45g49g50g3g38g50g51g60g44g49g42g3g58g44g55g
2、43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS ISO 727-2:2005This British Standard was published under the authority of the Standards Policy and Strategy Committee on 2 August 2005 BSI
3、2 August 2005ISBN 0 580 46232 3National forewordThis British Standard reproduces verbatim ISO 727-2:2005 and implements it as the UK national standard. It supersedes BS ISO 727-2:2002 which is withdrawn.The UK participation in its preparation was entrusted by Technical Committee PRI/88, Plastics pip
4、ing systems, to Subcommittee PRI/88/2, Plastics piping for pressure applications, which has the responsibility to: aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep UK interests inf
5、ormed; monitor related international and European developments and promulgate them in the UK.A list of organizations represented on this subcommittee can be obtained on request to its secretary.Cross-referencesThe British Standards which implement international publications referred to in this docum
6、ent may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online.This publication does not purport to include all the necessary provisions of a contract. U
7、sers are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations.Summary of pagesThis document comprises a front cover, an inside front cover, the ISO title page, pages ii and iii, a blank page, pages 1 to 7 and a back cov
8、er.The BSI copyright notice displayed in this document indicates when the document was last issued.Amendments issued since publicationAmd. No. Date CommentsReference numberISO 727-2:2005(E)INTERNATIONAL STANDARDISO727-2Second edition2005-06-01Fittings made from unplasticized poly(vinyl chloride) (PV
9、C-U), chlorinated poly(vinyl chloride) (PVC-C) or acrylonitrile/butadiene/styrene (ABS) with plain sockets for pipes under pressure Part 2: Inch-based 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)
10、, embotements lisses pour tubes sous pression Partie 2: Srie base sur les inches BS ISO 727-2:2005iiiiiForeword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normal
11、ly carried out through ISO technical committees. Each member 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
12、 work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare I
13、nternational Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. 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 o
14、f the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 727-2 was prepared by Technical Committee ISO/TC 138, Plastics pipes, fittings and valves for the transport of fluids, Subcommittee SC 2, Plastics
15、 pipes and fittings for water supplies.This second edition cancels and replaces the first edition (ISO 727-2:2002), 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(vin
16、yl chloride) (PVC-C) or acrylonitrile/butadiene/styrene (ABS) with plain sockets for pipes under pressure: Part 1: Metric series Part 2: Inch-based series BS ISO 727-2:2005blank1Fittings made from unplasticized poly(vinyl chloride) (PVC-U), chlorinated poly(vinyl chloride) (PVC-C) or acrylonitrile/b
17、utadiene/styrene (ABS) with plain sockets for pipes under pressure Part 2: Inch-based series IMPORTANT It is strongly recommended that the advice of the fittings manufacturer be sought in the selection of an appropriate type of solvent cement used to connect sockets to pipes, depending upon whether
18、the cylindrical or conical type of socketed fitting is being used for a particular installation.1 Scope This part of ISO 727 specifies the dimensions, in millimetres, of plain sockets (cylindrical and conical), for the inch-based pipe series, in fittings made from unplasticized poly(vinyl chloride)
19、(PVC-U), chlorinated poly(vinyl chloride) (PVC-C) or acrylonitrile/butadiene/styrene (ABS), intended for connecting by solvent cementing to pipes of the corresponding material for use under pressure. The resulting joint does not require mechanical anchorage. 2 Normative references The following refe
20、renced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 161-2:1996, Thermoplastics pipes for the conveyance of fluids N
21、ominal outside diameters and nominal pressures Part 2: Inch-based series3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1cylindrical socket parallel socket plain socket having a generally cylindrical form with similar root and mouth dimensions
22、NOTE In practice, such sockets are manufactured with a slight taper in order to assist in removing the moulded fitting from the moulding tool (see 4.1). BS ISO 727-2:2005BS ISO 727-2:200523.2conical socket tapered socket plain socket having a designed taper opening up from root to mouth, and having
23、less clearance than acylindrical socket 3.3mean inside diameter at mid-point of socket depth dimarithmetic mean of two diameters measured at right angles to each other at the mid-point of the socket depth 4 Socket dimensions 4.1 Cylindrical socketsCylindrical sockets (see Figure 1) shall conform to
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