BS ISO 10838-2-2000 气体燃料供应用聚乙烯管道系统的机械配件.公称外径小于或等于63mm的管道用金属配件.pdf

BRITISH STANDARD BS ISO 10838-22000 Mechanical fittings for polyethylene piping systems for the supply of gaseous fuels Part2 Metal fittings for pipes of nominal outside diameter greater than 63mm ICS 75.200; 83.140.30 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Licensed Copy sheffieldun sheffieldun, na, Sun Nov 26 065637 GMT0000 2006, Uncontrolled Copy, c BSI BS ISO 10838-22000 This British Standard, having been prepared under the direction of the Sector Committee for Materials and Chemicals, was published under the authority of the Standards Committee and comes into effect on 15 August 2001 BSI 08-2001 ISBN 0 580 38148 X National foreword This British Standard reproduces verbatim ISO 10838-22000 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, Plastic Piping for pressure, which 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 or European publications referred to in this document may be found in the BSI Standards Catalogue under the section 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 application. 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 ined; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the ISO title page, pages ii to iv, pages 1 to 11 and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments Licensed Copy sheffieldun sheffieldun, na, Sun Nov 26 065637 GMT0000 2006, Uncontrolled Copy, c BSI w w w . b z f x w . c o m Reference number ISO 10838-22000E ISO 2000 INTERNATIONAL STANDARD ISO 10838-2 First edition 2000-06-15 Mechanical fittings for polyethylene piping systems for the supply of gaseous fuels Part 2 Metal fittings for pipes of nominal outside diameter greater than 63 mm Raccords mcaniques pour systmes de canalisation en polythylne destine la distribution de combustibles gazeux Partie 2 Raccords mtalliques pour tubes de diamtre extrieur nominal suprieur 63 mm Licensed Copy sheffieldun sheffieldun, na, Sun Nov 26 065637 GMT0000 2006, Uncontrolled Copy, c BSI w w w . b z f x w . c o m ISO 10838-22000E ii Licensed Copy sheffieldun sheffieldun, na, Sun Nov 26 065637 GMT0000 2006, Uncontrolled Copy, c BSI w w w . b z f x w . c o m ISO 10838-22000E ISO 0002 – All rights rsedevreiii ContentsPage Foreword.....................................................................................................................................................................iv 1Scope ..............................................................................................................................................................1 2Normative references....................................................................................................................................1 3Terms and definitions ...................................................................................................................................2 4Symbols and abbreviated terms ..................................................................................................................3 5Materials .........................................................................................................................................................4 5.1General............................................................................................................................................................4 5.2Metal components .........................................................................................................................................4 5.3Plastics materials...........................................................................................................................................4 5.4Elastomers......................................................................................................................................................5 5.5Other materials...............................................................................................................................................5 6Individual fittings...........................................................................................................................................5 6.1Design and construction...............................................................................................................................5 6.2Appearance ....................................................................................................................................................5 6.3Fittings with spigot ends ..............................................................................................................................6 6.4Fittings with electrofusion sockets..............................................................................................................6 6.5Threads...........................................................................................................................................................6 6.6Flanges ...........................................................................................................................................................6 6.7Dimensions and tolerances of metal components.....................................................................................6 6.8Dimensions and tolerances of PE components.........................................................................................6 6.9Minimum bore ................................................................................................................................................6 7Test pieces .....................................................................................................................................................6 8Test requirements..........................................................................................................................................6 8.1Leaktightness test .........................................................................................................................................6 8.2Leaktightness with temperature cycling.....................................................................................................7 8.3Leaktightness after tensile testing...............................................................................................................7 8.4Hydrostatic strength......................................................................................................................................7 9Test s..................................................................................................................................................7 9.1Leaktightness testing....................................................................................................................................7 9.2Leaktightness with temperature cycling.....................................................................................................7 9.3Leaktightness after tensile testing...............................................................................................................8 9.4Hydrostatic strength at 80 C .....................................................................................................................10 10Marking.........................................................................................................................................................11 10.1General..........................................................................................................................................................11 10.2Permanent marking for example by moulding or indent marking on the body of the fitting............11 10.3Permanent marking on the fitting or on a label........................................................................................11 11Packaging and storage ...............................................................................................................................11 Licensed Copy sheffieldun sheffieldun, na, Sun Nov 26 065637 GMT0000 2006, Uncontrolled Copy, c BSI w w w . b z f x w . c o m ISO 10838-22000E iv ISO 0002 – All rights rsedevre 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 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 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 3. 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 of the elements of this part of ISO 10838 may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. International Standard ISO 10838-2 was prepared by Technical Committee ISO/TC 138, Plastics pipes, fittings and valves for the transport of fluids, Subcommittee SC 4, Plastics pipes and fittings for the supply of gaseous fuels. ISO 10838 consists of the following parts, under the general title Mechanical fittings for polyethylene piping systems for the supply of gaseous fuels Part 1 Metal fittings for pipes of nominal outside diameter less than or equal to 63 mm Part 2 Metal fittings for pipes of nominal outside diameter greater than 63 mm Part 3 Thermoplastics fittings for pipes of nominal outside diameter less than or equal to 63 mm Licensed Copy sheffieldun sheffieldun, na, Sun Nov 26 065637 GMT0000 2006, Uncontrolled Copy, c BSI w w w . b z f x w . c o m INTERNATIONAL STANDARDISO 10838-22000E ISO 0002 – All rights rsedevre1 Mechanical fittings for polyethylene piping systems for the supply of gaseous fuels Part 2 Metal fittings for pipes of nominal outside diameter greater than 63 mm WARNING This part of ISO 10838 does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this part of ISO 10838 to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. 1Scope This part of ISO 10838 specifies requirements and test s for full-end-load-resistant mechanical pipe-jointing systems for connecting, to each other or to a metal pipe or fitting, polyethylene PE pipes, coning to ISO 4437, of nominal outside diameter greater than 63 mm. In addition, it specifies certain general properties of the material from which these fittings are made. This part of ISO 10838 specifies dimensional requirements for, and the perance of, such assemblies. It is applicable to mechanical fittings in which all load-bearing elements of the joint are metal. They are intended for use with PE pipes designed for the supply of gaseous fuels, these fittings producing either permanent joints or joints which can be dismantled. If intended for assembly with a metal pipe or fitting, such connections may include screw threads, compression joints, or flanged or welded connections. This part of ISO 10838 is applicable only to mechanical fittings with normal operating-temperature limits between 20 C and 40 C, unless otherwise agreed between interested parties. It is the purpose of this part of ISO 10838 to provide perance requirements that will ensure that mechanical pipe-jointing systems will provide full sealing and full restraint of the PE piping so that the PE piping will yield rather than pull out of the mechanical joint when subjected to tensile forces or pressure. 2Normative references The following normative documents contain provisions which, through reference in this text, constitute provisions of this part of ISO 10838. For dated references, subsequent amendments to, or revisions of, any of these publications do not apply. However, parties to agreements based on this part of ISO 10838 are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies. Members of ISO and IEC maintain registers of currently valid International Standards. ISO 11671996, Thermoplastics pipes for the conveyance of fluids Resistance to internal pressure Test . Licensed Copy sheffieldun sheffieldun, na, Sun Nov 26 065637 GMT0000 2006, Uncontrolled Copy, c BSI w w w . b z f x w . c o m ISO 10838-22000E 2 ISO 0002 – All rights rsedevre ISO 34581976, Assembled joints between fittings and polyethylene PE pressure pipes Test of leakproofness under internal pressure. ISO 40651996, Thermoplastics pipes Universal wall thickness table. ISO 44371997, Buried polyethylene PE pipes for the supply of gaseous fuels Metric series Specifications. ISO 64471983, Rubber seals Joint rings used for gas supply pipes and fittings Specification for material. ISO 7005-11992, Metallic flanges Part 1 Steel flanges. ISO 7005-21988, Metallic flanges Part 2 Cast iron flanges. ISO 7005-31988, Metallic flanges Part 3 Copper alloy and composite flanges. ISO 8085-11, Polyethylene fittings for use with polyethylene pipes for the supply of gaseous fuels Metric series Specifications Part 1 Fittings for socket fusion using heated tools. ISO 8085-21, Polyethylene fittings for use with polyethylene pipes for the supply of gaseous