1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS ISO 17467-3:2012Plastics piping systems for the supply of gaseous fuels Unplasticized polyamide (PA-U) piping systems jointed by solvent cementPart 3: FittingsBS ISO 17467-3:2
2、012 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of ISO 17467-3:2012. The UK participation in its preparation was entrusted to TechnicalCommittee PRI/88/2, Plastics piping for pressure applications. A list of organizations represented on this committee can be obtai
3、ned on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2012. Published by BSI Standards Limited 2012.ISBN 978 0 580 75747 1 ICS 23.040.20; 23.040.45
4、Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 November 2012.Amendments issued since publicationDate T e x t a f f e c t e dBS ISO 17467-3:2012 ISO 2012Plast
5、ics piping systems for the supply of gaseous fuels Unplasticized polyamide (PA-U) piping systems jointed by solvent cement Part 3: FittingsSystmes de canalisations en matires plastiques pour la distribution de combustibles gazeux Systmes de canalisations en polyamide non plastifi (PA-U) avec assembl
6、age par collage Partie 3: RaccordsINTERNATIONAL STANDARDISO17467-3First edition2012-10-15Reference numberISO 17467-3:2012(E)BS ISO 17467-3:2012ISO 17467-3:2012(E)ii ISO 2012 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2012All rights reserved. Unless otherwise specified, no part of this publi
7、cation may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISOs member body in the country of the requester.ISO copyright officeCase postale 56 CH-1211 Geneva
8、20Tel. + 41 22 749 01 11Fax + 41 22 749 09 47E-mail copyrightiso.orgWeb www.iso.orgPublished in SwitzerlandBS ISO 17467-3:2012ISO 17467-3:2012(E) ISO 2012 All rights reserved iiiContents PageForeword ivIntroduction v1 Scope . 12 Normative references 13 Terms and definitions . 24 Material 25 Appearan
9、ce 26 Geometrical characteristics 26.1 Measurement of dimensions . 26.2 Dimensions of solvent cement socket fittings 26.3 Dimensions of solvent cement spigot fittings 26.4 Dimensions of solvent cement saddle fittings . 47 Mechanical characteristics 47.1 Conditioning 47.2 Requirements . 48 Physical c
10、haracteristics . 58.1 Conditioning 58.2 Requirement . 59 Marking 69.1 General . 69.2 Minimum required marking of fittings 69.3 Additional information required on fittings or labels . 6BS ISO 17467-3:2012ISO 17467-3:2012(E)ForewordISO (the International Organization for Standardization) is a worldwid
11、e 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
12、 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 acc
13、ordance with the rules given in the ISO/IEC Directives, Part 2.The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requi
14、res 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 document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights.ISO 17467-3 was prepared by Technica
15、l 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.This first edition of ISO 17467-3 cancels and replaces the first edition of ISO 15439-3:2007, which has been technically revised.ISO
16、 17467 consists of the following parts, under the general title Plastics piping systems for the supply of gaseous fuels Unplasticized polyamide (PA-U) piping systems jointed by solvent cement : Part 1: General Part 2: Pipes Part 3: Fittingsiv ISO 2012 All rights reservedBS ISO 17467-3:2012ISO 17467-
17、3:2012(E)IntroductionThin wall thickness unplasticized polyamide (PA-U) pipes and solvent cement joints are used typically for low pressures, while thicker wall thickness pipes and butt fusion, electrofusion or mechanical joints are typically used for high pressures.For technical and safety reasons,
18、 it is not possible to mix the components of the two types of piping system (thin wall thickness pipes cannot be jointed by butt fusion or mechanical joints and vice versa). In particular, solvent cement joints must not be used for jointing for high pressure piping systems.So for the time being, the
19、 standardisation programme dealing with unplasticized polyamide (PA-U) piping systems for the supply of gaseous fuels is split into two series of International Standards, with one series (ISO 17467) covering piping systems the components of which are connected by solvent cement jointing and the othe
20、r (ISO 16486) the components of which are connected by fusion jointing and/or mechanical jointing. When more experience will be gained from the field, it might be reasonable to merge ISO 17467 series and ISO 16486 series in one single series applicable to PA-U piping systems.A similar series (ISO 17
21、135) of International Standards for fusion and mechanically jointed plasticized polyamide (PA-P) piping systems is in preparation. ISO 2012 All rights reserved vBS ISO 17467-3:2012BS ISO 17467-3:2012Plastics piping systems for the supply of gaseous fuels Unplasticized polyamide (PA-U) piping systems
22、 jointed by solvent cement Part 3: Fittings1 ScopeThis part of ISO 17467 specifies the physical and mechanical characteristics of fittings made from unplasticized polyamide (PA-U) in accordance with ISO 17467-1, intended to be buried and used for the supply of gaseous fuels for maximum operating pre
23、ssure up to and including 4 bar.It also specifies the test parameters for the test methods to which it refers.This part of ISO 17467 also lays down requirements for dimensions and the marking of fittings.In conjunction with ISO 17467-1 and ISO 17467-2, this part of ISO 17467 is applicable to PA-U fi
24、ttings, their joints and to joints with components of PA-U.These fittings can be of the following types solvent cement socket fittings; solvent cement spigot fittings; solvent cement saddle fittings.2 Normative referencesThe following referenced documents are indispensable for the application of thi
25、s document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO 291, Plastics Standard atmospheres for conditioning and testingISO 307, Plastics Polyamides Determination of viscosity number
26、ISO 1167-1, Thermoplastics pipes, fittings and assemblies for the conveyance of fluids Determination of the resistance to internal pressure Part 1: General methodISO 1167-4, Thermoplastics pipes, fittings and assemblies for the conveyance of fluids Determination of the resistance to internal pressur
27、e Part 4: Preparation of assembliesISO 3126, Plastics piping systems Plastics components Determination of dimensionsISO 17467-1:2012, Plastics piping systems for the supply of gaseous fuels Unplasticized polyamide (PA-U) piping systems jointed by solvent cement Part 1: GeneralISO 17467-2:2012, Plast
28、ics piping systems for the supply of gaseous fuels Unplasticized polyamide (PA-U) piping systems jointed by solvent cement Part 2: PipesINTERNATIONAL STANDARD ISO 17467-3:2012(E) ISO 2012 All rights reserved 1BS ISO 17467-3:2012ISO 17467-3:2012(E)3 Terms and definitionsFor the purposes of this docum
29、ent, the terms, definitions, symbols and abbreviated terms given in ISO 17467-1 apply.4 MaterialThe fittings shall be made from virgin PA-U material. Own and external reprocessable materials and recyclable material shall not be used.The compound from which the fittings are made shall conform to ISO
30、17467-1. It may be unpigmented.5 AppearanceWhen viewed without magnification, the internal and external surfaces of the fitting shall be smooth, clean and free from scoring, cavities and other surface defects to an extent that would prevent conformity of the fitting to this part of ISO 17467.6 Geome
31、trical characteristics6.1 Measurement of dimensionsThe dimensions of the fittings shall be measured in accordance with ISO 3126. In case of dispute, the measurement of dimensions shall be made not less than 24 h after manufacture after being conditioned for at least 4 h at (23 2) C.6.2 Dimensions of
32、 solvent cement socket fittings6.2.1 Diameters and lengths of socketsWhen measured in accordance with 6.1, the diameters, lengths and tapers of sockets (see Figure 1) shall be as specified in Table 1.6.2.2 Wall thicknessesThe minimum wall thickness eminof the fittings shall be as specified in Table
33、1.6.3 Dimensions of solvent cement spigot fittings6.3.1 Diameters and lengths of the spigotsWhen measured in accordance with 6.1, the spigot lengths shall conform to the minimum socket length, L, as specified in Table 1.The mean outside diameters of the spigot ends, dem, shall be as specified in ISO
34、 17467-2:2012, Table 1.6.3.2 Wall thicknessesThe minimum wall thicknesses eminof the fittings shall be as specified in Table 1.2 ISO 2012 All rights reservedBS ISO 17467-3:2012ISO 17467-3:2012(E)KeyDiis the mean inside diameter measured in the plane of the socket mouth;Dris the inside diameter measu
35、red in the plane of the socket root;L is the length of the socket;T is the wall thickness of the body of the fitting.Figure 1 Socket dimensions ISO 2012 All rights reserved 3BS ISO 17467-3:2012ISO 17467-3:2012(E)Table 1 Dimensions of socketsDimensions in millimetresNominal outside diameterMean mouth
36、 diameterSocket length, minimumWall thickness, minimumTaper, maxi-mumadnDi,minDi,maxLmineminDi Dr12 16 18 20 23 25 32 40 50 63 75 90 110 125 140 160 180 200 225 25011,6 15,6 17,6 19,6 22,6 24,6 31,6 39,6 49,6 62,5 74,5 89,4 109,4 124,4 139,4 159,3 179,3 199,2 224,2 249,111,9 15,9 17,9 19,9 22,9 24,9
37、 31,9 39,9 49,9 62,9 74,9 89,9 109,9 124,9 139,9 159,9 179,9 199,9 224,9 249,930 30 30 32 32 32 32 40 50 63 75 90 110 125 140 160 180 200 225 2502,5 2,5 2,5 2,5 2,5 2,5 3,0 3,0 4,2 4,6 5,0 5,5 6,0 7,5 8,1 8,9 9,7 10,5 11,5 12,50,2 0,2 0,2 0,2 0,2 0,2 0,3 0,3 0,4 0,4 0,6 0,6 0,7 0,7 0,8 0,9 1,0 1,1 1
38、,2 1,3a The socket root diameter, Dr, shall not be greater than the socket mouth diameter, Di, i.e. taper is not mandatory in the socket.6.4 Dimensions of solvent cement saddle fittingsThe minimum wall thicknesses eminof the saddle fittings shall be as specified in Table 1. Other dimensions are depe
39、ndent on the saddle design geometry and shall be specified by the manufacturer.7 Mechanical characteristics7.1 ConditioningUnless otherwise specified by the applicable test method, the test pieces shall be conditioned for at least 16 h at 23 C and 50 % relative humidity in accordance with ISO 291 be
40、fore testing in accordance with Table 2.7.2 RequirementsWhen tested in accordance with the test methods as specified in Table 2 using the indicated parameters, the fitting shall have mechanical characteristics conforming to the requirements given in Table 2.Test specimens shall consist of a solvent-
41、cement pipe-to-fitting assembly prepared in accordance with the manufacturers instructions. The setting time of the solvent cement shall be a minimum of 24 h at normal laboratory atmosphere.4 ISO 2012 All rights reservedBS ISO 17467-3:2012ISO 17467-3:2012(E)Table 2 Mechanical characteristicsCharacte
42、ristic Requirements Test parameters Test methodHydrostatic strength (20 C, 1 000 h)No failure during the test period of any test pieceEnd capsOrientationConditioning timeType of testCircumferential (hoop) stress:PA-U 11 160 and PA-U 12 160aPA-U 11 180 and PA-U 12 180aTest periodTest temperatureType
43、a)Free6 hWater-in-water19,0 MPa20,0 MPa1 000 h20 CISO 1167-1 ISO 1167-4Hydrostatic strength (80 C, 165 h)No failure during the test period of any test pieceEnd capsOrientationConditioning timeType of testCircumferential (hoop) stressPA-U 11 160 and PA-U 12 160aPA-U 11 180 and PA-U 12 180aTest period
44、Test temperatureType a)Free6 hWater-in-water10,0 MPa11,5 MPa165 h80 CISO 1167-1 ISO 1167-4aFor material classification and designation, see ISO 17467-1:2012, 5.3.8 Physical characteristics8.1 ConditioningUnless otherwise specified by the applicable test method, the test pieces shall be conditioned f
45、or at least 16 h at 23 C and 50 % relative humidity in accordance with ISO 291 before testing in accordance with Table 3.8.2 RequirementWhen tested in accordance with the test method as specified in Table 3 using the indicated parameters, the fittings shall have physical characteristics conforming t
46、o the requirement given in Table 3. ISO 2012 All rights reserved 5BS ISO 17467-3:2012ISO 17467-3:2012(E)Table 3 Physical characteristicsCharacteristic Requirement Test parameters Test methodViscosity number 180 ml/g Solvent m-Cresol ISO 3079 Marking9.1 GeneralAll fittings shall be permanently and le
47、gibly marked in such a way that the marking does not initiate cracks or other types of failure.If printing is used, the colour of the printed information shall differ from the basic colour of the product.The marking shall be such that it is legible without magnification.NOTE The manufacturer is not
48、responsible for any marking that is illegible due to actions caused during installation and use such as painting, scratching, covering of components or using detergents etc on the components unless agreed or specified by the manufacturer.There shall be no marking over the minimum spigot length of th
49、e fitting.9.2 Minimum required marking of fittingsThe minimum required marking shall conform to Table 4.Table 4 Minimum required marking on the fittingAspects Marking or symbolManufacturers name or trademark Nominal diameter Manufacturers information Material and designationName or code e.g. 110 A e.g. PA-U 11 160NOTE For providing traceability the following details shall be given: the production period, year and month, in figures or in code; a name or code for the production si
