DIN ISO 16486-4-2016 Plastics piping systems for the supply of gaseous fuels - Unplasticized polyamide (PA-U) piping systems with fusion jointing and mechanical jointing - Part 4 V.pdf
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1、November 2016 English price group 12No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 23.040.01; 75.200!%YV“2585451ww
2、w.din.deDIN ISO 16486-4Plastics piping systems for the supply of gaseous fuels Unplasticized polyamide (PAU) piping systems with fusion jointing and mechanical jointing Part 4: Valves (ISO 164864:2016),English translation of DIN ISO 16486-4:2016-11KunststoffRohrleitungssysteme fr die Gasversorgung R
3、ohrleitungssysteme aus weichmacherfreiem Polyamid (PAU) mit Schweiverbindungen und mechanischen Verbindungen Teil 4: Armaturen (ISO 164864:2016),Englische bersetzung von DIN ISO 16486-4:2016-11Systmes de canalisations en matires plastiques pour la distribution de combustibles gazeux Systmes de canal
4、isations en polyamide non plastifi (PAU) avec assemblages par soudage etassemblages mcaniques Partie 4: Robinets (ISO 164864:2016),Traduction anglaise de DIN ISO 16486-4:2016-11www.beuth.deDocument comprises 23 pagesDTranslation by DIN-Sprachendienst.In case of doubt, the German-language original sh
5、all be considered authoritative.10.16 A comma is used as the decimal marker. Introduction 61Scope. 72 Normative references 73 Terms and definitions . 84 Material 94.1 PA-U compound 94.2 Material for non-unplasticized polyamide parts . 94.2.1 General 94.2.2 Metal parts . 104.2.3 Elastomers 104.2.4 Ot
6、her materials 105 General characteristics .105.1 Appearance of the valve . 105.2 Colour . 105.3 Design 105.3.1 General. 105.3.2 Valve body . 105.3.3 Operating device . 115.3.4 Seals . 115.4 Fusion compatibility . 116 Geometrical characteristics .116.1 General 116.2 Measurement of dimensions 116.3 Di
7、mensions of spigot ends for valves . 116.4 Dimensions of valves with electrofusion sockets . 116.5 Dimensions of the operating device 127 Mechanical characteristics of assembled valves 127.1 General 127.2 Conditioning . 127.3 Requirements 128 Physical characteristics 178.1 Conditioning .178.2 Requir
8、ement 179 Performance requirements 1710 Marking .1810.1 General 1810.2 Minimum required marking of valves 1810.3 Additional information required on valve or label .1810.4 Fusion system recognition .18Contents PageNational foreword 4National Annex NA (informative) Bibliography 52DIN ISO 16486-4:2016-
9、11 11 Packaging 19Annex A (normative) Determination of the leaktightness of seat and packing 20Annex B (normative) Test method for leaktightness and ease of operation after tensile loading .21Bibliography .233DIN ISO 16486-4:2016-11 National foreword This document (ISO 16486-4:2016) has been prepare
10、d by Technical Committee ISO/TC 138 “Plastics pipes, fittings and valves for the transport of fluids, Subcommittee SC 7 “Valves and auxiliary equipment of plastics materials. The responsible German body involved in its preparation was DIN-Normenausschuss Kunststoffe (DIN Standards Committee Plastics
11、), Working Committee NA 054-05-08 AA Kunststoff-Rohrleitungssysteme fr die Gasversorgung. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. DIN shall not be held responsible for identifying any or all such patent rights. DIN ISO 164
12、86 consists of the following parts, under the general title: Plastics piping systems for the supply of gaseous fuels Unplasticized polyamide (PA-U) piping systems with fusion jointing and mechanical jointing: Part 1: General Part 2: Pipes Part 3: Fittings Part 4: Valves (the present standard) Part 5
13、: Fitness for purpose of the system Part 6: Code of practice for design, handling and installation For the International Standards referred to in this document there are no national standards available unless they have been published as DIN EN ISO standards with the same number, except for those bel
14、ow which correspond as follows: ISO 16486-1 DIN ISO 16486-1 ISO 16486-2 DIN ISO 16486-2 ISO 16486-3 DIN ISO 16486-3 ISO 16486-5 DIN ISO 16486-5 ISO 16486-6 DIN ISO 16486-6 4DIN ISO 16486-4:2016-11 National Annex NA (informative) Bibliography DIN ISO 16486-1, Plastics piping systems for the supply of
15、 gaseous fuels Unplasticized polyamide (PA-U) piping systems with fusion jointing and mechanical jointing Part 1: General DIN ISO 16486-2, Plastics piping systems for the supply of gaseous fuels Unplasticized polyamide (PA-U) piping systems with fusion jointing and mechanical jointing Part 2: Pipes
16、DIN ISO 16486-3, Plastics piping systems for the supply of gaseous fuels Unplasticized polyamide (PA-U) piping systems with fusion jointing and mechanical jointing Part 3: Fittings DIN ISO 16486-5, Plastics piping systems for the supply of gaseous fuels Unplasticized polyamide (PA-U) piping systems
17、with fusion jointing and mechanical jointing Part 5: Fitness for purpose of the system DIN ISO 16486-6, Plastics piping systems for the supply of gaseous fuels Unplasticized polyamide (PA-U) piping systems with fusion jointing and mechanical jointing Part 6: Code of practice for design, handling and
18、 installation 5DIN ISO 16486-4:2016-11 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.Fo
19、r technical and safety reasons, 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 shall not be used for jointing for high pressure piping sy
20、stems.So for the time being, the standardization 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 solv
21、ent cement jointing and the other (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
22、 systems.6DIN ISO 16486-4:2016-11 Plastics piping systems for the supply of gaseous fuels Unplasticized polyamide (PA-U) piping systems with fusion jointing and mechanical jointing Part 4: Valves1 ScopeThis part of ISO 16486 specifies the characteristics of valves made from unplasticized polyamide (
23、PA-U) in accordance with ISO 16486-1, intended to be buried and used for the supply of gaseous fuels.Valves made from other material than unplasticized polyamide designed for the supply of gaseous fuels conforming to the relevant standards are permitted to be used in PA-U piping system according to
24、ISO 16486 provided they have relevant PA-U connections for butt fusion or electrofusion ends (see ISO 16486-3). The component, i.e. the complete valve, shall fulfil the requirements of this part of ISO 16486.It also specifies the test parameters for the test methods referred to in this part of ISO 1
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