1、BSI Standards PublicationBS ISO 12617:2015Incorporating corrigendum February 2016BS ISO 12617:2015Road vehicles Liquefiednatural gas (LNG) refuellingconnector 3,1 MPa connectorBS ISO 12617:2015 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of ISO 12617:2015.The UK p
2、articipation in its preparation was entrusted to Technical Committee GSE/40, Gas supply equipment for natural gas vehicles.A list of organizations represented on this committee can be obtainedon request to its secretary.This publication does not purport to include all the necessary provisionsof a co
3、ntract. Users are responsible for its correct application. The British Standards Institution 2016.Published by BSI Standards Limited 2016ISBN 978 0 580 93407 0ICS 43.060.40Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the a
4、uthority of the StandardsPolicy and Strategy Committee on 31 March 2015.Amendments/corrigenda issued since publicationDate Text affected29 February 2016 Implementation of ISO corrected text 15 January 2016: Figure 1 corrected ISO 2015Road vehicles Liquefied natural gas (LNG) refuelling connector 3,1
5、 MPa connectorVhicules routiers Connecteur pour le remplissage de gaz naturel liqufi (GNL) Connect eur 3,1 MPaINTERNATIONAL STANDARDISO12617First edition2015-03-15Reference numberISO 12617:2015(E)Corrected version2016-01-15ISO 12617:2015(E)ii ISO 2015 All rights reservedCOPYRIGHT PROTECTED DOCUMENT
6、ISO 2015, Published in SwitzerlandAll rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permi
7、ssion. Permission can be requested from either ISO at the address below or ISOs member body in the country of the requester.ISO copyright officeCh. de Blandonnet 8 CP 401CH-1214 Vernier, Geneva, SwitzerlandTel. +41 22 749 01 11Fax +41 22 749 09 47copyrightiso.orgwww.iso.orgBS ISO 12617:2015ISO 12617
8、:2015(E)Foreword v1 Scope .12 Normative references 13 Terms and definitions .14 General construction requirements .34.1 General . 34.2 LNG refuelling nozzles 34.3 LNG nozzles and receptacles. 34.4 Pressure rating 44.4.1 Working pressure (maximum allowable pressure) . 44.4.2 Maximum service pressure
9、. 44.4.3 Hydrostatic pressure 44.4.4 Working temperature 44.5 Materials . 44.5.1 Corrosion protection 44.5.2 LNG nozzle and receptacles 44.5.3 Material of the bodies of the receptacle and of the nozzle 44.6 Hand operation . 44.7 Sealing exchange . 44.8 Installation 55 Nozzles 55.1 Venting depressuri
10、zation . 55.2 Identification 55.3 Internal check valve 56 Standard receptacle dimensions .56.1 Drawing . 57 Receptacle .67.1 Cycle life 67.2 Design . 67.3 Protective cap . 67.4 Mounting 77.5 Maximum working temperature . 78 Instructions 78.1 Clarity 78.2 List of tools . 79 Marking 79.1 Clarity 79.2
11、Manufacturer and International Standard information 79.3 Date of manufacture . 89.3.1 First and second digits 89.3.2 Third and fourth digits . 89.4 Alternative marking 89.5 Additional marking . 810 Tests . 810.1 General requirements . 810.2 User interface . 910.2.1 Positive locking . 910.2.2 Safe di
12、sconnection 910.2.3 Manual force in warm conditions 910.2.4 Manual force at cold conditions under frost 910.3 Impact resistance of a nozzle 9 ISO 2015 All rights reserved iiiContents PageBS ISO 12617:2015ISO 12617:2015(E)10.4 Receptacle protective cap . 1010.5 Leakage at room temperature 1010.5.1 No
13、zzle . 1010.5.2 Receptacle . 1010.6 Abnormal loads . 1110.6.1 General. 1110.6.2 Test in the unpressurized condition 1110.6.3 Test in pressurized condition 1110.7 Durability of the device (Cycle life) 1210.7.1 Concept of the test of a device . 1210.7.2 Cycle definition .1210.7.3 Test series . 1210.7.
14、4 Exchange of seal of the nozzle and/or receptacle 1210.8 Electrical conductivity . 1210.9 Hydrostatic strength . 1310.9.1 Test configurations1310.9.2 Test procedure and evaluation . 1310.10 Corrosion resistance . 1310.11 Non-igniting evaluation 13Bibliography .14iv ISO 2015 All rights reservedBS IS
15、O 12617:2015ISO 12617:2015(E)ForewordISO (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 intereste
16、d 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 Com
17、mission (IEC) on all matters of electrotechnical standardization.The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the different types of ISO documents
18、should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).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
19、 identifying any or all such patent rights. Details of any patent rights identified during the development of the document will be in the Introduction and/or on the ISO list of patent declarations received (see www.iso.org/patents).Any trade name used in this document is information given for the co
20、nvenience of users and does not constitute an endorsement.For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the WTO principles in the Technical Barriers to Trade (TBT), see the following URL: Forew
21、ord Supplementary information .The committee responsible for this document is ISO/TC 22, Road vehicles, Subcommittee SC 25, Vehicles using gaseous fuels.The corrected version of ISO 12617:2015 incorporates the following corrections.Figure 1 has been corrected and the key to Figure 1 has been updated
22、 to reflect the changes. ISO 2015 All rights reserved vBS ISO 12617:2015BS ISO 12617:2015Road vehicles Liquefied natural gas (LNG) refuelling connector 3,1 MPa connector1 ScopeThis International Standard specifies liquefied natural gas (LNG) refuelling nozzles and receptacles constructed entirely of
23、 new and unused parts and materials for road vehicles powered by LNG. An LNG refuelling connector consists of, as applicable, the receptacle and its protective cap (mounted on the vehicle) and the nozzle. This International standard is applicable only to such devices designed for a maximum working p
24、ressure of 3,4 MPa (34 bar) to those using LNG as vehicle fuel and having standardized mating components.NOTE All references to pressures given in megapascals and bar (1 bar = 0,1 MPa = 105 Pa; 1 MPa = 1 N/mm2) are to be considered gauge pressures, unless otherwise specified.2 Normative referencesTh
25、e following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO 14469,
26、 Road vehicles Compressed natural gas (CNG) refuelling connectorISO 15500-2, Road vehicles Compressed natural gas (CNG) fuel system components Part 2: Performance and general test methods3 Terms and definitionsFor the purposes of this document, the following terms and definitions apply.3.1check valv
27、epart of the receptacle, or of the nozzle, mounted inside which prevents return flow or venting of fuel after the nozzle was disconnected from the receptacle3.2cycle lifenumber of refuelling cycles, as specified in this International Standard, which the component can withstand without leak or withou
28、t another fail of function3.3devicenozzle or receptacle3.4dry airair with moisture content such that the dew point of the air at the required test pressure is at least 11 C below the ambient test temperature3.5hydrostatic pressurepressure to which a component is taken to verify the structural streng
29、th of the componentINTERNATIONAL STANDARD ISO 12617:2015(E) ISO 2015 All rights reserved 1BS ISO 12617:2015ISO 12617:2015(E)3.6liquefied natural gas (LNG)cryogenic liquid produced by reducing the temperature of natural gas to about 162 C at atmospheric pressure3.7LNG refuelling connectorjoined assem
30、bly of LNG refuelling nozzle (3.8) and receptacleNote 1 to entry: Both parts have to have integrated mechanically opened check valves (3.1) which are operated by each other. The volume between the two check valves shall be reduced to a minimum to minimize the loss of fuel during the disconnection pr
31、ocess.3.8LNG refuelling nozzledevice (3.3) which permits quick connection and disconnection of fuel supply hose to the LNG receptacle in a safe manner3.9LNG refuelling receptacledevice (3.3) connected to a vehicle or storage system which receives the LNG refuelling nozzle (3.8) and permits safe tran
32、sfer of fuelNote 1 to entry: The receptacle consists as minimum from a receptacle body and from a check valve (3.1) mounted inside the body.3.10maximum service pressuremaximum pressure of the fuel delivered by the fuelling station3.11nominal flow rateflow rate through the connector at specified dens
33、ity of LNG and at specified pressure difference3.12poppetmovable closing part of the check valve (3.1)3.13positive locking meansfeature which requires actuation of an interlocking mechanism to allow connection/disconnection of the nozzle from the receptacleNote 1 to entry: It shall not be possible,
34、except by actuation of the interlocking mechanism, to disconnect under unsafe conditions when an uncontrolled release of LNG can happen which causes damage to the user and/or the environment.3.14probepart of the nozzle which enters inner space of the receptacle3.15working pressure (maximum allowable
35、 pressure)maximum pressure that an LNG refuelling connector (3.7) can be expected to withstand in actual service3.16vapour spillage spacedead volume between the nozzle and the receptacle measured with trapped water2 ISO 2015 All rights reservedBS ISO 12617:2015ISO 12617:2015(E)4 General construction
36、 requirements4.1 GeneralThis International Standard was developed to use in the examination, testing, and certification of newly produced liquefied natural gas (LNG) vehicle refuelling nozzles and receptacles and, as such, applies only to the nozzles and receptacles used in LNG refuelling systems an
37、d not to the system itself.A nozzle certified to this International Standard will be functionally compatible from a safety and performance perspective with all listed receptacles of compatible profile and system pressure. Similarly, a certified receptacle will be functionally compatible from a safet
38、y and performance perspective with all the listed nozzles of compatible profile and system pressure.As there may eventually be many different kinds of nozzles and receptacles available from a variety of manufacturers which, for safety reasons, must all be compatible with one another, this Internatio
39、nal Standard specifies a receptacle profile. The nozzle probe shall comply with the receptacle profile. This standard profile incorporates the design specification (mating dimensions, geometry and tolerances, and material requirements) which can be considered in the certification of a submitted nozz
40、le or receptacle. This International Standard refers only to one working pressure and one application.The construction and performance of nozzles and receptacles are based on the observation that three main parameters affect user safety and system compatibility, namely the following:a) working press
41、ure;All nozzles and receptacles are designed to have a working pressure of 3,4 MPa.b) design cycle life;Frequency of use is the second parameter to be considered. Since frequency of use will differ with the nozzle/receptacle application (i.e. public sector, fleet employee, and residential), all rece
42、ptacles will be tested at 10 000 connect/disconnect cycles for compliance with this International Standard (one fill per day for 27 years). In addition, all nozzles will be tested to a durability test of 20 000 cycles.c) training.Operator training required is in accordance with national requirements
43、.4.2 LNG refuelling nozzlesLNG fuelling nozzles, hereafter referred to as LNG nozzles, and receptacles, hereinafter both also referred to as devices, manufactured in accordance with this International Standard shall be designed in accordance with reasonable concepts of safety, durability, and mainta
44、inability.4.3 LNG nozzles and receptaclesLNG nozzles and receptacles shall be designed to minimize the possibility of incorrect assembly, designed to be secure against displacement, distortion, warping, or other damage, constructed to maintain operational integrity under normal and reasonable condit
45、ions of handling and usage, and designed with a vapour spillage space less than 25 cm3. ISO 2015 All rights reserved 3BS ISO 12617:2015ISO 12617:2015(E)4.4 Pressure rating4.4.1 Working pressure (maximum allowable pressure)3,4 MPa.4.4.2 Maximum service pressure3,1 MPa.4.4.3 Hydrostatic pressure2,5 ti
46、mes working pressure.4.4.4 Working temperature4.4.4.1 Receptacle working temperature range (196 C to +85 C)4.4.4.2 Nozzle working temperature rangeThe nozzle shall be designed for the temperature of the fuel 196 C and for an ambient temperature range of 40 C to +85 C.4.5 Materials4.5.1 Corrosion pro
47、tectionCorrosion-resistant materials shall be used (see 10.10). Unless suitably protected against electrolytic corrosion, dissimilar metals shall not be used in contact with each other.4.5.2 LNG nozzle and receptaclesLNG nozzles and receptacles shall be manufactured of materials suitable and compati
48、ble for use with LNG at the pressure and the temperature ranges to which they will be subjected which shall be declared by the manufacturer in the component documentation delivered with the product.4.5.3 Material of the bodies of the receptacle and of the nozzleMaterial of the bodies of the receptac
49、le and of the nozzle should bea) suitable for the working temperature range,a) conductive only conductive materials comply with the electric conductivity test (see 10.8), andb) non-sparking according to 10.11.4.6 Hand operationLNG nozzles and receptacles shall be so designed as to be operated without the use of tools and excessive force for connecting and disconnecting.4.7 Sealing exchangeDesign of a device and its check valve sealing shall make possible exchange of the check valve sealing from the front side using s
