1、BSI Standards PublicationBS ISO 15500-10:2015Road vehicles Compressednatural gas (CNG) fuel systemcomponentsPart 10: Gas-flow adjusterBS ISO 15500-10:2015 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of ISO15500-10:2015.The UK participation in its preparation was e
2、ntrusted to TechnicalCommittee GSE/40, Gas supply equipment for natural gas vehicles.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its
3、correctapplication. The British Standards Institution 2015.Published by BSI Standards Limited 2015ISBN 978 0 580 79969 3ICS 43.060.40Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Stra
4、tegy Committee on 31 December 2015.Amendments/corrigenda issued since publicationDate T e x t a f f e c t e dBS ISO 15500-10:2015 ISO 2015Road vehicles Compressed natural gas (CNG) fuel system components Part 10: Gas-flow adjusterVhicules routiers Composants des systmes de combustible gaz naturel co
5、mprim (GNC) Partie 10: Rgulateur du dbit de gazINTERNATIONAL STANDARDISO15500-10Second edition2015-12-01Reference numberISO 15500-10:2015(E)BS ISO 15500-10:2015ISO 15500-10:2015(E)ii ISO 2015 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2015, Published in SwitzerlandAll rights reserved. Unles
6、s 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 permission. Permission can be requested from either ISO at the ad
7、dress 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 15500-10:2015ISO 15500-10:2015(E)Foreword iv1 Scope . 12 Normative references 1
8、3 Terms and definitions . 14 Marking 25 Construction and assembly . 26 Tests . 26.1 Applicability 26.2 Hydrostatic strength 36.3 Leakage 36.4 Continued operation 36.5 Insulation resistance 36.6 Minimum operating voltage 3Bibliography 4 ISO 2015 All rights reserved iiiContents PageBS ISO 15500-10:201
9、5ISO 15500-10:2015(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 interested in a s
10、ubject 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
11、(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 should b
12、e 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 identif
13、ying 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 convenienc
14、e 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: Foreword - Sup
15、plementary informationThe committee responsible for this document is ISO/TC 22, Road vehicles, Subcommittee SC 41, Specific aspects for gaseous fuels.This second edition cancels and replaces the first edition (ISO 15500-10:2001), which has been technically revised.ISO 15500 consists of the following
16、 parts, under the general title Road vehicles Compressed natural gas (CNG) fuel system components: Part 1: General requirements and definitions Part 2: Performance and general test methods Part 3: Check valve Part 4: Manual valve Part 5: Manual cylinder valve Part 6: Automatic valve Part 7: Gas inje
17、ctor Part 8: Pressure indicator Part 9: Pressure regulator Part 10: Gas-flow adjuster Part 11: Gas/air mixer Part 12: Pressure relief valve (PRV) Part 13: Pressure relief device (PRD)iv ISO 2015 All rights reservedBS ISO 15500-10:2015ISO 15500-10:2015(E) Part 14: Excess flow valve Part 15: Gas-tight
18、 housing and ventilation hose Part 16: Rigid fuel line in stainless steel Part 17: Flexible fuel line Part 18: Filter Part 19: Fittings Part 20: Rigid fuel line in material other than stainless steel ISO 2015 All rights reserved vBS ISO 15500-10:2015BS ISO 15500-10:2015Road vehicles Compressed natur
19、al gas (CNG) fuel system components Part 10: Gas-flow adjuster1 ScopeThis part of ISO 15500 specifies tests and requirements for the gas-flow adjuster, a compressed natural gas fuel system component intended for use on the types of motor vehicles defined in ISO 3833.This part of ISO 15500 is applica
20、ble to vehicles using natural gas in accordance with ISO 15403-1 (mono-fuel, bi-fuel, or dual-fuel applications). It is not applicable to the following:a) liquefied natural gas (LNG) fuel system components located upstream of, and including, the vaporizer;b) fuel containers;c) stationary gas engines
21、;d) container mounting hardware;e) electronic fuel management;f) refuelling receptacles.NOTE 1 It is recognized that miscellaneous components not specifically covered herein can be examined to meet the criteria of this part of ISO 15500 and tested according to the appropriate functional tests.NOTE 2
22、 All references to pressure in this part of ISO 15500 are to be considered gauge pressures unless otherwise specified.NOTE 3 This part of ISO 15500 is based upon a service pressure for natural gas as a fuel of 20 MPa (200 bar1) settled at 15 C. Other service pressures can be accommodated by adjustin
23、g the pressure by the appropriate factor (ratio). For example, a 25 MPa (250 bar) service pressure system will require pressures to be multiplied by 1,25.2 Normative referencesThe following documents, in whole or in part, are normatively referenced in this document and are indispensable for its appl
24、ication. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO 15500-1, Road vehicles Compressed natural gas (CNG) fuel system components Part 1: General requirements and definitionsISO 15500
25、-2:2), 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 terms and definitions given in ISO 15500-1 apply.1) 1 bar = 0,1 MPa = 105Pa; 1 MPa = 1 N/mm2.2) To be published. (Revisio
26、n of ISO 15500-2:2012)INTERNATIONAL STANDARD ISO 15500-10:2015(E) ISO 2015 All rights reserved 1BS ISO 15500-10:2015ISO 15500-10:2015(E)4 MarkingMarking of the component shall provide sufficient information to allow the following to be traced:a) the manufacturers or agents name, trademark or symbol;
27、b) the model designation (part number);c) the working pressure and temperature range.The following additional markings are recommended: the direction of flow (when necessary for correct installation); the type of fuel; electrical ratings (if applicable); he symbol of the certification agency; the ty
28、pe approval number; the serial number or date code; a reference to this part of ISO 15500.NOTE This information can be provided by a suitable identification code on at least one part of the component when it consists of more than one part.5 Construction and assemblyThe gas-flow adjuster shall comply
29、 with the applicable provisions of ISO 15500-1 and ISO 15500-2, and with the tests specified in Clause 6. Tolerances should follow the specifications of ISO 15500-2.6 Tests6.1 ApplicabilityThe tests required to be carried out are indicated in Table 1.Table 1 Tests applicableTest Applicable Test proc
30、edure as re-quired by ISO 15500-2Specific test requirements of this part of ISO 15500Hydrostatic strength X X X (see 6.2)Leakage X X X (see 6.3)Excess torque resistance X XBending moment X XContinued operation X X X (see 6.4)Corrosion resistance X XOxygen ageing X XOzone ageing X XHeat Ageing X XAut
31、omotive Fluids X XaApplicable only if the gas-flow adjuster has an electrical or electronic component.2 ISO 2015 All rights reservedBS ISO 15500-10:2015ISO 15500-10:2015(E)Test Applicable Test procedure as re-quired by ISO 15500-2Specific test requirements of this part of ISO 15500Electrical over-vo
32、ltagesXaXNon-metallic material immersion X XVibration resistance X XBrass material compatibility X XInsulation resistanceXaX (see 6.5)Minimum operating voltageXaX (see 6.6)aApplicable only if the gas-flow adjuster has an electrical or electronic component.6.2 Hydrostatic strengthTest the gas-flow ad
33、juster according to the procedure for testing hydrostatic strength specified in ISO 15500-2:, Clause 5, at 4 times the working pressure, or 0,6 MPa (6 bar), whichever is the greater.6.3 LeakageTest the gas-flow adjuster at the temperatures of -40 C or -20 C (as applicable), room temperature and 120
34、C; the minimum test pressure shall be either 1,25 times the working pressure or 150 kPa, whichever is greater.6.4 Continued operationIf it is intended that the gas-flow adjuster be adjusted at the time of installation or service, no continued operation test is required.However, if the gas-flow adjus
35、ter is to be adjusted repeatedly during engine operation, then it shall undergo 100 000 cycles from minimum to maximum flow. At the completion of this test, the gas-flow adjuster shall comply with 6.3 at room temperature.The duration of each cycle shall be no less than 10 s.6.5 Insulation resistance
36、This test is designed to check for a potential failure of the insulation between the two-pin coil assembly and the gas-flow adjuster casing.Apply 1 000 V d.c. between one of the connector pins and the housing of the gas-flow adjuster for at least 2 s. The minimum allowable resistance shall be 240 k.
37、6.6 Minimum operating voltageThe minimum operating voltage at room temperature shall be 8 V for a 12 V system and 16 V for a 24 V system.The component shall be pressurized at 0,75 times working pressure during the test.Table 1 (continued) ISO 2015 All rights reserved 3BS ISO 15500-10:2015ISO 15500-1
38、0:2015(E)Bibliography1 ISO 3833, Road vehicles Types Terms and definitions2 ISO 15403-1, Natural gas Natural gas for use as a compressed fuel for vehicles Part 1: Designation of the quality3 ISO/TR 15403-2, Natural gas - Natural gas for use as a compressed fuel for vehicles Part 2: Specification of
39、the quality4 ISO 2015 All rights reservedBS ISO 15500-10:2015BS ISO 15500-10:2015ISO 15500-10:2015(E) ISO 2015 All rights reservedICS 43.060.40Price based on 4 pagesThis page deliberately left blankBSI is the national body responsible for preparing British Standards and other standards-related publi
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