1、BSI Standards PublicationBS ISO 12614-13:2014Road vehicles Liquefiednatural gas (LNG) fuel systemcomponentsPart 13: Tank pressure control regulatorBS ISO 12614-13:2014 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of ISO12614-13:2014.The UK participation in its prep
2、aration was entrusted 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 respons
3、ible for its correctapplication. The British Standards Institution 2014. Published by BSI StandardsLimited 2014ISBN 978 0 580 77160 6ICS 43.060.40Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Po
4、licy and Strategy Committee on 31 July 2014.Amendments issued since publicationDate Text affectedBS ISO 12614-13:2014 ISO 2014Road vehicles Liquefied natural gas (LNG) fuel system components Part 13: Tank pressure control regulatorVhicules routiers quipements pour vhicules utilisant le gaz naturel l
5、iqufi (GNL) comme combustible Partie 13: Rgulateur de pression du rservoirINTERNATIONAL STANDARDISO12614-13First edition2014-07-01Reference numberISO 12614-13:2014(E)BS ISO 12614-13:2014ISO 12614-13:2014(E)ii ISO 2014 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2014All 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 officeCase postale 56 CH-1211 Geneva 20Tel. + 41 22 749 01 11Fax + 41 22 749 09 47E-mail copyrightiso.orgWeb www.iso.orgPublished in SwitzerlandBS ISO 12614-13:2014ISO 12614-13:2014(E) ISO 2014 All rights reserved iiiConte
8、nts PageForeword iv1 Scope . 12 Normative references 13 Terms and definitions . 14 Marking 25 Construction and assembly . 26 Test 26.1 Applicability 26.2 Hydrostatic strength 36.3 External leakage . 36.4 Continued operation 3BS ISO 12614-13:2014ISO 12614-13:2014(E)ForewordISO (the International Orga
9、nization 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 establis
10、hed 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
11、.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 be noted. This document was drafted in accordance with th
12、e 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 identifying any or all such patent rights. Details of any paten
13、t 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 convenience of users and does not constitute an endorsement.For an
14、 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 - Supplementary informationThe committee responsible for this
15、 document is ISO/TC 22, Road vehicles, Subcommittee SC 25, Vehicles using gaseous fuels.ISO 12614 consists of the following parts, under the general title Road vehicles Liquefied natural gas (LNG) fuel system components: Part 1: General requirements and definitions Part 2: Performance and general te
16、st methods Part 3: Check valve Part 4: Manual valve Part 5: Tank pressure gauge Part 6: Overpressure regulator Part 7: Pressure relief valve Part 8: Excess flow valve Part 9: Gas-tight housing and ventilation hose Part 10: Rigid fuel line in stainless steel Part 11: Fittings Part 12: Rigid fuel line
17、 in material other than stainless steel Part 13: Pressure control regulator Part 14: Differential pressure fuel content gauge Part 15: Capacitance fuel content gaugeiv ISO 2014 All rights reservedBS ISO 12614-13:2014ISO 12614-13:2014(E) Part 16: Heat exchanger - vaporizer Part 17: Natural gas detect
18、or Part 18: Gas temperature sensor ISO 2014 All rights reserved vBS ISO 12614-13:2014BS ISO 12614-13:2014Road vehicles Liquefied natural gas (LNG) fuel system components Part 13: Tank pressure control regulator1 ScopeThis part of ISO 12614 specifies tests and requirements for the pressure control re
19、gulator, a liquefied natural gas fuel system component intended for use on the types of motor vehicles defined in ISO 3833.This part of ISO 12614 is not applicable to the following:a) fuel containers;b) stationary gas engines;c) container mounting hardware;d) electronic fuel management;e) refueling
20、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 12614 and tested according to the appropriate functional tests.NOTE 2 All references to pressure in this part of ISO 12614 are to be considered g
21、auge pressures unless otherwise specified.NOTE 3 This part of ISO 12614 is based upon a working pressure for natural gas as a fuel of 1,6 MPa 16 bar1). Other working pressures can be accommodated by adjusting the pressure by the appropriate factor (ratio). For example, 2 MPa (20 bar) working pressur
22、e 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 application. For dated references, only the edition cited applies. For undated references, the latest
23、 edition of the referenced document (including any amendments) applies.ISO 3833, Road vehicles Types Terms and definitionsISO 12614-1, Road vehicles Liquefied natural gas (LNG) fuel system components Part 1: General requirements and definitionsISO 12614-2, Road vehicles Liquefied natural gas (LNG) f
24、uel system components Part 2: Performance and general test methods3 Terms and definitionsFor the purposes of this document, the terms and definitions given in ISO 12614-1 and the following apply.1) 1 bar = 0,1 MPa = 105 Pa; 1 MPa = 1 N/mm2.INTERNATIONAL STANDARD ISO 12614-13:2014(E) ISO 2014 All rig
25、hts reserved 1BS ISO 12614-13:2014ISO 12614-13:2014(E)3.1lock-up pressurestabilized outlet pressure of the regulator at 0 (zero) flow4 MarkingMarking of the component shall provide sufficient information to allow the following to be traced:a) the manufacturers or agents name, trademark, or symbol;b)
26、 the model designation (part number);c) the working pressure or pressure and temperature range.The following additional markings are recommended:a) the direction of flow (when necessary for correct installation);b) the type of fuel;c) electrical ratings (if applicable);d) the symbol of the certifica
27、tion agency;e) the type approval number;f) the serial number or date code;g) reference to this part of ISO 12614 (i.e. ISO 12614-13).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
28、 assembly5.1 The tank pressure regulator shall comply with the applicable provisions of ISO 12614-1 and ISO 12614-2 and with the tests specified in Clause 6 of this part of ISO 12614.5.2 The tank pressure regulator shall have a factory-set maximum outlet pressure. The maximum outlet pressure rating
29、and the inlet pressure rating shall be marked on the regulator.6 Test6.1 ApplicabilityThe tests required to be carried out are indicated in Table 1.2 ISO 2014 All rights reservedBS ISO 12614-13:2014ISO 12614-13:2014(E)Table 1 Tests applicableTest ApplicableTest procedure as required by ISO 12614-2Sp
30、ecific test requirements of this part of ISO 12614Hydrostatic 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 XElectrical over voltages X XNon-metallic material immersion X XVibrat
31、ion resistance X XBrass material compatibility X XInsulation resistanceMinimum opening voltage6.2 Hydrostatic strength6.2.1 Test the tank pressure regulator according to the procedure for testing hydrostatic strength specified in ISO 12614-2.6.2.2 Test the inlet of the regulator at a pressure of 2,5
32、 times the working pressure.6.2.3 Test the outlet chamber, port, and all outlet fittings at two times the working pressure, or 0,4 MPa (4 bar), whichever is greater.6.3 External leakageTest the tank pressure regulator at the temperatures and pressures given in Table 2.Table 2 Test temperatures and p
33、ressuresTemperature CPressure Factor x Working PressureFirst Second162 1,0 x WP 0,25 x WP20 0,25 x WP1,5 x WP85 or 120 0,25 x WP6.4 Continued operationThe tank pressure regulator shall be able to withstand 7 000 cycles without any failure when tested according to the following procedure. Where the s
34、tages of pressure regulation are separate, the working pressure in a) to c) is considered to be the working pressure of the upstream stage.a) Recycle the regulator for 50 % of the total number of cycles at room temperature and at the working pressure. Each cycle shall consist of flow until stable ou
35、tlet pressure has been obtained, after which, the gas flow shall be shut off by a downstream valve within 1 s, until the downstream lock-up pressure has stabilized. Stabilized outlet pressures are defined as set pressure 15 % for at least ISO 2014 All rights reserved 3BS ISO 12614-13:2014ISO 12614-1
36、3:2014(E)5 s. The regulator shall comply with 6.3 at room temperature at intervals of 20 %, 40 %, 60 %, 80 %, and 100 % of room temperature cycles.b) Repeat the cycling procedure of a) at less than 162 C and 100 % of working pressure for 50 % of the total number of cycles.c) At the completion of the
37、 cycles, the lock-up pressure downstream of the regulator shall not exceed the lock-up pressure specified by the manufacturer.4 ISO 2014 All rights reservedBS ISO 12614-13:2014BS ISO 12614-13:2014ISO 12614-13:2014(E) ISO 2014 All rights reservedICS 43.060.40Price based on 4 pagesThis page deliberate
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