1、 ISO 2016 Road vehicles Compressed gaseous hydrogen (CGH2) and hydrogen/ natural gas blends fuel system components Part 4: Check valve Vhicules routiers Composants des circuits dalimentation pour hydrogne gazeux comprim (CGH2) et mlanges de gaz naturel et hydrogne Partie 4: Clapet de nonretour INTER
2、NATIONAL STANDARD ISO 12619-4 First edition 2016-08-15 Reference number ISO 12619-4:2016(E) ISO 12619-4:2016(E)ii ISO 2016 All rights reserved COPYRIGHT PROTECTED DOCUMENT ISO 2016, Published in Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduce
3、d 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 address below or ISOs member body in the country of the requester. IS
4、O copyright office Ch. de Blandonnet 8 CP 401 CH-1214 Vernier, Geneva, Switzerland Tel. +41 22 749 01 11 Fax +41 22 749 09 47 copyrightiso.org www.iso.org ISO 12619-4:2016(E)Foreword iv 1 Scope . 1 2 Normative references 1 3 T erms and definitions . 2 4 Markings . 2 5 Construction and assembly . 2 6
5、 Tests . 2 6.1 Applicability 2 6.2 Hydrostatic strength 3 6.3 Leakage 3 6.4 Continued operation 4 Bibliography 5 ISO 2016 All rights reserved iii Contents Page ISO 12619-4:2016(E) Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies
6、 (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 committee. International organizations,
7、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. The procedures used to develop this document and those intended for its further ma
8、intenance 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 the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives). A
9、ttention 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 patent rights identified during the development of the document will be in the Introduc
10、tion 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 explanation on the meaning of ISO specific terms and expressions related to con
11、formity 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 information. The committee responsible for this document is ISO/TC 22, Road vehicles, Subcommittee SC 41, Specific aspects for
12、 gaseous fuels. ISO 12619 consists of the following parts, under the general title Road vehicles Compressed gaseous hydrogen (CGH2) and hydrogen/natural gas blends fuel system components: Part 1: General requirements and definitions Part 2: Performance and general test methods Part 3: Pressure regul
13、ator Part 4: Check valve Part 5: Manual cylinder valve Part 6: Automatic valveiv ISO 2016 All rights reserved INTERNATIONAL ST ANDARD ISO 12619-4:2016(E) Road vehicles Compressed gaseous hydrogen (CGH2) and hydrogen/natural gas blends fuel system components Part 4: Check valve 1 Scope This part of I
14、SO 12619 specifies general requirements and definitions of compressed gaseous hydrogen (CGH2) and hydrogen/natural gas blends fuel system components, intended for use on the types of motor vehicles defined in ISO 3833. It also provides general design principles and specifies requirements for instruc
15、tions and markings. It is applicable to vehicles using compressed gaseous hydrogen (CGH2) in accordance with ISO 14687-1 or ISO 14687-2 and hydrogen/natural gas blends using natural gas in accordance with ISO 15403-1 and ISO/TR 15403-2. It is not applicable to the following: a) liquefied hydrogen (L
16、H2) fuel system components located upstream of, and including, the vaporizer; b) fuel containers; c) stationary gas engines; d) container mounting hardware; e) electronic fuel management; f) refuelling receptacles. NOTE 1 It is recognized that miscellaneous components not specifically covered herein
17、 can be examined to meet the criteria of this part of ISO 12619 and tested according to the appropriate functional tests. NOTE 2 All references to pressure in this part of ISO 12619 are to be considered gauge pressures, unless otherwise specified. NOTE 3 This part of ISO 12619 may not apply to fuel
18、cell vehicles in compliance with international regulations. 2 Normative references The 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 la
19、test edition of the referenced document (including any amendments) applies. ISO 12619-1, Road vehicles Compressed gaseous hydrogen (CGH2) and hydrogen/natural gas blend fuel system components Part 1: General requirements and definitions ISO 12619-2, Road vehicles Compressed gaseous hydrogen (CGH2) a
20、nd hydrogen/natural gas blend fuel system components Part 2: Performance and general test methods ISO 2016 All rights reserved 1 ISO 12619-4:2016(E) 3 T erms a nd definiti ons For the purposes of this document, the terms and definitions given in ISO 12619-1 apply. 4 Markings Marking of the component
21、 shall provide sufficient information to allow the following details to be traced: manufacturers or agents name, trademark or symbol; model designation (part number); working pressure or pressure and temperature range. The following additional markings are recommended: direction of flow (when necess
22、ary for correct installation); type of fuel; electrical ratings (if applicable); symbol of the certification agency (if applicable); type approval number; serial number or date code; reference to this International Standard (i.e. ISO 12619). Marking shall remain legible for the life of the component
23、 and shall not be removed without destroying or defacing the marking. Permanent adhesive labels are permissible, or markings may be etched, stamped, or moulded into the component. NOTE 1 Specific information required for each component can be found in this part of ISO 12619 and subsequent parts of I
24、SO 12619. NOTE 2 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 assembly The check valve shall comply with the applicable provisions of ISO 12619-1 and ISO 12619-2, and with the tests
25、 specified in Clause 6. 6 Tests 6.1 Applicability The tests required to be carried out are indicated in Table 1.2 ISO 2016 All rights reserved ISO 12619-4:2016(E) Table 1 Tests applicable Test Applicable Test procedure as required by ISO 12619-2 S p e c i f i c t e s t r e q u i r e m e n t s of thi
26、s part of ISO 12619 Hydrostatic strength X X X (see 6.2) Leakage X X X (see 6.3) Excess torque resistance X X Bending moment X X Continued operation X X X (see 6.4) Corrosion resistance X X Oxygen ageing X X Ozone ageing X X N-pentane X X Heat ageing X X Electrical over-voltages Non-metallic materia
27、l immersion X X Pre-cooled hydrogen exposure test X X Material requirements X Non-metallic material compatibility to hydrogen X X Automotive fluid exposure X X Ultraviolet resistance of external surfaces X X Vibration resistance X X Brass material compatibility X X NOTE Not applicable for check valv
28、es built into other components. 6.2 Hydrostatic strength Test the check valve according to the procedure for testing hydrostatic strength specified in ISO 12619-2. The test pressure shall be twice the working pressure. 6.3 Leakage Test the check valve at the temperatures and pressures given in Table
29、 2. Table 2 Test temperatures and pressures Temperature C Pressure MPa (bar) First Second 40 or 20 as applicable 0,75 WP 0,025 WP 20 0,025 WP 1,5 WP +85 or +120 as applicable 0,05 WP ISO 2016 All rights reserved 3 ISO 12619-4:2016(E) 6.4 Continued operation The check valve shall be capable of withst
30、anding 20 000 cycles of operation and 24 hours of chatter flow when submitted to the following test procedure: a) Connect the check valve to a test fixture and apply a pressure equal to the working pressure to the check valves inlet, then vent pressure from its outlet. Lower the pressure on the chec
31、k valves outlet side to between 0 and a maximum of 0,5 times the working pressure prior to the next cycle. b) Following 20 000 cycles of operation, subject the check valve to 24 hours of chatter flow at a flow rate that causes the most chatter. After this test, the check valve shall comply with the
32、leakage test according to 6.3. Failure in any sense during the procedure shall constitute a failure of the check valve. All parts shall remain in position and function properly after this test. After this test, the check valve shall comply with the hydrostatic test according to 6.2.4 ISO 2016 All ri
33、ghts reserved ISO 12619-4:2016(E) Bibliography 1 ISO 3833, Road vehicles Types Terms and definitions 2 ISO 6722-1, Road vehicles 60 V and 600 V single-core cables Part 1: Dimensions, test methods and requirements for copper conductor cables 3 ISO 6722-2, Road vehicles 60 V and 600 V single-core cabl
34、es Part 2: Dimensions, test methods and requirements for aluminium conductor cables 4 ISO 6722-3 1) , Road vehicles Unscreened low-tension cables Part 3: Conductor sizes and dimensions for thick-wall insulated cables 5 ISO 6722-4 2) , Road vehicles Unscreened low-tension cables Part 4: Conductor siz
35、es and dimensions for thin-wall insulated cables 6 ISO 12619-3, Road vehicles Compressed gaseous hydrogen (CGH2) and hydrogen/natural gas blend fuel system components Part 3: Pressure regulator 7 ISO 14687-1, Hydrogen fuel Product specification Part 1: All applications except proton exchange membran
36、e (PEM) fuel cell for road vehicles 8 ISO 14687-2, Hydrogen fuel Product specification Part 2: Proton exchange membrane (PEM) fuel cell applications for road vehicles 9 ISO 15403-1, Natural gas Natural gas for use as a compressed fuel for vehicles Part 1: Designation of the quality 10 ISO/TR 15403-2
37、, Natural gas - Natural gas for use as a compressed fuel for vehicles Part 2: Specification of the quality 11 ISO/TS 15869, Gaseous hydrogen and hydrogen blends Land vehicle fuel tanks 1) Withdrawn. 2) Withdrawn. ISO 2016 All rights reserved 5 ISO 12619-4:2016(E) ISO 2016 All rights reserved IC S 43.060.40 Price based on 5 pages
