ISO 15500-9-2012 Road vehicles - Compressed natural gas (CNG) fuel system components - Part 9 Pressure regulator《道路车辆 压缩天然气(CNG)燃料系统部件 第9部分 调压器》.pdf
《ISO 15500-9-2012 Road vehicles - Compressed natural gas (CNG) fuel system components - Part 9 Pressure regulator《道路车辆 压缩天然气(CNG)燃料系统部件 第9部分 调压器》.pdf》由会员分享,可在线阅读,更多相关《ISO 15500-9-2012 Road vehicles - Compressed natural gas (CNG) fuel system components - Part 9 Pressure regulator《道路车辆 压缩天然气(CNG)燃料系统部件 第9部分 调压器》.pdf(14页珍藏版)》请在麦多课文档分享上搜索。
1、 ISO 2012 Road vehicles Compressed natural gas (CNG) fuel system components Part 9: Pressure regulator Vhicules routiers Composants des systmes de combustible gaz naturel comprim (GNC) Partie 9: Rgulateur de pression INTERNATIONAL STANDARD ISO 15500-9 Second edition 2012-04-15 Reference number ISO 1
2、5500-9:2012(E) ISO 15500-9:2012(E) ii ISO 2012 All rights reserved COPYRIGHT PROTECTED DOCUMENT ISO 2012 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microf
3、ilm, without permission in writing from either ISO at the address below or ISOs member body in the country of the requester. ISO copyright office Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org Published in Switzerland ISO 15500-
4、9:2012(E) Foreword ISO (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 subject for
5、 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 (IEC) on a
6、ll matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are
7、 circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. 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 re
8、sponsible for identifying any or all such patent rights. ISO 15500-9 was prepared by Technical Committee ISO/TC 22, Road vehicles, Subcommittee SC 25, Vehicles using gaseous fuels. This second edition cancels and replaces the first edition (ISO 15500-9:2001), which has been technically revised. ISO
9、15500 consists of the following 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: A
10、utomatic valve Part 7: Gas injector 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) Part 14: Excess flow valve Part 15: Gas-tight housing and ventilation hose Part 16: R
11、igid fuel line in stainless steel Part 17: Flexible fuel line Part 18: Filter Part 19: Fittings ISO 2012 All rights reserved iii ISO 15500-9:2012(E) Part 20: Rigid fuel line in material other than stainless steel iv ISO 2012 All rights reserved ISO 15500-9:2012(E) Introduction For the purposes of th
12、is part of ISO 15500, all fuel system components in contact with natural gas have been considered suitable for natural gas as defined in ISO 15403. However, it is recognized that miscellaneous components not specifically covered herein can be examined to meet the criteria of this part of ISO 15500 a
13、nd tested according to the appropriate functional tests. All references to pressure in this part of ISO 15500 are considered to be gauge pressures unless otherwise specified. This part of ISO 15500 is based on a service pressure for natural gas used as fuel of 20 MPa 200 bar 1) settled at 15 C. Othe
14、r service pressures can be accommodated by adjusting 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. 1) 1 bar = 0,1 MPa = 10 5Pa; 1 MPA = 1 N/mm 2 . ISO 2012 All rights reserved v Road vehicles C
15、ompressed natural gas (CNG) fuel system components Part 9: Pressure regulator 1 Scope This part of ISO 15500 specifies tests and requirements for the pressure regulator, a compressed natural gas (CNG) fuel system component intended for use on the types of motor vehicles defined in ISO 3833. This par
16、t of ISO 15500 is applicable to vehicles (mono-fuel, bi-fuel or dual-fuel applications) using natural gas in accordance with ISO 15403. 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;
17、c) stationary gas engines; d) container-mounting hardware; e) electronic fuel management; f) refuelling receptacles. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated ref
18、erences, 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 definitions ISO 15500-2, Road vehicles Compressed natural gas (CNG) fuel system components Part 2
19、: Performance and general test methods 3 T erms and definitio ns For the purposes of this document, the terms and definitions given in ISO 15500-1 and the following apply. 3.1 lock-up pressure stabilized outlet pressure of the regulator at 0 (zero) flow 4 Marking Marking of the component shall provi
20、de sufficient information to allow the following to be traced: a) the manufacturers or agents name, trademark or symbol; INTERNATIONAL STANDARD ISO 15500-9:2012(E) ISO 2012 All rights reserved 1 ISO 15500-9:2012(E) b) the model designation (part number); c) the working pressure or working pressure a
21、nd temperature range; d) the maximum outlet pressure. The following additional markings are recommended: the direction of flow (when necessary for correct installation); the type of fuel; electrical ratings (if applicable); the symbol of the certification agency; the type approval number; the serial
22、 number or date code; 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 assembly The pressure regulator shall comply with the applicable provisi
23、ons of ISO 15500-1 and ISO 15500-2, and with the tests specified in Clause 6 of this part of ISO 15500. The components downstream of the pressure regulator shall be protected from exposure to full upstream pressure. The pressure relief valve used for this purpose shall reset after relieving. A press
24、ure relief valve may be integral to the pressure regulator. The pressure regulator shall have a factory-set maximum outlet pressure. The maximum outlet pressure rating and the inlet working pressure rating shall be marked on the regulator. 6 Tests 6.1 Applicability The tests required to be carried o
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