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1、Reference number ISO 15500-5:2001(E) ISO 2001 INTERNATIONAL STANDARD ISO 15500-5 First edition 2001-01-15 Road vehicles Compressed natural gas (CNG) fuel system components Part 5: Manual cylinder valve Vhicules routiers Composants des systmes de combustible gaz naturel comprim (GNC) Partie 5: Valve
2、manuelle du cylindre ISO 15500-5:2001(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobes licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performin
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5、tariat at the address given below. ISO 2001 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 microfilm, without permission in writing from either ISO at the add
6、ress 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.ch Web www.iso.ch Printed in Switzerland ii ISO 2001 All rights reserved -,-,- ISO 15500-5:2001(E) ISO 2001 All ri
7、ghts reservediii 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 subj
8、ect 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 (IE
9、C) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 3. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an Interna
10、tional 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 part of ISO 15500 may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Inte
11、rnationalStandardISO 15500-5waspreparedbyTechnicalCommitteeISO/TC 22,Roadvehicles, Subcommittee SC 25, Road vehicles using natural gas. ISO 15500 consists of the following parts, under the general title Road vehicles Compressed natural gas (CNG) fuel system components: ?Part 1: General requirements
12、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 injector ?Part 8: Pressure indicator ?Part 9: Pressure regulator ?Part 10: Gas-flow adjuster ?Part 11: Gas/air mixer ?Part 12:
13、 Pressure relief valve (PRV) ?Part 13: Pressure relief device (PRD) ?Part 14: Excess flow valve ?Part 15: Gas-tight housing and ventilation hose -,-,- ISO 15500-5:2001(E) iv ISO 2001 All rights reserved ?Part 16: Rigid fuel line ?Part 17: Flexible fuel line ?Part 18: Filter ?Part 19: Fittings -,-,-
14、INTERNATIONAL STANDARDISO 15500-5:2001(E) ISO 2001 All rights reserved1 Road vehicles Compressed natural gas (CNG) fuel system components Part 5: Manual cylinder valve 1Scope This part of ISO 15500 specifies tests and requirements for the manual cylinder valve, a compressed natural gas fuel system c
15、omponent intended for use on the types of motor vehicles defined in ISO 3833. This part of ISO 15500 is applicable to vehicles using natural gas in accordance with ISO 15403 (mono-fuel, bi-fuel or dual-fuel applications). It is not applicable to the following: a)liquefied natural gas (LNG) fuel syst
16、em 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 1It is recognized that miscellaneous components not specifically covered herein can be examined to
17、 meet the criteria of this part of ISO 15500 and tested according to the appropriate functional tests. NOTE 2All references to pressure in this part of ISO 15500 are to be considered gauge pressures unless otherwise specified. NOTE 3This part of ISO 15500 is based upon a service pressure for natural
18、 gas as a fuel of 20 MPa 200 bar1) settled at 15 C. Other 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. 2Normative references The following no
19、rmative documents contain provisions which, through reference in this text, constitute provisions of this part of ISO 15500. For dated references, subsequent amendments to, or revisions of, any of these publications do not apply. However, parties to agreements based on this part of ISO 15500 are enc
20、ouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies. Members of ISO and IEC maintain registers of currently valid International Standards. ISO
21、3833, Road vehicles Types Terms and definitions. 1)1 bar = 0,1 MPa = 105Pa; 1 MPa = 1 N/mm2 -,-,- ISO 15500-5:2001(E) 2 ISO 2001 All rights reserved ISO 15403, Natural gas Designation of the quality of natural gas for use as a compressed fuel for vehicles. ISO 15500-1, Road vehicles Compressed natur
22、al 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: Performance and general test methods. 3Terms and definitions For the purposes of this part of ISO 15500, the terms and definitions
23、given in ISO 15500-1 apply. 4Marking Marking of the component shall provide sufficient information to allow the following to be traced: a)the manufacturers or agents name, trademark or symbol; b)the model designation (part number); c)the service pressure or pressure and temperature range. The follow
24、ing additional markings are recommended: d)the direction of flow (when necessary for correct installation); e)the type of fuel; f)electrical ratings (if applicable); g)the symbol of the certification agency; h)the type approval number; i)the serial number or date code; j)reference to this part of IS
25、O 15500. NOTEThis 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. 5Construction and assembly The manual cylinder valve shall comply with the applicable provisions of ISO 15500-1 and ISO 15500-2, and with the
26、tests specified in clause 6 of this part of ISO 15500. 6Tests 6.1Applicability The tests required to be carried out are indicated in Table 1. ISO 15500-5:2001(E) ISO 2001 All rights reserved3 Table 1 Tests applicable TestApplicableTest procedure as required by ISO 15500-2 Specific test requirements
27、of this part of ISO 15500 Hydrostatic strengthXXX (see 6.2) LeakageXXX (see 6.3) Excess torque resistanceXX Bending momentXX Continued operationXXX (see 6.4) Corrosion resistanceXX Oxygen ageingXX Electrical overvoltages Non-metallic synthetic immersionXX Vibration resistanceXX Brass material compat
28、ibilityXX 6.2Hydrostatic strength Test the manual cylinder valve according to the procedure for testing hydrostatic strength specified in ISO 15500-2. The test pressure shall be 80 MPa (800 bar). 6.3Leakage Test the manual cylinder valve at the temperatures and pressures given in Table 2. Table 2 Te
29、st temperatures and pressures Pressure MPa bar Temperature C FirstSecond ?4015 1500,5 5 200,5 5 851 10 30 300 6.4Continued operation 6.4.1Test the manual cylinder valve in accordance with the procedure for testing continued operation given in ISO 15500-2, for 10 000 cycles, but lower the downstream
30、pressure of the test fixture to less than 0,5 MPa (5 bar), and perform the leakage test in accordance with 6.3 of this part of ISO 15500. 6.4.2Following cycling and leakage re-testing, the manual cylinder valve shall be capable of completely opening and closing when a torque no greater than the appr
31、opriate one specified in Table 3 is applied to the component handle in a direction that opens it completely and in the opposite direction. ISO 15500-5:2001(E) 4 ISO 2001 All rights reserved Table 3 Torque test Component inlet size mm Max. torque N?m 61,7 8 or 102,3 122,8 6.4.3Conduct the test at the
32、 appropriate maximum temperature according to 4.4 of ISO 15500-1:2000, then repeat the test at a temperature of?40 C and with the appropriate maximum torque specified in Table 4, below. Table 4 Torque test repeated Component inlet size mm Max. torque N?m 63,4 8 or 104,5 1211,3 -,-,- -,-,- ISO 15500-5:2001(E) ICS 43.060.40 Price based on 4 pages ISO 2001 All rights reserved