ISO 14469-1-2004 Road vehicles - Compressed natural gas (CNG) refuelling connector - Part 1 20 MPa (200 bar) connector《道路车辆 压缩天然气(CNG)加添油连接器 第1部分 20 MPa (200 ba.pdf

1、 Reference numberISO 14469-1:2004(E)ISO 2004INTERNATIONAL STANDARD ISO14469-1First edition2004-11-01Road vehicles Compressed natural gas (CNG) refuelling connector Part 1: 20 MPa (200 bar) connector Vhicules routiers Connecteur de remplissage en gaz naturel comprim (GNC) Partie 1: Connecteur 20 MPa

2、(200 bar) Copyright International Organization for Standardization Reproduced by IHS under license with ISO Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-ISO 14469-1:2004(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobes li

3、censing 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 performing the editing. In downloading this file, parties accept therein the responsibility of not infringing Adobes licensing policy. The

4、ISO Central Secretariat accepts no liability in this area. Adobe is a trademark of Adobe Systems Incorporated. Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation parameters were optimized for printing. Every care has

5、been taken to ensure that the file is suitable for use by ISO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below. ISO 2004 All rights reserved. Unless otherwise specified, no part of this publication may be re

6、produced 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 address below or ISOs member body in the country of the requester. ISO copyright office Case postale 56 CH-1211 Geneva 20 Tel. + 41 2

7、2 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org Published in Switzerland ii ISO 2004 All rights reservedCopyright International Organization for Standardization Reproduced by IHS under license with ISO Not for ResaleNo reproduction or networking permitted without license fr

8、om IHS-,-,-ISO 14469-1:2004(E) ISO 2004 All rights reserved iiiContents Page Foreword iv Introduction v 1 Scope 1 2 Normative references . 1 3 Terms and definitions. 1 4 General construction requirements 2 5 Nozzles. 3 6 Standard receptacle dimensions. 4 7 Receptacles . 5 8 Instructions 5 9 Marking.

9、 6 10 Tests. 6 Annex A (informative) Nozzle characteristics 20 Annex B (informative) Manufacturing and production test plan . 21 Annex C (normative) Receptacle test fixture. 22 Copyright International Organization for Standardization Reproduced by IHS under license with ISO Not for ResaleNo reproduc

10、tion or networking permitted without license from IHS-,-,-ISO 14469-1:2004(E) iv ISO 2004 All rights reservedForeword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is

11、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, governmental and non-governmental, in liaison with ISO, also take part

12、in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all 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 pre

13、pare International Standards. Draft International Standards adopted by the technical committees are 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

14、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. ISO 14469-1 was prepared by Technical Committee ISO/TC 22, Road vehicles, Subcommittee SC 25, Road vehicles using natural gas. ISO 14469 consist

15、s of the following parts, under the general title Road vehicles Compressed natural gas (CNG) refuelling connector: Part 1: 20 MPa (200 bar) connector Size 2 and 25 MPa (250 bar) connectors will form the subjects of future parts 2 and 3. Copyright International Organization for Standardization Reprod

16、uced by IHS under license with ISO Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-ISO 14469-1:2004(E) ISO 2004 All rights reserved vIntroduction This part of ISO 14469 was developed to use in the examination, testing and certification of newly produced compressed

17、natural (CNG) gas vehicle fuelling nozzles and receptacles and, as such, applies only to the nozzles and receptacles used in CNG fuelling systems, and not to the system itself. A nozzle certified to this part of ISO 14469 will be functionally compatible from a safety and performance perspective with

18、 all listed receptacles of compatible profile and system pressure. Similarly, a certified receptacle will be functionally compatible from a safety and performance perspective with all listed nozzles of compatible profile and system pressure. As there may eventually be many different kinds of nozzles

19、 and receptacles available from a variety of manufacturers which, for safety reasons, must all be compatible with one another, this part of ISO 14469 specifies a series of receptacle profiles. These standard profiles incorporate the design specifications (mating materials, geometry and tolerances) w

20、hich may be considered in the certification of a submitted nozzle or receptacle. This part of ISO 14469 refers only to one working pressure and one application. Other working pressures and applications are under consideration for the future. The construction and performance of nozzles and receptacle

21、s are based on the observation that three main parameters affect user safety and system compatibility. a) Working pressure All nozzles and receptacles are designed to have a working pressure of 25 MPa (250 bar). b) Design life Frequency of use is the second parameter to be considered. Since frequenc

22、y of use will differ with the nozzle/receptacle application (i.e. public sector, fleet employee and residential), all receptacles will be tested at 10 000 connect/disconnect cycles for compliance with this part of ISO 14469. In addition, all nozzles will be tested according to the following frequenc

23、y use classifications, as applicable: 1) Class A Nozzle, specifying high frequency use, with a cycle life of 100 000 cycles and equating to approximately 100 fills per day for three years; 2) Class B Nozzle, specifying medium frequency use, with a cycle life of 20 000 cycles and equating to approxim

24、ately 10 fills per day for five years. c) Training Operator training required is in accordance with national requirements. Copyright International Organization for Standardization Reproduced by IHS under license with ISO Not for ResaleNo reproduction or networking permitted without license from IHS-

25、,-,-Copyright International Organization for Standardization Reproduced by IHS under license with ISO Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-INTERNATIONAL STANDARD ISO 14469-1:2004(E) ISO 2004 All rights reserved 1Road vehicles Compressed natural gas (CNG)

26、 refuelling connector Part 1: 20 MPa (200 bar) connector 1 Scope This part of ISO 14469 specifies CNG refuelling nozzles and receptacles constructed entirely of new and unused parts and materials, for road vehicles powered by compressed natural gas. A CNG refuelling connector consists of, as applica

27、ble, the receptacle and its protective cap (mounted on the vehicle) and the nozzle. This part of ISO 14469 is applicable only to such devices designed for a service pressure of 20 MPa (200 bar), identified by the code B200, to those using CNG in accordance with ISO 15403 and having standardized mati

28、ng components, and to connectors that prevent natural gas vehicles from being fuelled by dispenser stations with service pressures higher than that of the vehicle, while allowing them to be fuelled by stations with service pressures less than or equal to the vehicle fuel system service pressure. NOT

29、E All references to pressures, given in megapascals and bar (1 bar = 0,1 MPa = 105Pa; 1 MPa = 1 N/mm2) are to be considered gauge pressures, unless otherwise specified. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated referen

30、ces, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 188:1982, Rubber, vulcanized Accelerated ageing or heat-resistance tests ISO 1817:1985, Rubber, vulcanized Determination of the effect of liquids ISO 922

31、7:1990, Corrosion tests in artificial atmospheres Salt spray tests ISO 15403, Natural gas Designation of the quality of natural gas for use as a compressed fuel for vehicles ISO 15501-1, Road vehicles Compressed natural gas (CNG) fuel systems Part 1: Safety requirements 3 Terms and definitions For t

32、he purposes of this document, the following terms and definitions apply. 3.1 dry air air with moisture content such that the dew point of the air at the required test pressure is at least 11 C below the ambient test temperature Copyright International Organization for Standardization Reproduced by I

33、HS under license with ISO Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-ISO 14469-1:2004(E) 2 ISO 2004 All rights reserved3.2 hydrostatic pressure pressure to which a component is taken to verify the structural strength of the component 3.3 working pressure maxim

34、um pressure that a CNG refuelling connector can be expected to withstand in actual service 3.4 service pressure settled pressure of 20 MPa (200 bar) at a uniform gas temperature of 15 C 3.5 positive locking means feature which requires actuation of an interlocking mechanism to allow connection/disco

35、nnection of the nozzle from the receptacle 3.6 CNG refuelling nozzle device which permits quick connection and disconnection of fuel supply hose to the CNG receptacle in a safe manner 3.7 CNG refuelling receptacle receptacle device connected to a vehicle or storage system which receives the CNG refu

36、elling nozzle and permits safe transfer of fuel 3.8 CNG refuelling connector connector joined assembly of CNG refuelling nozzle and receptacle 4 General construction requirements 4.1 CNG refuelling nozzles (hereafter referred to as CNG nozzles) and receptacles (hereinafter both also referred to as d

37、evices) manufactured in accordance with this part of ISO 14469 shall be designed in accordance with reasonable concepts of safety, durability and maintainability. 4.2 CNG nozzles and receptacles shall be well fitted and manufactured in accordance with good engineering practice. All construction requ

38、irements may be met by either the construction specified in this part of ISO 14469 or another construction that gives at least equivalent performance. 4.3 CNG nozzles and receptacles shall be designed to minimize the possibility of incorrect assembly, designed to be secure against displacement, dist

39、ortion, warping or other damage, and constructed to maintain operational integrity under normal and reasonable conditions of handling and usage. 4.4 CNG nozzles and receptacles shall be manufactured of materials suitable and compatible for use with CNG at the pressure and the temperature ranges to w

40、hich they will be subjected (see Clause 1). The minimum temperature range shall be selected by the manufacturer between the following ranges: 40 C to 85 C 20 C to 120 C Copyright International Organization for Standardization Reproduced by IHS under license with ISO Not for ResaleNo reproduction or

41、networking permitted without license from IHS-,-,-ISO 14469-1:2004(E) ISO 2004 All rights reserved 34.5 CNG nozzles and receptacles constructed of brass shall use brass alloys with a copper mass content u 70 %. This will ensure proper material compatibility with all the constituents of natural gas.

42、4.6 Separate external three-way valves shall be constructed and marked so as to indicate clearly the open, shut and vent positions. 4.7 CNG nozzles and receptacles shall be operated either to connect or disconnect without the use of tools. 4.8 The receptacle shall be mounted on the vehicle in accord

43、ance with ISO 15501-1. 4.9 Jointing components shall provide gas-tight sealing performance. 5 Nozzles 5.1 Nozzles shall be one of the three types according to a), b) and c). See also Annex A. a) Type 1 is a nozzle for use with dispensing hoses that remain fully pressurized at dispenser shutdown. The

44、 nozzle shall not allow gas to flow until a positive connection has been achieved. The nozzle shall be equipped with an integral valve or valves, incorporating an operating mechanism which first stops the supply of gas and safely vents the trapped gas before allowing the disconnection of the nozzle

45、from the receptacle. The operating mechanism shall ensure that the vent valve is in the open position before the release mechanism can be operated and that the gas located between the nozzle shut-off valve and the receptacle check valve is safely vented prior to nozzle disconnection (see 10.2). b) T

46、ype 2 is a nozzle for use with dispensing hoses that remain fully pressurized at dispenser shutdown. A separate three-way valve connected directly, or indirectly, to the inlet of the nozzle is required to safely vent trapped gas prior to nozzle disconnection. The nozzle shall not permit the flow of

47、gas if unconnected. Venting is required prior to disconnection of the nozzle (see 10.2). c) Type 3 is a nozzle for use with dispensing hoses which are automatically depressurized 0,5 MPa (5 bar) and below at dispenser shutdown (see 10.2). In addition, nozzles shall be classified in terms of cycle li

48、fe as follows: Class A, specifying high frequency use, with a cycle life of 100 000; Class B, specifying low frequency use, with a cycle life of 20 000. 5.2 Venting or de-pressurization of all nozzle types is required prior to disconnection. Disconnection of all nozzles shall be able to be accomplis

49、hed in accordance with 10.2. 5.3 The method for attaching the nozzle to the fuel dispensing system hose shall not rely on the joint threads between the male and female threads for sealing (e.g. conical threads). 5.4 The three-way valve exhaust port of Type 1 and Type 2 nozzles shall be protected from the ingress of foreign particles