标准编号：ISO 12614-4:2014
中文名称：公路车辆 液化天然气（LNG）燃油系统组件 第4部分：手动阀
英文名称：Road vehicles — Liquefied natural gas (LNG) fuel system components — Part 4: Manual valve
发布日期：2014-07
标准范围
This part of ISO 12614 specifies tests and requirements for the manual valve, a liquefied natural gasfuel system component intended for use on the types of motor vehicles defined in ISO 3833. This part ofISO 12614 is not applicable to the following:1) fuel containers;2) stationary gas engines;3) container mounting hardware;4) electronic fuel management;5) refueling receptacles.NOTE 1 It is recognized that miscellaneous components not specifically covered herein can be examined tomeet 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 gauge pressures unlessotherwise 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 bar).(1 bar = 0,1 MPa = 105 Pa; 1 MPa = 1 N/mm2.) Other working pressures can be accommodated by adjusting thepressure by the appropriate factor (ratio). For example, a 2 MPa (20 bar) working pressure system will requirepressures to be multiplied by 1,25.
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