ISO 228-1:2000 非螺纹密封连接管螺纹.第1部分：尺寸,公差和标注

标准编号：ISO 228-1:2000

中文名称：非螺纹密封连接管螺纹.第1部分：尺寸,公差和标注

英文名称：Pipe threads where pressure-tight joints are not made on the threads — Part 1: Dimensions, tolerances and designation

发布日期：2000-09

标准范围

ISO 228的本部分规定了螺纹形式、尺寸、公差和名称的要求紧固管螺纹，螺纹尺寸1/16至6（含）。内螺纹和外螺纹都是平行螺纹，用于配件、旋塞和阀门、附件等零部件的机械组装。这些螺纹不适用于在螺纹上进行压力密封连接的接合螺纹。如果组件对于此类螺纹，必须进行压力密封，这应通过压缩两个紧固表面来实现在螺纹外部插入适当的密封件。注1:对于螺纹上有压力密封接头的管道螺纹，见ISO 7-1。注2:ISO 228-2给出了验证紧固螺纹尺寸和形式的详细方法，以及推荐的方法测量系统。

This part of ISO 228 specifies the requirements for thread form, dimensions, tolerances and designation forfastening pipe threads, thread sizes 1/16 to 6 inclusive. Both internal and external threads are parallel threads,intended for the mechanical assembly of the component parts of fittings, cocks and valves, accessories, etc.These threads are not suitable as jointing threads where a pressure-tight joint is made on the thread. If assemblieswith such threads must be made pressure-tight, this should be effected by compressing two tightening surfacesoutside the threads, and by interposing an appropriate seal.NOTE 1 For pipe threads where pressure-tight joints are made on the threads, see ISO 7-1.NOTE 2 ISO 228-2 gives details of methods for verification of fastening thread dimensions and form, and recommendedgauging systems.

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