BS EN ISO 228-1-2003 非螺纹密封连接的管螺纹.尺寸规格,公差和名称符号

标准号：BS EN ISO 228-1-2003
中文标准名称：非螺纹密封连接的管螺纹.尺寸规格,公差和名称符号
英文标准名称：Pipe threads where pressure-tight joints are not made on the threads - Dimensions, tolerances and designation
标准类型：J15
发布日期：2003/2/26 12:00:00
实施日期：2003/2/26 12:00:00
中国标准分类号：J15
国际标准分类号：21.040.30
适用范围：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.