规定了螺纹联轴器的要求。第1节适用于凹环接头类型。第2节适用于梯形螺纹类型。这些联轴器用于实现食品加工厂管道的连接。这两部分都提出了焊接型和膨胀型凸形零件和衬套以及螺母、环形接头或垫圈的尺寸、公差、表面粗糙度、材料、装配和卫生要求。本次修订包括了新尺寸。与技术不断变化的行业无关的附录已被删除。

Specifies the requirements for screwed couplings. Section 1 applies to recessed ring joint type. Section 2 applies to trapezoidal threads type. These couplings are used for effecting joins in pipelines in food processing plants. Both sections propose dimensions, tolerances, surface roughness materials, assembling and hygienic requirements for both welded-type and expanded-type male parts and liners and for nuts, ring joints or gaskets. In this revision new dimensions have been included. Appendices irrelevant for the industry with changing technologies have been deleted.