SY/T 4114-2008 in English

本标准规定了天然气输送管道干燥的施工技术要求。
本标准适用于新建、改扩建的天然气输送管道干燥的施工技术。其他介质管道干燥可参照执行。
本标准中干空气干燥法、真空干燥法宜用于管道、站场干燥；氮气干燥法宜用于站场工艺管道干燥；干燥剂干燥法宜用于管道干燥。

Scope

This standard specifies the construction technical requirements for drying natural gas transmission pipelines. This standard applies to the drying construction technology of newly built, renovated and expanded natural gas transmission pipelines. Drying of other media pipelines can be carried out by reference. In this standard, dry air drying method and vacuum drying method should be used for pipeline and station drying; nitrogen drying method should be used for station process pipeline drying; desiccant drying method should be used for pipeline drying.