Heat-supply pipe networks are mainly installed in large-scale heat-supply enterprises including thermal power stations, distributed power stations and heating power companies. The pipeline typically features a large diameter, long distance and high requirements on transporting performance.

Wide application of steam led to the first industrial revolution and the steam has never been out of the industrial production field after entering the electric age. Heavy-duty machinery enterprise, electronic instrument company, textile dyeing and printing enterprise, food processing enterprise and all kinds of industrial manufacturing industries involve production process requiring the use of steam all the time.