Issues with the length of steam tracing pipelines?

You can refer to these posts; on the Haichuan Forum, information on the criteria for selecting heat tracing pipes can be found in \"Selection of Insulation and Heat Retention Types\" (HG/T 20570.11), page P389, under item (3) \"Heat tracing and insulation for pipeline steam systems\": a) Selection of the diameter of pipeline heat tracing pipes. Generally, for process and utility pipelines, pipes with a diameter of DN15–DN25 are used; if necessary, heat tracing pipes with a diameter larger than DN25 can also be employed. b. Determination of the number of pipe heating tubes: The number of pipe heating tubes is related to the properties of the process medium flowing within the pipes that need to be heated, as well as the diameter of those process pipes. In accordance with the requirements of the specific engineering design project, the pipeline materials team shall prepare \"Design Specifications for Insulation\", which specify the insulation grade and relevant data, thereby determining the appropriate number of pipe heating tubes. c Other design requirements: Pipes transporting corrosive or heat-sensitive media must not come into direct contact with the surrounding pipes; an isolation layer (such as asbestos paper or asbestos board) should be placed between them. Selection of pipe diameter for material heating pipelines https://bbs.hcbbs.com/thread-706464-1-1.html (Source: Haichuan Chemical Industry Forum) SH/T3126-2001 Standards for the design of heating and insulation systems for instruments and pipelines in the petrochemical industry https://bbs.hcbbs.com/thread-740924-1-1.html (Source: Haichuan Chemical Industry Forum)

Manual for the Installation Design of Process Piping in Petrochemical Plants, Part 1, Chapter 13: Design of Heat Tracing for Process Piping