What are the requirements regarding the distance between the installation location of pressure pipeline supports and hangers and the pipeline welds?
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As the title suggests, in which standard is it specifically specified?
Industrial pipelines shall comply with GB50235
Article 6.0.2 of GB 50235-2010, Code for Construction of Industrial Metal Piping Projects and Explanations to the Provisions, stipulates that \"the clear distance between the circumferential weld of the pipe and the support or hanger shall not be less than 50 mm.\" The distance between a weld that requires heat treatment and a support or hanger must be at least 5 times the width of the weld, and must not be less than 100 mm. ” GB 20801.4-2006 Code for pressure pipelines – Industrial pipelines – Part 4: Fabrication and installation specifies in Article 7.6 that the clear distance between the circumferential weld of a pipeline and the supports or hangers shall be not less than 50 mm. The distance between the weld that requires heat treatment and the supports or hangers must be at least 5 times the width of the weld, and must also be no less than 100 mm. ” Clause 13.1.16 of SH-T 3012-2011, the Code for Design of Metal Piping Installation in Petrochemical Industries, stipulates that: \"The distance between the edge of the support or hanger and the pipe weld shall not be less than 50 mm. For pipe welds that require heat treatment, the distance from such welds to the supports or hangers shall be not less than 5 times the width of the weld, and shall also not be less than 100 mm.\"”
These are all basic requirements; attention must be paid to the piping