Documentation for industrial pipeline installation projects

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The basic requirements for documentation related to industrial pipeline installation projects are as follows; items not covered in the project are not included. 1. Record of drawing review meeting ； 2. Technical disclosure record ； 3. Commencement report, completion report ； 4. Material certification documents for the materials (including pipes, pipe fittings, valves, flanges, safety devices, supports, welding materials, insulation (heat retention/cooling) materials, anti-corrosion materials, etc.), as well as the inspection records from the installation unit ； Unit manufacturing license. Spot checks are conducted in special circumstances: 1) For pipe components made of chromium-molybdenum alloy steel, nickel-containing low-temperature steel, stainless steel, nickel and nickel alloys, titanium and titanium alloys, spectral analysis is performed. 2) In GC1-class pipelines and Class C fluid pipelines, for pipes and fittings that transport highly hazardous media or have a design pressure of 10 MPa or more, magnetic particle testing or penetrant testing shall be carried out on their outer surfaces. The magnetic particle testing or penetrant testing reports, as well as the thickness measurement reports, must be checked. 3) When it is specified that tests for other properties such as low-temperature impact toughness and intergranular corrosion of pipeline components and materials are to be conducted, the test results shall comply with the provisions of **current relevant standards and design documents. 4) Material sampling inspections should be conducted on alloy steel bolts and nuts. In GC1-class pipelines and Class C fluid pipelines, those with a design pressure of 10 MPa or higher shall undergo hardness sampling inspection using bolts and nuts. The test results shall comply with the **current relevant product standards and the provisions of the design documents. Check the spectral analysis or material retest report, as well as the hardness test report. 5) Other special requirements. 5. Records of trench excavation and backfilling ； 6. Records of welding material drying, distribution, and recycling ； 7. Pipe processing records (including pipe bending, coiling, end flanging, sleeve fabrication, inclined elbow production, support and hanger fabrication, etc.) 8. Records of alignment, welding, and visual inspection for each weld joint (including corner joints) ； 9. Records of weld heat treatment and hardness testing (When it is specified that tests such as chemical composition analysis of the pipeline weld metal, determination of the ferrite content in the welds, metallographic examination of the welded joints, and mechanical property testing of the product specimens are to be carried out, the test results must comply with the **current relevant standards and the provisions of the design documents. ） ； 10. Non-destructive testing procedures and plans, weld inspection assignment forms, non-destructive testing records and reports (the reports shall specify the number of each pipeline, pipeline specifications, total number of welds, number of welds to be inspected along with the inspection ratio, acceptance criteria, inspection locations, or layout diagrams, etc.) ； 11. Valve pressure testing records (Valves shall undergo shell pressure testing and sealing testing; valves with an upper sealing structure shall also undergo upper sealing testing) ； Check the safety valve calibration report ； 12. Inspection records or reports for external anti-corrosion, cleaning, degreasing, or internal anti-corrosion treatments ； 13. Inspection records or reports on the external anti-corrosion coating of buried pipelines, inspection records of the supporting foundation before the installation of buried pipelines, and inspection records of the concealed works after the buried pipelines have passed pressure testing and anti-corrosion tests ； 14. Pipeline pre-stretching or pre-compression records ； 15. Installation records of expansion indicators, monitoring sections, and pipeline creep measurement points ； 16. Compensator installation record ； 17. Records of valve installation and safety protection device installation and commissioning ； 18. Installation records of supports and hangers ； 19. Records of resistance between flanges and static grounding inspection ； 20. Records or reports of pressure tests and leak tests ； 21. Records or reports of pipeline purging and cleaning ； 22. The bolts of high-temperature or low-temperature pipeline flanges shall be tightened in service or at room temperature during the commissioning phase in accordance with the following provisions ； 23. Pipeline insulation records ； 24. As-built drawings for the installation of pressure pipelines (including design modification documents and material substitution sheets); any changes such as design modifications or material substitutions should be indicated directly on the as-built drawings ； 25. Axonometric view of pressure pipelines: The axonometric view indicates the material and specifications of the components that make up the pipeline, the location of welds, weld numbers (to distinguish between fixed welds and prefabricated welds), the welder’s code, the non-destructive testing methods used, the locations of partial or sampled non-destructive testing of welds, the locations where welds need to be repaired, and the locations of welds that have undergone heat treatment. It also allows for a clear identification and tracking of the pipeline’s components and supports ； 26. Pressure pipeline characteristic table.