What technical documents must be submitted to the supervision and inspection agency when pressure vessels leave the factory?

There are certificates of quality for the main stressed components, material data sheets, pressure test reports (airtightness tests required as well), heat treatment curves, non-destructive testing reports, reports on the mechanical properties of specimens that require retesting, approved blueprints, risk assessment reports, inspection reports, contract review reports, and so on.

Thank you for the answer. There is another question. Contract review report → Could you provide a further overview of its contents? ------------------- Should the process card for the compressed components also be included?

It is to examine whether the terms of the contract allow for successful manufacturing, ensure profitability, and guarantee the completion deadline. Wait

Reply to 3# ningyong58: The process procedure card also needs to be reviewed by the boiler inspection agency, but it is not included in the delivery documents. It should be archived in the manufacturer’s files.

This is a trade secret; does the inspection agency (the boiler inspection office) have the right to conduct inspections?

It should include certificates of material qualification for the main pressure-bearing components (and any necessary re-testing reports), a material list, a quality plan or inspection plan, reports on structural dimension checks, welding records, non-destructive testing reports, heat treatment reports along with automatically recorded curves, test reports on the mechanical properties of sample pieces of the product, pressure testing reports and leakage tests, as-built drawings, design modification orders, orders for the substitution of materials, work order sheets for major components, welding procedure cards, technical agreements specified in the contract documents, receipts for pressure-bearing components and welding materials, design documents (such as strength calculations, manufacturing specifications, calculations regarding the safe discharge capacity of pressure vessels, the discharge volume of safety valves, and the discharge area of rupture discs, risk assessment reports, etc.), and calibration reports for safety accessories.

Technical agreement in the contract documents → reasonable.

One should first submit an application to the special inspection agency, bringing along the design drawings, product purchase contract, welding assessment reports, and internal manufacturing control documents. Once the agency accepts the application, it will send an inspector to the factory for supervision and inspection. During the pressure testing, the inspector will be present at the factory to oversee the process, and will examine documents such as certificates of material composition for the pressure-bearing components (along with any necessary retesting reports), material lists, quality or inspection plans, reports on structural dimensions, welding records, non-destructive testing reports, heat treatment reports and automatic recording curves, reports on the mechanical properties of sample pieces of the product, pressure resistance test reports, and leakage test reports. After that, a supervision fee must be paid, after which a supervision certificate will be issued.

For large pressure vessels that require on-site assembly or fabrication, approval documents from the local quality supervision authorities as well as on-site inspection reports from the local inspection agencies are also necessary