Pressure vessel certification
Thread Content
Our company has several pressure vessels of Category 3 manufactured in 1996. Currently, we can only find the as-built drawings; there are no quality certificates. Was it the case that only the as-built drawings were provided at that time, without any quality certificates? If so, could you provide some evidence for this?
That’s impossible; equipment manufacturers always provide the as-built drawings and quality certificates to customers, and some even supply strength calculation reports. This is definitely a problem with your storage, huh.
This is impossible; after completion, the pressure vessel manufacturing unit will provide the as-built drawings and the quality certificate for the pressure vessel (which includes material certificates, non-destructive testing results, welding inspection reports, and for category 3 pressure vessels, photos taken during radiographic testing) to the user unit. Before using the vessel, the user unit must take these documents to the local quality supervision agency for review and certification before it can be put into use. It’s possible that your factory has some issues with storage – these documents are very important for the user unit.
I lost it myself, and it’s probably difficult to replace it; the manufacturer’s records have also been destroyed.
Yes, it must have been lost. I started working in 1996; at that time, pressure vessels were already subject to inspection (although the supervising agency back then was the Boiler Inspection Office under the Labor Bureau). A product quality certificate is one of the essential technical documents for pressure vessels before they leave the factory, and it is impossible for it not to be provided to you. However, if necessary, you should contact the manufacturer as soon as possible; perhaps they can provide you with a set of copies.
That’s incorrect. For Class 3 containers manufactured in 1996, the documentation to be provided at the time of delivery should comply with the \"Regulations on Safety Supervision of Pressure Vessels\"; Article 63 of these regulations specifies that the manufacturer must provide the user unit with a certificate of product quality.
Yes, since the pot has been inspected, he should have the technical documents (as-built drawings and product quality certificates); if they can’t be found, it must mean they were lost. Furthermore, the \"Regulations on Safety Inspection of Pressure Vessels\" used in 1996 was the version issued by the Labor Bureau; at that time, the inspection agency in question was called the \"Boiler and Pressure Vessel Supervision and Inspection Institute\", which was under the jurisdiction of the Labor Bureau. Am I not right in what I say?
If the issues or items are still at the manufacturing plant, the factory will provide four items upon delivery: 1. As-built drawings, 2. Quality certificate, 3. Product compliance certificate (issued by the local inspection agency in the factory’s location), 4. Strength calculation report
It should be impossible; pressure vessels are related to the property and life safety of people, so there must be certificates of conformity. Even those companies that produce components for pressure vessels must provide certificates of conformity for their products when delivering them to customers, as well as inspection certificates from relevant authorities.
This should be incorrect; it is due to improper handling by your company. For as-built drawings, quality certificates and calculation sheets must be provided to the customer, as required by the regulatory specifications.
That’s incorrect. For pressure vessels manufactured in 1989, the documents to be provided at the time of delivery should comply with the \"Regulations on Safety Supervision of Pressure Vessels\"; Article 63 of these regulations specifies that the manufacturer must provide the user unit with a certificate of product quality. It is now necessary to retrieve it directly from the original manufacturer; copies are kept at the Special Monitoring Center as well. It can be obtained by using the manufacturing number. If none is available, please ask the Special Monitoring Center to conduct further monitoring and issue a report