I would like to ask: if only condition diagrams for pressure vessels are required, and no design qualification for pressure vessels is available, can drawings be prepared with just a Class B environmental protection qualification?
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I would like to ask: if only condition diagrams for pressure vessels are required, and no design qualification for pressure vessels is available, can drawings be prepared with just a Class B environmental protection qualification?
No, pressure vessels require detailed inspection records at every stage, from design to manufacturing and use
Can’t it just be a conditional graph? Can’t a condition diagram just show the dimensions and necessary pipe connections, without including any details related to the manufacturing of the equipment?
Condition diagrams do not belong to the products related to pressure vessel design; I believe there are no restrictions on them. Condition diagrams are drawings used to provide requirements for the detailed design of pressure vessels
If only material properties are specified, no qualifications are required
In addition to the physical properties of the medium, there are also factors such as the size of the equipment, the diameter of the pipe ends, flange standards, and the internal structure. These are related to the manufacturing process only, and do not involve aspects such as welding, assembly, or detailed drawings of the components. Is a qualification for pressure vessel design required for this?
In fact, if you simply study the \"Regulations on the Safety Supervision of Special Equipment\", the \"Procedures for the Certification and Management of Pressure Pipeline Design Units\", and the \"Standards for Engineering Design Qualifications\", you will know what can be done and what cannot. The consequences of cross-range design are not only difficulties in project acceptance, but in severe cases, it can even lead to the revocation of design qualifications.
For generating drawings for archiving, and also to provide them to the manufacturing factory; the factory may produce further processing drawings for additional processing
Of course. In a condition diagram, generally only the overall dimensions of the device and the requirements for the pipe connections are shown.
Conditional graphs, of course, no problem. For bidding purposes only; the specific drawings shall be provided by the manufacturer, as long as the manufacturer has the qualifications for design and manufacturing.