Pressure vessel design seal issues
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After the implementation of TSG 07-2019, design and manufacturing will be managed in a unified manner. That is, units that design and manufacture pressure vessels by themselves do not need to obtain design qualifications. So do design drawings need to be stamped with a design stamp? If a seal is required and there is no design license number, how can the seal be engraved?
A design stamp is required. However, the license number of the design seal must be consistent with the manufacturing certificate number.
A special design seal must be stamped, and the format must also comply with regulatory requirements. The new qualification comes with its own design license. The old statement is very vague and it is recommended to re-evaluate.
The picture comes from "Answers to Questions about the Administrative Licensing of Special Equipment", which is uniformly answered by the Special Equipment Administrative Licensing Office of the State Administration for Market Regulation and can be searched on the website of the State Administration for Market Regulation.
Whether your own unit needs a design seal for control, it is best to use a design seal. You can just follow the manufacturing license number. It is equivalent to the chapter of internal design control link control.