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Pressure vessel manufacturers do not need a design license to design vessels they produce themselves. Is a design license required when designing pressure vessels for other companies?
That’s definitely necessary. Otherwise, wouldn’t design permits be nothing but a formality?
I don’t know where the original poster got the idea that no licenses or qualifications are required; I’ve only heard of a reduction in the review process.
Without design licensing qualifications, it’s not possible to stamp the design drawings, and thus inspection and approval cannot be obtained.
Pressure vessel manufacturers also need to obtain certification for the vessels they design and manufacture, although the evaluation is carried out alongside the manufacturing process
Two concepts need to be clarified: design qualification and design license. If a pressure vessel manufacturing unit designs only the pressure vessels it manufactures itself, then it only needs to have equipment qualification; If you still wish to provide pressure vessel design services for other organizations, then you need to obtain a separate pressure vessel design license. The personnel requirements for the two are different.
In other words, the design license has been merged with the manufacturing license, resulting in one combined license. Design qualifications are essential; otherwise, outsourcing is necessary. How can pressure vessels be manufactured without design drawings? Article 1 of the Appendix to Document No. 3 issued by the State Administration for Market Regulation in 2019: 1. The design license for pressure vessel manufacturing units is incorporated into the manufacturing license (with the exception of analytical design for pressure vessels), and this is indicated on the manufacturing license. 2. Pressure vessel manufacturing units do not need to obtain a separate design license to design the pressure vessels they manufacture. Pressure vessel manufacturing units that lack design capabilities shall subcontract the design to a design unit holding the corresponding design license. 3. The entity that obtains the analysis design must also have the qualification for rule design approval. General Administration link: http://gkml.samr.gov.cn/nsjg/bgt/201902/t20190216_288677.html
After the design license was incorporated into the manufacturing license, it is unclear what to do with the license number on the design-specific seal of the manufacturing entity.
Those designed and manufactured by oneself are included in the manufacturing certificate; those designed by others require a separate certification
That is the serial number of the manufacturing license; the format of the special seal will be determined through unified regulations.
In other words, the special seal certification number, which is a manufacturing certificate, allows only the design of pressure vessels for that specific organization.