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Is a Class A qualification definitely required to manufacture drawings for analytical design?

2018-11-20View Original

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Regarding the same topic, if we have a device for which we have commissioned a design institute to carry out design work in accordance with standard 4732, does it necessarily have to be manufactured by a Class A manufacturer? Just because we have D1 and D2 qualifications, does that mean we can’t manufacture? Thank you! !
Reply #22018-11-20
This post was last edited by jizhanwei22 on 2018-11-20 at 11:57. 1. If the device is not covered by the TSG21-2016 Regulations on Fixed Pressure Vessels, your company is qualified to manufacture it. 2. If the equipment designed in accordance with JB/T4732 falls under the scope of the TSG21-2016 Regulations on Fixed Pressure Vessels, and it is a Class I or Class II pressure vessel, manufacturers with qualifications D1 or D2 are eligible to produce such equipment. 3. If the equipment is a Class III vessel, it is only suitable for manufacturers with A1 or A2 qualifications.
Reply #32018-11-20
Agree with 2#: Your posts are, as always, of high quality and have been extremely helpful to me :)
Reply #42018-11-20
However, Order No. 22 on the regulations for the manufacturing of pressure vessels stipulates that the equipment subject to analysis and design can only be manufactured by manufacturers of Category A and Category C. . . .
Reply #52018-11-21
Not necessarily; it depends on the specific circumstances.
Reply #62018-11-21
I searched on Baidu for the regulations regarding the licensing for the manufacture of boilers and pressure vessels under Order No. 22; this document does not specify or describe any relationship between stress analysis and the levels of manufacturing licenses. I am referring to the 2002 version of these regulations. If you have the latest version of these rules, I suggest you take a screenshot and post it, or indicate the exact section and clause number along with the original wording.
Reply #72018-11-21
The equipment designed for analysis can only be manufactured by Class A and Class C manufacturers

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