What to do when there are conflicting regulations regarding several pressure vessels
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GB150, the Safety Inspection Regulations for Pressure Vessels, and JB4701 are all considered authoritative documents, but they contain different provisions in some areas. I would like to ask everyone what order of precedence they generally follow when dealing with such situations!
Safety regulations represent the minimum safety requirements; the principle for different locations is to follow the higher and stricter standards.
If there is a conflict among the regulations of the three, priority shall be given to meeting the requirements of the tolerance regulations
It doesn’t seem like there’s any contradiction either.
Compliance standards are the most basic requirements, followed by national standards, with industry standards and local standards providing an increasingly stringent level of requirement. In the case of anything different, strict standards shall be applied.
The management of pressure vessels should follow the stricter standards; going by the higher requirements ensures no problems
It becomes clearer with an example; strict enforcement is required
As a simple example: regulatory requirements specify that the proportion of non-destructive testing for pipe joint connections with a DN≥250 should be the same as that required for the main welds on the vessel, whereas GB150 requires 100% length testing; therefore, the proportion of non-destructive testing for pipe joint connections with a DN≥250 is 100%, and the acceptance standard is based on that of the vessel’s main welds.
If there are conflicts among the regulations of the three, the stricter one shall be applied first, as long as it does not violate the tolerance rules. Because tolerance specifications are the most basic requirement, followed by national standards, and then industry standards and local standards, with stricter requirements at each level.
It should be carried out according to strict standards; that way, there definitely won’t be any problems
150 is the minimum requirement; it’s necessary to meet that standard； The regulatory requirements are the inspection standards for pressure vessels of this category; they must be met in order to obtain certification, otherwise no certificate will be issued ； The others are generally refined on this basis.
Safety regulations are not the standards for the design, manufacture, and inspection of pressure vessel products; they are technical regulations. GB150 is a **technical standard; it is mandatory. The quality specifications and technical requirements set by GB150 represent the minimum standards – in other words, they are the highest standards with the lowest requirements, serving as the baseline for ensuring the safety of pressure vessels. During the implementation process, it is essential to first meet the requirements of the regulatory standards, as they are laws and regulations. This post was last edited by 30dman on 2009-3-27 20:53]
Typical drawings and technical documents will contain statements similar to this: In the event of any conflicts between the above standards, the more stringent requirement shall apply.
See Article 5 of the Interpretation of the Acceptance Regulations: “...As the designer and manufacturer of the product, it is consistent to comply with the Acceptance Regulations and standards; in the event of any conflict between the standards and the provisions of the Acceptance Regulations, the latter shall take precedence.” ”
Safety regulations are not the standards for the design, manufacture, and inspection of pressure vessel products; they are technical regulations. GB150 is a **technical standard; it is mandatory. The quality specifications and technical requirements set by GB150 represent the minimum standards – in other words, they are the highest standards with the lowest requirements, serving as the baseline for ensuring the safety of pressure vessels. During the implementation process, it is essential to first meet the requirements of the regulatory standards, as they are laws and regulations. It seems like the legal priority order has been brought into play here
Undoubtedly, enforcing strict requirements as stipulated is a fundamental principle
The regulatory standards represent the most fundamental requirements, followed by national standards, and then industry standards
It’s not a matter of conflict, but rather of severity; in general, it’s better to go for the higher standard – following the stricter rules is the safest approach.
The answer on floor 18 was quite excellent
Everyone is in agreement that the provisions of the Code for Pressure Vessels should be followed first, followed by standard GB150, and then various industry standards. It is also appropriate to prioritize the stricter one first, as this will avoid conflicts.