In environmental protection projects that involve pressure vessels and steam pressure pipelines, can drawings be prepared with a Class B qualification in environmental protection?
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In environmental protection projects that involve pressure vessels and steam pressure pipelines, can drawings be prepared with a Class B qualification in environmental protection? There are mainly flowcharts, equipment condition diagrams, and piping diagrams, etc
No, it is not possible; there is no qualification for designing pressure pipelines and pressure vessels
Separate qualifications for the design of pressure vessels and pressure pipelines are required. It is also possible to entrust a unit with qualifications for the design of pressure vessels and pressure pipelines to carry out the design and produce the drawings.
Is a special qualification for pressure vessels required even just for the condition diagram of a pressure vessel? Pressure pipelines refer only to piping systems that involve steam pipes and those carrying moderately toxic substances; is a qualification for pressure pipeline design also required in such cases?
If it is a equipment condition diagram, it’s possible. Piping diagrams can be produced for non-pressure pipelines; those for pressure pipelines require qualified personnel.
For pressure vessels, only a condition diagram is provided, with two options: 1. If the manufacturer commissioned to produce the pressure vessel has the appropriate qualifications for its design and manufacture, then it is possible. 2. If the manufacturer commissioned to produce pressure vessels only possesses the corresponding qualifications for manufacturing such vessels, it is not allowed. Pressure pipelines refer only to piping systems that involve steam pipelines; if you hold a Class B qualification in the field of environmental engineering, specifically for air pollution control projects, you might be able to take advantage of this to get by. Pressure pipelines refer to piping systems that handle media with moderate toxicity; at least a GC2 design qualification for pressure pipelines is required.
So, sir, if I only provide the equipment layout diagrams, is it necessary to have a qualification for pressure vessel design? And if I only provide PID diagrams – with GC2 indicating moderate toxicity and GC1 for steam pipelines – and cover only the non-pressure pipeline sections, is it still required to have a qualification for pressure pipeline design? In other words, which types of diagrams require qualifications related to pressure vessels and pressure pipelines?
This post was last edited by Wise Ming on 2019-2-21 at 10:35. If one does not possess the qualifications for pressure vessel design, even if they have the ability to design such vessels, the equipment condition diagrams they produce are invalid; such diagrams must be converted into ones recognized by the special inspection agency by a qualified entity. Similarly, PID also requires qualifications for pressure pipeline design. As for which drawings require design qualifications, refer to the “Requirements for Submission Documents” provided by the local special inspection agency at the project site when submitting the construction application. Alternatively, the simplest approach is to have a qualified firm prepare a set of official engineering drawings after you have completed all the design work.