Asme Section Viii Div 2
Asme section viii division 1 division covers the mandatory requirements specific prohibitions and nonmandatory guidance for materials design fabrication inspection and testing markings and reports overpressure protection and certification of pressure vessels having an internal or external pressure which exceeds 15 psi 100 kpa.
Asme section viii div 2. In asme section viii division 1 that is covered in article u 2 g which i have discussed previously. The requirements for class 2 vessels are largely unchanged from the previous 2015 edition of asme viii 2. Class 1 vessels are new for 2017 and differ from class 2 vessels as follows.
However higher design stress intensify values are permitted. Asme s boiler and pressure vessel code bpvc 2013 pressure vessels division 2 requirements on materials design and nondestructive examination are more rigorous than in division 1. Asme section viii division 2 in contrast asme section viii division 2 is a design by analysis code.
The 2017 edition of asme viii 2 now divides vessels into two classes class 1 and class 2. Asme bpvc section viii div. These rules may also apply to human occupancy pressure vessels typically in the diving industry.
Compared to division 1 division 2 s standards are far more rigorous but allow for higher stress intensity values. This course offers a deep insight into the benefits of applying these alternative rules. This allows for much less design margin utilizing the rules below.
Asme section viii division 2 part 4 11 4 11 2 4 11 2 design of jacketed shells and jacketed heads 4 11 2 1 shell and head thickness shall be determined using paragraphs 4 3 and 4 4 as applicable. In asme section viii division 2 you can move between part 4 design by rules and part 5 design by analysis a little more easily subject to the regulations in the locale where the pressure vessel will be located. This introductory course describes the use of alternative rules for the design and fabrication of pressure vessels given in asme bpv code section viii division 2.
Class 1 vessels use a design margin of 3 0 instead of 2 4.