Question

1.What subsections in the ASME Boiler & Pressure Vessel Code, Section VIII, Division 1 specif...

1.What subsections in the ASME Boiler & Pressure Vessel Code, Section VIII, Division 1 specify requirements for overpressure protection?

2.What subsection in ASME Boiler & Pressure Vessel Code, Section VIII, Division 1 specifies requirements for relief scenarios and capacity?

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Answer #1

ASME SECTION VIII, DIVISION 1: It consists of mandatory requirements, prohibitions and non- mandatory guidance for materials, design, fabrication, markings and reports, over-pressure protection and certification of pressure vessels.

Division is structured with subsections and parts consisting of letters followed by a number.

Hereby I am listing all the subsections and things which are considered in it. This will help you in all such questions.

1. SUBSECTION A- GENERAL REQUIREMENTS

PART UG- General requirements for all methods of construction and all materials.

  • Materials: UG-4 through to UG-15
  • Design: UG-16 through to UG-35
  • Openings and Reinforcements: UG-36 through to UG-46
  • Braced and Stayed Surfaces: UG-47 through to UG-50
  • Fabrication: UG-75 through to UG-85
  • Inspection and Tests: UG-90 through to UG-103
  • Marking and Reports: UG-115 through to UG-120
  • Over-pressure Protection: UG125 through to UG-140

2. SUBSECTION B- REQUIREMENTS PERTAINING TO METHODS OF FABRICATION OF PRESSURE VESSELS

  • UW- welding
  • UF- Forging
  • UB- Brazing

3. SUBSECTION C- CLASSES OF MATERIAL- SPECIAL CONSTRUCTIONS

  • UCS- Carbon and low alloy steel
  • UNF- non ferrous materials
  • UHA- high alloy steel
  • UCI- cast iron
  • UCL- cladding and lining
  • UCD- cast ductile iron
  • UHT- ferritic steels with heat treatment
  • ULW- layered construction
  • ULT-low temperature service
  • UHX- rules for shell and tube heat exchanger

ASME specifically states in Section VIII, Division 1, paragraph UG-125 (a) “All pressure vessels within the scope of this division, irrespective of size or pressure, shall be provided with pressure relief devices in accordance with the requirements of UG-125 through UG-137.”

So, answer to both your part lies in subsection A of Division 1.

Hope it helps!

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