Lesson 1Formulas and procedures for 2:1 elliptical head thickness (UG-32, UG-31 references)Covers design formulas for 2:1 elliptical heads per UG-32, with UG-31 rules for required thickness, corrosion allowance, tolerances, and knuckle transitions, including step-by-step calculation examples and common design pitfalls.
Geometry of 2:1 elliptical headsDesign assumptions and limitations in UG-32Required thickness formula and variablesUse of corrosion and mill tolerancesSample calculation and documentationLesson 2Formulas and procedures for cylindrical shell thickness (UG-27, UG-23, UG-16 references)Explains cylindrical shell thickness design using UG-27 formulas with UG-23 and UG-16 limits, covering internal and external pressure, longitudinal and circumferential stress checks, corrosion allowance, and selection of governing thickness.
Internal pressure thickness equationsLongitudinal versus circumferential stressExternal pressure and buckling checksCorrosion allowance and mill toleranceSelecting governing shell thicknessLesson 3Nameplate, data report, marking, and stamping requirements (UG-6, UG-100)Details nameplate, stamping, and data report requirements per UG-6 and UG-100, including mandatory markings, Code symbol stamping, responsibilities of the Manufacturer and Inspector, and retention and control of data reports.
Required nameplate information per UG-6Location, attachment, and durability of nameplatesCode symbol stamping and certificationForm U-1 data report content and signingRecord retention and document controlLesson 4Joint efficiency concepts and documentation (UW-12, UW-16) and weld categoriesExplains joint efficiency concepts, weld categories, and documentation per UW-12 and UW-16, including radiography requirements, impact on thickness calculations, and proper identification of weld categories on drawings.
Weld categories A, B, C and DJoint efficiency definitions and tablesRadiography and examination levelsEffect of E on thickness formulasWeld details and drawing notationLesson 5General requirements: design pressure/temperature, corrosion allowance, minimum thicknessesCovers general design requirements such as design pressure and temperature, corrosion allowance, minimum thickness rules, and considerations for vacuum, wind, and seismic loads that influence pressure vessel design per VIII-1.
Defining design pressure and marginsDesign metal temperature and MDMTCorrosion allowance selection criteriaCode minimum thickness requirementsExternal loads: wind, seismic, vacuumLesson 6Nozzle reinforcement, openings and reinforcement calculation (UG-37 to UG-40)Addresses nozzle openings and reinforcement per UG-37 to UG-40, including area replacement concepts, limits of reinforcement zones, credit for welds and pads, and stepwise calculation of required and available reinforcement area.
Definition of opening and reinforcement zonesRequired versus available area methodCredit for nozzle neck, shell, and padLimits on reinforcement extent and shapeWorked nozzle reinforcement exampleLesson 7Hydrostatic and pneumatic test requirements, test pressure calculations (UG-99)Describes hydrostatic and pneumatic test requirements per UG-99 and related rules, including test pressure calculations, temperature limits, hold times, safety precautions, and acceptable criteria for leakage and deformation.
Purpose of pressure testing in VIII-1Hydrostatic test pressure calculationPneumatic test conditions and limitsTest temperature and hold time rulesAcceptance criteria and documentationLesson 8Materials (reference to ASME II) and allowable stress rules for pressure vesselsIntroduces material selection using ASME Section II and allowable stress rules for pressure vessels, including material specifications, product forms, temperature limits, stress tables, and considerations for impact and brittle fracture.
Using ASME Section II, Parts A and BMaterial specifications and product formsAllowable stress derivation and limitsTemperature-dependent stress valuesImpact test and toughness considerationsLesson 9Scope, applicability and mandatory appendices of Section VIII, Division 1Explains the scope and applicability of Section VIII, Division 1, including pressure and service limits, vessel exclusions, and the role of mandatory appendices in clarifying design, fabrication, and inspection requirements for pressure vessels.
Pressure and service limits of VIII-1Vessels and components excluded from scopeWhen VIII-1 is mandatory or optionalRole and structure of mandatory appendicesUsing appendices with UG paragraphsLesson 10Support and restraint requirements, lifting and attachment rules (UG-21, UG-22)Reviews support and restraint requirements per UG-21 and UG-22, including load combinations, local stresses at supports, lifting and attachment design, and ensuring vessels remain stable during operation, transport, and installation.
Types of vessel supports and restraintsLoad combinations for support designLocal stresses at saddles and lugsDesign of lifting lugs and trunnionsTransport and installation considerations
