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ASME B31.3 Introduction to Process Piping Design and Canadian Regulations

ASME B31.3 Course

Understand the basic ASME B31.3 code design requirements and to provide an overview of the Canadian regulatory regime as it applies to pressure piping systems; including an overview of the relationship between Provincial regulations, CSA B51, and ASME B31.3. We offer ASME B31.3 course in Calgary, AB and surrounding cities.

Upon completion, attendees will be able to determine when ASME B31.3 applies, and they will be able to complete basic code design calculations. In addition, attendees will gain a general understanding of the standards applicable to piping components commonly used in ASME B31.3 piping systems and the implications and/or limitations that these components may have in their piping designs.

There will be a brief overview of materials properties and attendees will gain an understanding of how materials properties are considered in code design; materials are more fully discussed in the Little P.Eng. ASME B31.3 Materials, Fabrication, and Inspection Course. An overview of pertinent construction requirements (e.g., examination requirements, pressure testing), will also be provided although construction requirements are not covered in detail.

Specifically, the ASME B31.3 course will attempt to highlight areas where code requirements may not fully meet local Canadian regulatory requirements. Throughout the course, there will be reference to applicable Code interpretations, and local regulatory bulletins, notices or advisories.

This is an introductory level design course and the discussion includes an overview of piping flexibility (i.e., stress) analysis requirements but it is not intended to provide detailed instruction on flexibility analysis requirements.

Who Should Attend

Engineers, technologist, and designers – working for Owners, EPCs, inspection firms, fabricators, and repair/maintenance organizations who are involved with ASME B31.3 piping systems.


Introduction to Regulations, Codes and Standards

  • Federal Acts and Regulations

  • Provincial Acts and Regulations

  • Canadian Pressure Equipment Standards – CSA B51 requirements

  • Piping that is not ASME B31.3 Code (e.g., Plumbing, Power, Fuel Gas)

Introduction to ASME B31.3:

  • ASME B31.3 Code history and basic philosophy

  • ASME B31.3 Code organization


  • Principal axis and stress

  • Failure theories

  • Stress categories

  • Definition and basis for allowable stress

  • Fluid service

Piping Design Criteria:

  • Design conditions

  • Design loads (pressure, weight, thermal, seismic, wind, anchor movement)

  • Failure modes

  • Primary and secondary stress categories

  • Load categorization

  • Allowable stresses

Pressure Design of Piping Components:

  • Straight Pipe (internal and external pressure)

  • Elbows and bends (consideration of wall thinning)

  • Branch connections (area replacement)

  • Stub in connections

  • Extruded outlet header

  • Wye pattern fittings

  • Closures

  • Blind flanges and blanks

  • Other unlisted components

* An overview of typical materials and materials requirements as is necessary to understand design implications shall be provided

Listed Piping Components:

  • MSS SP-95 Nipples and swages

  • MSS SP-97 Integrally Reinforced Branch Connections (e.g., Olets)

  • ASME B16.9 wrought fittings (buttwelded)

  • ASME B16.11 forged fittings (threaded and socket welded)

  • ASME B16.5, B16.36, B16.47, and MSS SP-44 flanges

  • ASME B16.20 and B16.21 gaskets

  • ASME B16.48 blanks

  • Valves (ASME, API, MSS)

* An overview of typical materials and materials requirements as is necessary to understand design implications shall be provided

Instrument Tubing Components:

  • Straight Tubing (mechanical properties, material standards)

  • Tube Fittings

  • Testing requirements

Overview of Pipe Flexibility Analysis

(this section will not be presented to the same level of detail as in prior Little P.Eng. ASME B31.3 courses):

  • Allowable and displacement stresses

  • Flexibility

  • Bending stress

  • Torsional stress

  • Fatigue

  • Stress intensification

  • Combined loads

  • Cold spring

  • Simplified analysis methods

Pipe Support Design:

  • Support types

  • Assumptions

  • Load combinations

Piping Types:

  • System piping

  • Pressure relief piping

  • Category M (lethal) service

  • High pressure service (Chapter IX)

Leak Testing

  • Required Leak testing

  • Hydrostatic testing

  • Pneumatic testing

  • Alternative leak testing

  • Initial service testing

Problem Solving Workshops:

  • with practical examples


Located in Calgary, AlbertaVancouver, BCToronto, OntarioEdmonton, AlbertaHouston TexasTorrance, CaliforniaEl Segundo, CAManhattan Beach, CA; Concord, CA; We offer our engineering consultancy services across Canada and United States. Meena Rezkallah.

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