ASME B31.1 and ASME B31.3 Pressure Piping Codes General Requirements Overview

Mississauga, Ontario /
Jun 11 - 13, 2019 /
Course Code: 09-0330-2361

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  • Overview
  • Syllabus
  • Instructor
  • Location


After participating in this course, you will be able to:

  • Understand all the requirements of ASME B31.1 and ASME B31.3 (relevant interpretations included)
  • Perform an overview on calculations to determine the minimum wall thickness of all piping system components according to associated external loads (pressure, hydrostatic test, and water hammer, etc.).

A piping system is a set of pipes and other components (valves, elbows, etc.) used to transport fluid from point A to B. ASME B31.1 (Power Piping) and ASME B31.3 (Process Piping), recognized by the Canadian Pressure Equipment Code CSA B51 (Boiler, Pressure Vessel, and Pressure Piping Code), contain all requirements for industrial pressure piping. These codes are used in oil refineries and terminals as well as in various industries such as chemical, pharmaceutical, textile, pulp and paper, and cryogenics.  ASME B31.1 is particularly associated with high-pressure steam boilers.

These ASME Codes establish the requirements for materials, design, manufacturing, assembly, inspection, and certification of pressure piping pressure.

Course Outline:

  • Overview of main Canadian regulations on pressure piping
  • Description of responsibilities of key stakeholders and required qualifications
  • Requirements for materials (impact testing, etc.)
  • External constraints to be included when designing piping
  • Manufacturing requirements (welding, preheating, heat treatment, etc.)
  • Requirements for visual inspection of welds
  • Tightness test requirements (hydrostatic, pneumatic, sensitive leak test, alternative leak test, etc.)

Who Should Attend
Engineers • Inspectors • Technicians • Contractors • Professionals in the industrial pressure piping field

Required Resources:
Please bring your own copy: ASME B31.1 (latest edition) and ASME B31.3 (latest edition)

More Information


Daily Schedule:
8:00 Registration and Coffee (Day I only)
8:30 Session begins
12:00 Lunch
4:30 Adjournment

There will be a one-hour lunch break each day in addition to refreshment and networking breaks during the morning and afternoon.

Day 1

  • Definition of a pressure piping system (according to certain Canadian provinces)
  • The boundary between a reservoir and a pressure piping
  • Requirements (overview) regarding piping in Canada, CRN, etc. (CSA B51)
  • The limits of codes (ASME B31.1 and ASME B31.3)
  • How to find information in the ASME Codes
  • Definition of the different fluid categories of ASME B31.3 (Normal, D, M, High Pressure, Elevated Temperature, Severe Cyclic, and High Purity) and the difference between BEP (Boiler External Piping) and NBEP (Non-boiler External Piping) for ASME B31.1
  • Description of the responsibilities of main parties and minimum qualification requirements for each of them
  • Standard vs. non-standard components
  • Material requirements (including lower temperature limit calculations to verify if impact tests are required)

Day 2

  • External constraints to be included in the piping design
  • Definition of pressure and temperature design
  • How to determine the pressure and temperature design based on operation data
  • Under what conditions can we authorise pressure/temperature upsets above design limits?
  • Requirements for protection against overpressure
  • Hoop stress formula to determine minimum required thickness of a pipe having an internal pressure
  • Type of pipe supports (MSS SP-58, MSS SP-69, and MSS SP-127)
  • Trunnion
  • Formula for piping bends (intrados and extrados)
  • Formula for miter bends
  • Branch connection opening calculations and examples

Day 3

  • Calculations of flat covers (blank and blind flanges)
  • Expansion joints
  • Overview of ASME B16.5 and ASME B16.47 requirements
  • Calculations of equivalent pressure (external axial force and moment) on standard flange
  • Manufacturing requirements (welding, preheating, heat treatment, hardness test, etc.)
  • Weld defect tolerances
  • Leak test requirements (hydrostatic, pneumatic, sensitive leak test, initial leak test, alternative leak test, etc.).
  • Additional requirements on welds made without hydrostatic test (closure weld)

Appendices (will be covered only if time permits): ASME B31.3 History Water hammer calculations Piping provided with internal refractory: equivalent elasticity modulus (E) calculations Pipes having an external pressure (vacuum) and examples


Hugo Julien, ing., (P.Eng.)

Mr. Julien is an engineer graduate (1997) from l’École Polytechnique de Montréal in Mechanical Engineering with specialization in manufacturing. He is a member of the following Order of Engineers: British Columbia (APEGBC), Alberta (APEGGA), Saskatchewan (APEGS), Ontario (PEO) and Quebec (OIQ). He began his career in 1998, in the field of pressure equipment and storage tanks, as a designer and quality manager at HC Vidal Ltd. (1998 to 2002). Then, as Quality Systems Manager at Xebec Inc. (2002 to 2007). Since 2007, he is GCM Consultants’ Mechanical Integrity Group Manager. In addition to being an active ASME member, he is a certified API 510, API 570, API 571 and CSA W178.2 Level II (ASME B31.3, CSA W47.1/W59, CSA Z662) inspector. See all other details of his career on his LinkedIn page:


EPIC Learning Center
5670 McAdam Rd
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Fee & Credits
  • 2.1 Continuing Education Units (CEUs)
  • 21 Professional Development Hours (PDHs)

$1100 + taxes


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