Sizing Openings and Nozzles according to EN 13445

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E-Suite Module

Daniel van Baalen, M.Sc.

Format: E-Suite

What you'll learn

Learn how to determine if there is adequate reinforcement at a nozzle/shell intersection according to the EN 13445 design code.

In this on-demand module, participants will be taken through: 

  • the "pressure area method" used in EN 13445-3 Clause 9 for determining the necessary reinforcement of a nozzle or opening,

  • its application for internal pressure loads and external loads (Clause 16),

  • its application for shells and ends,

  • which reinforcement can be included in the "pressure area method",

  • the procedure for designing adjacent openings,

  • when is an opening close to a discontinuity.

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About the author

Instructor Daniel van Baalen, MSc

Daniel van Baalen, MSc

Project Engineer, Dynaflow Research Group

Mechanical, Piping, FEA, Flow

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Access to the Module 
After your purchase is confirmed you receive an account to the EngineeringTrainer online learning portal, where you find the module in your dashboard. You receive 1-year unlimited access to the the training material which allows you to the review the material as required.

A personal digital badge will be made available to each participant upon successful completion.

Earn the right badges to receive a full course Certificate. Multiple certificates provide coherent Career Paths.


  • Those looking to understand how to calculate if reinforcement is needed (and size) according to EN 13445 for a nozzle or opening.

  • Those looking for a clear explanation of the "pressure area method" used to design nozzle opening and when it may and may not be used.

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