From intermediate PH diagrams to coldroom sizing and equipment selection, the library of IOR Masterclasses keeps growing! Themes explored in the first half of 2025 include:

  • Refrigeration pipe sizing
  • Compressors - what you need to know
  • The vapour compression cycle (parts 1 and 2)
  • Best practice for refrigeration pipework
  • Sizing of coldrooms and selecting equipment
  • Intermediate PH diagrams

Access the recordings anytime, anywhere via the IOR webinar channel or the Masterclass page, where you can also book upcoming sessions.

 

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About

About the IOR

23 Apr 2026

The Institute of Refrigeration is the professional engineering body for all individuals working in RACHP. Find out more about the IOR here. 

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What We Do

What we do

23 Apr 2026

Find out what the IOR can do for you: technical queries, safety codes of practice, new  technologies and professional development.

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Join us

23 Apr 2026

When you become a member of the Institute of Refrigeration you are joining a group of specialist experts driving the sector forward.

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BSI Celebrating Its 125th Anniversary

23 Apr 2026

The Institute of Refrigeration is a member of the BSI and a nominating body that puts forward experts to technical panels in charge of developing safety standards. 

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New Publications Series from the IOR Environmental Committee

23 Apr 2026

The IOR’s Environmental Committee has today published the first in a new series of Technology Briefs on the topic of Heat Recovery. 

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