New Guidance Note on Draining Oil on Ammonia Plants

5 Jan 2023

This guidance note provides guidance on the different methods used to manage oil in ammonia refrigeration systems. It supersedes guidance note GN17 which has been withdrawn. In this guidance note the term “oil” is used to cover a range of lubricants including mineral oil, synthetic oil, processed mineral oil (for example, hydrocracked oil) and other synthetic compounds such as alkyl benzene, polyalkyl glycol, polyol ester and polyalfaolefin. Not all of these synthetic compounds are compatible with ammonia.

Oil management on the low-pressure side of ammonia systems is necessary to keep the evaporators in good working order and to maintain system efficiency. The type of facility provided for the removal of oil from the low-pressure side of the system depends on the type of system, the type of oil, the level of manual intervention expected by the end user and the capital cost constraint on the installation.

Members - sign in to your web account to download this free pdf.

Not a member? Join here to download this and other publications

Back to news

Recent posts

IOR’s STEM Toolkit Shortlisted for the ACR News Award

4 Mar 2025

The Institute is delighted to announce that the IOR STEM Toolkit has been shortlisted for an ACR News Award in the Training Initiative category.

News

Celebrating the Past, Present and Future of the IOR

3 Mar 2025

During her speech at the IOR Dinner on 27 February, IOR President Lisa-Jayne Cook FInstR reflected on the IOR’s 125-year legacy of innovation, collaboration, and dedication.

Live event

The IOR Recognises Outstanding Achievements

28 Feb 2025

The IOR Annual Dinner, held in London on 27 February 2025, celebrated outstanding individual contributions to the advancement of the RACHP industry and recognised businesses for their dedication to sustainability with the Beyond Refrigeration Environmental Award. Five awards were presented during the evening

News

Institute of Refrigeration Recognises New Fellows

28 Feb 2025

IOR recognises the contribution to the industry of members who were appointed Fellows at the IOR dinner on 27th February. Read more about their achievements.

News