Recent Blog Posts

Provision for Refrigerant Removal

August 4th, 2025

This is an update to a blog that was originally posted on 8/4/15. You can read the original blog here. Most people who have worked around the ammonia refrigeration industry for any period of time recognize the importance that strainers play in the proper operation and maintenance of an ammonia refrigeration system. Typically located upstream […]

Ammonia Week in Review | August 1, 2025

August 1st, 2025

Ammonia Found In Unusual Circumstances in this week’s edition of the Ammonia Week in Review… Ammonia Leak at Henrico Water Treatment Facility Contained by Hazmat Team – It started when contractor employees started replacing ammonia scrubber equipment during scheduled repairs. […keep reading] ABS Supports Ammonia Safety Through a Comprehensive Approach – Understanding and learning ammonia’s behavior through advanced simulation […]

Determining Compressor Relief Valve Required Capacity

July 22nd, 2025

This is an update to a blog that was originally posted on 10/14/14. You can read the original blog here. Question: What is the proper procedure for selecting the pressure relief valve capacity for a positive displacement compressor? Answer: ANSI/IIAR 2-2021 §8.2.2.2 addresses this very question. Furthermore, Appendix E (Informative) of that same document gives […]

PSI Explained: Relief System Design and Design Basis

June 24th, 2025

This is an update to a blog that was originally posted on 6/13/17. You can read the original blog here. Relief System Design and Design Basis is one of the most commonly inspected components of Process Safety Information (Title 8 CCR §5189(d)(3)(A)(4) and Title 29 CFR §1910.119(d)(3)(i)(D)). This documentation, when prepared correctly, will describe the […]

Ammonia Week in Review | May 30, 2025

May 30th, 2025

No Harm, No Foul in this week’s edition of the Ammonia Week in Review… Chemical Leak at Pasadena Plant Facility Posed no Threat to Community – In a statement Thursday afternoon, Ineos Styrolution said the leak was isolated and posed no threat to the surrounding community. Officials had issued a precautionary onsite shelter-in-place while identifying the source of […]