Recent Blog Posts

Ammonia Week in Review | May 16, 2025

May 16th, 2025

Ammonia Travels The Globe in this week’s edition of the Ammonia Week in Review… Ammonia Gas Leak From Ice Cream Factory Triggers Panic in Mathura – Locals alleged that the leakage was ongoing for the last three days, but no action was taken. An 80-year-old woman was shifted to another house after she complained difficulty in breathing. […keep […]

Relief Valve Piping System Design Scenario

May 13th, 2025

This is an update to a blog that was originally posted on 1/24/17. You can read the original blog here. One often overlooked aspect of a relief valve discharge termination piping system is the scenario that was used as the basis of the piping design. Most designers understand that termination piping must be sized so […]

Ammonia Week in Review | April 18, 2025

April 18th, 2025

Repeats and Fines in this week’s edition of the Ammonia Week in Review… Second Ammonia Leak in Six Years Forces Arena Shutdown in Port Alberni – This is the second time in six years that the chiller has suffered a “catastrophic failure,” according to city officials. […keep reading] Ammonia Leak Happens at Tyson Foods Poultry Plant – All workers […]

Ammonia Week in Review | March 21, 2025

March 21st, 2025

History Repeats Itself in this week’s edition of the Ammonia Week in Review… Ammonia Leak at Cold Storage Facility in South McAllen Contained – The city of McAllen reported Monday morning a chemical spill on the 4000 block of W Military Highway in South McAllen. […keep reading] In 6 Months, Another Case of Ammonia Gas Leak – Nearly […]

Relief Valves Discharging Back into a Refrigeration System

March 18th, 2025

This is an update to a blog that was originally posted on 4/19/16. You can read the original blog here. ANSI/IIAR 2-2021 §15.3.10 outlines the requirements for providing Hydrostatic Overpressure Protection. In situations where thermal hydrostatic expansion of trapped liquid ammonia could occur, hydrostatic protection must be provided. Per ANSI/IIAR 2-2021 §15.3.10.1, Protection against overpressure […]