Recent Blog Posts

Ventilation System Tests

August 7th, 2018

Machinery room ventilation systems have long been required by model codes and standards. Dating back to at least the 1967 Uniform Mechanical Code[1], refrigeration machinery rooms have been required to be configured with adequate ventilation in the event of a refrigerant release. While we have written previously about the current ventilation design, control, and testing […]

Ammonia Refrigeration and 2018 NFPA 1 (Fire Code)

July 24th, 2018

The National Fire Protection Association (NFPA) recently released their publication of the 2018 NFPA 1 Fire Code and it contains two noteworthy changes from the 2015 version that will impact ammonia refrigeration systems built under the jurisdiction of this code. If your facility is already using IIAR as your primary standard for ammonia refrigeration, these […]

Ammonia Refrigeration and the 2018 International Mechanical Code

July 10th, 2018

The International Code Council (ICC) recently released their publication of the 2018 International Mechanical Code (IMC) and it contains three noteworthy changes/clarifications that will impact ammonia refrigeration systems built under the jurisdiction of this code. As we look ahead to 2019, when the IMC will be adopted, it is valuable to be aware of these […]

Ammonia Refrigeration and the 2018 International Fire Code

June 26th, 2018

The International Code Council (ICC) recently released their publication of the 2018 International Fire Code (IFC) and it contains three noteworthy changes/clarifications that will impact ammonia refrigeration systems built under the jurisdiction of this code. There has been some shifting around from the 2015 IFC, so we hope to familiarize you with the following changes: […]

Comparing RAGAGEPs: Relief Valve Sizing

May 15th, 2018

It’s widely known that pressure vessels must be equipped with over-pressure protection (2015 ASME B&PVC UG-125), often in the form of a pressure relief valve. Properly sizing a relief valve requires engineering analysis which accounts for the type of over-pressure scenarios that might occur. In most cases, model codes and standards (RAGAGEPs) specify the relief […]