Recent Blog Posts

Valve Exercising and IIAR 6

September 29th, 2020

Ammonia refrigeration systems are typically configured with hundreds of valves that require maintenance to help ensure that they will function properly when adjusted from their normal position. ANSI/IIAR 6-2019 Standard for Inspection, Testing, and Maintenance of Closed-Circuit Ammonia Refrigeration Systems includes the minimum requirements for valve inspection, testing, and maintenance (ITM) in Table 11.1.6. Concerning […]

Ammonia Week in Review | April 3, 2020

April 3rd, 2020

Ag ammonia training is being offered online in this week’s edition of the Ammonia Week in Review… Online Anhydrous Ammonia Safety Training: April 7 – Anyone who works with anhydrous ammonia, especially those applying nitrogen fertilizer on crop fields, will be able to learn how to handle it safely during an online workshop North Dakota State University Extension’s Stark-Billings […]

Checklists: B109 vs. Appendix B (IIAR 6, Part 16)

March 31st, 2020

IIAR Bulletin No. 109 (B109) has been an integral part of ammonia refrigeration vernacular for over 20 years. “B109s” have been the gold standard for annual mechanical integrity inspections since the document was published in 1997. The ten easy to understand checklists which comprise most of the document have served our industry well during this […]

Ammonia Week in Review | March 20, 2020

March 20th, 2020

The IIAR Conference is canceled due to COVID-19 in this week’s edition of the Ammonia Week in Review… IIAR Cancels Ammonia Refrigeration Conference – The IIAR 2020 Natural Refrigeration Conference & Heavy Equipment Expo, due to start in Orlando, Florida on Sunday, has been cancelled due to the coronavirus. […keep reading] Relief Valve Replacement vs. Bench Testing (IIAR […]

Relief Valve Replacement vs. Bench Testing (IIAR 6, Part 15)

March 17th, 2020

Replacement of pressure relief valves (PRVs) every five (5) years has long been established as RAGAGEP in industry documents (IIAR Bulletin No. 109 and No. 110) and manufacturer literature. ANSI/IIAR 6-2019 §13.1.2 introduces an alternative for owners that desire to increase the service life of their PRVs. The alternate test method can extend the service […]