Pipes are one of the areas of an ammonia refrigeration system most vulnerable to leak. Systems often have hundreds, or even thousands of feet of ammonia pipes serving a variety of purposes. Historically, IIAR Bulletin No. 110 has been the RAGAGEP which governs ammonia pipe inspections and maintenance. §6.7.1 requires that: All uninsulated piping and […]
During a recent Mechanical Integrity Inspection, I ran across a pipe that had been bent to facilitate proper joining during installation. My instinct was to view the bent pipe as a Mechanical Integrity deficiency. After reviewing the most current Refrigeration Piping Code (ASME B31.5 §529) I learned that pipe bending is allowed within the limitations defined in the code. Here’s […]
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