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 […]
ANSI/IIAR 6-2019 Table 12.5 summarizes the minimum ITM requirements for eyewash and safety showers. We’ve written about tests of eyewash and safety showers in the past, and thankfully IIAR 6 does not introduce any new ITM tasks, but instead repeats the requirements which were previously published in ANSI/ISEA Z358.1-2014. In lieu of copying Table 12.5 […]
Ground is broken on a new ammonia refrigeration training facility in this week’s edition of the Ammonia Week in Review… New Training Facility Breaks Ground in Northwest Arkansas – Northwest Technical Institute in Springdale had a ceremony at the future site of the school’s expanded Ammonia Refrigeration, Industrial Maintenance, and Boiler Operation facility. […keep reading] Pipe Corrosion (IIAR […]
In Part 12 of our series on ANSI/IIAR 6-2019 we examined the ITM requirements related to pressure vessel corrosion. While many of the same principles apply, it is fitting to explore unique considerations when inspecting ammonia pipe. Table 11.1 requires non-insulated ammonia pipes to be inspected annually for pitting and surface damage (Inspection Item A). […]
Pipe and vessel corrosion has been a regular cause of ammonia releases since the invention of the vapor compression refrigeration cycle. For this reason, it is appropriate that ANSI/IIAR 6-2019 prescribe the minimum requirements for inspection, testing, and maintenance of pressure vessels. ANSI/IIAR 6-2019 Table 10.1 requires that non-insulated pressure vessels be inspected annually for […]
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