Part 9: This is a continuation of our blog series explaining how to perform an IIAR 6 Appendix B inspection of an ammonia pressure vessel. Item Q asks the inspector to verify that the sight glass is adequately protected from traffic, equipped with 360° guards, and configured with internal check valves if the glass breaks. […]
Part 8: This is a continuation of our blog series explaining how to perform an IIAR 6 Appendix B inspection of an ammonia pressure vessel. Items M and N ask if the vessel certification drawings and manufacturer data report are on file. The data report, commonly referred to as a U-1 or U-1A form, we […]
Part 7: This is a continuation of our blog series explaining how to perform an IIAR 6 Appendix B inspection of an ammonia pressure vessel. Item I in the checklist inquires if the pipes are marked as required by IIAR Standard 2. Standard 2 requires piping mains, headers, and branches to be labeled with the […]
Part 6: This is a continuation of our blog series explaining how to perform an IIAR 6 Appendix B inspection of an ammonia pressure vessel. Item D requires the inspector to verify that supports and anchorage are adequate. For a ground-mounted pressure vessel, the anchorage should be inspected to ensure nuts are tight and free […]
Part 3: This is a continuation of our blog series explaining how to perform an IIAR 6 Appendix B inspection of an ammonia pressure vessel. The final information required on the first page of the checklist pertains to the vessel relief valves. The manufacturer, model, pressure setting, and capacity can be obtained from the relief […]
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