Recent Blog Posts

Video: Compressor Inspection Checklist – IIAR 6 Appendix B

August 22nd, 2023

Check out Resource Compliance’s free video on how to perform an IIAR 6 Appendix B Compressor Inspection Checklist. In this video presented by Resource Compliance, Peter Thomas, P.E. walks you through the steps necessary for completing the compressor checklist found in IIAR 6 Appendix B.  

Video: Overview of Ammonia Refrigeration Air Cooling Evaporators

March 21st, 2023

Check out Resource Compliance’s free video on ammonia refrigeration air cooling evaporators.

Pressure Vessel Inspection Checklist – IIAR 6 Appendix B

February 7th, 2023

Check out Resource Compliance’s free video on completing an IIAR 6 Appendix B Pressure Vessel Inspection Checklist.

Manufacturer Instructions and Ammonia Three-Way Relief Isolation Valves

May 29th, 2018

It is common practice in the ammonia refrigeration industry to install a three-way isolation valve upstream of relief valves protecting an ammonia refrigeration pressure vessel. For vessels larger than 10 ft3, this is required by most model codes and standards. These three-way valves allow a relief valve to be replaced without the hassle of pumping […]

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 […]