At our recent 2020 Ammonia Refrigeration Training Days, President and Senior Engineer Peter Thomas gave the keynote address. Peter, a member of the writing subcommittee, gave an overview of the new mechanical integrity standard: ANSI/IIAR 6-2019 Standard for Inspection, Testing, and Maintenance of Closed-Circuit Ammonia Refrigeration Systems. Watch the video:
An ammonia leak occurs at a water treatment plant in this week’s edition of the Ammonia Week in Review… Ammonia Leak Under Control at Asheboro’s Water Treatment Plant – The leak occurred as a contractor was performing maintenance on the above-ground anhydrous ammonia holding tank and encountered an equipment failure. […keep reading] Testing Compressor Safety Devices (IIAR 6, […]
Is it acceptable to test a high discharge pressure cutout (HPCO) by lowering the setpoint? Maybe. ANSI/IIAR 6-2019 §6.1.1 prescribes the allowable methods for testing a compressor HPCO which is required annually per Table 6.1. Depending on the type of pressure limiting device being used, allowable methods differ. Electromechanical Switch Electromechanical switches are widely used […]
Chapters 6-15 of ANSI/IIAR 6-2019 primarily consist of tables which summarize the minimum frequencies for the required ITM tasks. Each chapter addresses a different category of equipment: 6 – Compressors 7 – Refrigerant Pumps 8 – Condensers 9 – Evaporators 10 – Pressure Vessels 11 – Piping 12 – Safety Systems 13 – Overpressure Protection […]
An apartment is evacuated in this week’s edition of the Ammonia Week in Review… Ammonia Smell Forces Apartment Building Evacuation – A maintenance worker using ammonia caused the evacuation of an apartment building in the 1600 block of Birch Road Friday, with a hazardous materials team called in to clear the chemical. […keep reading here or here] Ammonia Leak […]
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