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 […]
San Joaquin County is sponsoring a CalARP Program Workshop that will feature training sessions from: Peter Thomas | Resource Compliance Jeanna Emmons | PSM RMP Solutions Jack Becker | Condor Earth Michelle Schlefstein | APCCO Contact the San Joaquin County Environmental Health Department to register for the event. Event Details Date: March 4, 2020 Time: 7:30 am – Noon […]
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 […]
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