Question: Do both relief valves on a dual assembly have to be replaced every five (5) years, or just the relief valve that has been subject to system pressure? Answer: Most pressure vessels in an ammonia refrigeration system exceed 10 cubic feet in volume (normal exceptions are oil pots and small oil separators), and therefore are […]
Ammonia tries to catch a flight in this week’s edition of the Ammonia Week in Review…… Meat Factory Near Prestwick Airport Evacuated After Suspected Ammonia Leak – Firefighters were called to the Hall’s of Scotland plant in Prestwick, South Ayrshire, at around 4.40am. Crews entered the Glenburn Road premises to isolate the leak after the night shift staff were accounted […]
Ammonia news, events, resources and leaks compose this week’s edition of the Ammonia Week in Review…… Ammonia Leak at Port De Grave Crab Plant – An ammonia leak caused a stir at a crab processing plant in Port de Grave Monday afternoon. […keep reading] Ammonia Leak Capped at Stockton Business – An ammonia leak that forced a number of businesses to shelter […]
Question: What is the correct NFPA 704 placard for an ammonia refrigeration system? Answer: This question has caused enormous confusion in the ammonia refrigeration industry, so I will attempt to bring some clarity to the issue. ANSI/IIAR 2-2008 Addendum B §13.1.10.4 requires that “Refrigerating systems shall be provided with approved informative signs, emergency signs, charts and […]
Ammonia gets caught in a regulatory bind in this week’s edition of the Ammonia Week in Review…… OSHA Cites Oklahoma Food Processor Over Ammonia Refrigeration Systems – The U.S. Occupational Safety and Health Administration has issued seven citations at an Oklahoma pork processing plant, recommending $51,000 in fines. […keep reading] Ammonia Leak Raises Questions re: Inspections – When was the last time someone died in […]
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