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 […]
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 […]
Question: If two independent ammonia refrigeration systems share a water diffusion tank should they be considered one (1) or two (2) processes under RMP and PSM? Answer: This is a great question that addresses the issue of “co-location“. In order to correctly answer this question, we must first consider the definition of a Process. Title 40 §68.3 Process means […]
Ammonia keeps emergency responders busy in this week’s edition of the Ammonia Week in Review…… Ammonia Leak Reported At R.C. Bottling Plant Near Airport – Emergency crews have responded to an ammonia leak near the Louisville Airport at the 7up / R.C. bottling group in the 6200 block of Strawberry Lane. […keep reading] Ammonia Leak At New Bedford Business – An ammonia leak […]
Ammonia creates panic in this week’s edition of the Ammonia Week in Review…… 130 People Evacuated After Ammonia Leak – Early Saturday morning, McBride’s Volunteer Fire Department helped evacuate 130 people – nearly 20 per cent of the Village of McBride – after an ammonia leak was detected at the Robson Valley Recreation Centre. […keep reading] Flowers Tyson Food Plant Evacuated – The Tyson […]
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