ArticlesPlant oil filter failure on compressor causes ammonia leak
This Alert is issued to inform employers, self-employed persons, designers, manufacturers and suppliers of ammonia plant of a recent incident involving the failure of an oil filter. Background The failure of an oil filter on an ammonia compressor caused an ammonia leak and subsequent evacuation. One person was admitted to hospital but was released after several hours observation. The filter had been installed approximately seven months prior to the leak. The filter consisted of a filter element contained in a stainless steel sump, with an o-ring seal, and a nickel plated brass locking ring (see figure 1). The locking ring split, allowing the pump to come off, and oil and ammonia to escape (see figures 2 and 3)... |
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