We performed API 579 / ASME FFS-1 Fitness for Service on steel tanks for a brewery that had contacted us after one of their vertical tanks had failed.

Because of the age of this and other tanks, they were concerned about their structural integrity. Each glass-lined tank is 12 feet in diameter by 12′ 6″ in length and are used for fermentation and aging of beer.

The tanks were inspected in accordance with API 51. Fitness for service evaluations were performed in accordance to API 579-1/ ASME FFS-1. The results determined that the tanks had an expected life of 20+ years, provided they are properly maintained.


We perform API 579 / ASME FFS-1 on various types of equipment.
Give us a call to talk about your engineering needs.

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(PDF) “Weld Defects and Failures: Quantifying Fitness For Service – How Finite Element Mathematical Simulations can Mitigate Risk, Cut Costs and Improve Overall Safety”
Publications – Heat Exchangers, Pressure Vessels, Welds and Other Applications, Fatigue, Elevated Temperature
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