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In the demanding environment of coal-fired power generation, equipment reliability is paramount to minimizing downtime and operational costs. This paper presents a case study of a coal-fired power plant that faced recurrent bearing failures in turbine-driven pumps due to gearbox contamination from ash and moisture. These failures occurred every 9 months, resulting in 36-hour outages costing $250,000 each in repairs and lost revenue, plus an additional $75,000 annually in lubricant replacements.
By implementing SEPCO's advanced bearing isolators—featuring unitized designs with bronze stators, Viton O-rings and a tortuous path labyrinth with gaps less than 0.005 inches—the plant achieved a 99.9% reduction in contaminant ingress while allowing vapor expulsion. Learn more in this case study.
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