August 2011

Special Report: Fluid Flow and Rotating Equipment

Consider life-cycle costs in specifying control valves

Latest approach improves sizing valves while also incorporating total ownership investment

The life cycle of a control valve is divided into different phases. The resulting life-cycle cost (LCC) is mainly comprised of the acquisition investment and the follow-up costs for operations and maintenance. Depending on the valve type and operating conditions, these follow-up costs can account for a major share of the total investment. Thus, assessing the life cycle cost is increasingly gaining importance in valve sizing. Fundamentals of life cycle costing In the hydrocarbon processing industry, maintenance costs make up a fundamental share of the total costs for equipment. It is even more important than the investment to be amortized. Thus, plant operators strive using plant componen

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