Variable Speed Pumping
The Hydraulic Institute and Europump (Parsippany, N.Y.) published a new guide ($95) for designing, specifying and operating successful variable speed pumping systems for lowering energy, maintenance and life cycle costs. This guide outlines various types of pumps and variable speed and variable frequency drives for multiple applications. System and performance curves, control principles, selection process, financial justification, tables, illustrations, color photographs, case studies and flow charts have been included to help clarify the appropriate specification methodology.
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