When it comes to pumping systems that have varying demands, many engineers are hesitant to size the pump to less than the highest possible load. While this is certainly conservative from a flow standpoint, the downside is that additional costs are incurred to mitigate what might be a small risk.
Proper lubrication is a key to long, trouble-free life of centrifugal pump bearings. In recent years, the issue of lubrication has received renewed attention from pump users in chemical plants, pulp and paper mills, refineries and other industries.
Though medium-voltage variable frequency drives (VFDs) are proven to improve operational efficiency and reduce costs, their electronic components can be negatively affected by the harsh environmental conditions in which large drives are commonly found.