Parallel pumping is an established application for improving efficiency in pumping systems with higher flows and variable load. Now, with the rise of sensorless pump control technology, parallel pumping systems can be further optimized for improved energy savings where remote sensors are not possible or practical.
In a parallel pumping system, the controller dynamically makes decisions based on what the current flow and head requirements show. While sensorless control technology enables variable speed adjustment, traditional staging based on fully loading each pump will not optimize the system. A smart controller combined with sensorless pumps can add high efficiency, backup capacity and potential savings on space and initial investment.