Adaptive N® impeller solves clogging for small wastewater pumps

Clogging is the most common problem in wastewater pumping and a particular issue for small pumps due to their limited hydraulic space and lower torque. The consequences of clogging include increased energy consumption, additional maintenance, and emergency call-outs, all of which result in higher operating costs. Wastewater pump manufacturers are continually striving to develop improved hydraulics that reduce clogging while maintaining high performance.

The Adaptive N hydraulic design, an evolution of self-cleaning N-hydraulics to address the challenges of small pumps, offers a marked improvement in pump system stability, with reduced costs for energy consumption and unplanned maintenance.

With the adaptive technology, the N-impeller is not totally fixed on the shaft: it can move axially up and down in response to a pressure differential created by large debris trying to pass through the pump. The movement temporarily increases the clearance between the impeller blades and the insert ring, allowing the bulkiest rags and the toughest debris to pass smoothly through the pump, without the need for extra motor torque.

Adaptive N impeller pumps can be installed in screened and unscreened sewage stations, pumping wastewater from households, commercial buildings, hospitals, schools, and more. They can also be used in industrial effluent and stormwater run-off that may carry solids, fibers and other types of waste.

Download the white paper to explore:

• The effect of hydraulic design on clog resistance in modern wastewater
• Self-cleaning N-hydraulics development
• The operating principle of Adaptive N technology
• Life cycle cost analysis for small wastewater pumps