Marketing InformationSQ pumps feature an innovative motor design incorporating permanent magnet technology. By combining permanent magnet motors and a Grundfos micro frequency converter, we are able to deliver unmatched performance and the ability to control and communicate with the pump in ways never before possible. A few of the features that result from this combined technology are constant pressure control, Soft-Start and Integrated dry run protection, but these are just a few of the features these pumps offer. SQ pump models operate at a constant speed much like today's conventional pumps. SQE pumps are equipped with a Grundfos "Smart Motor". Like the SQ models, SQ pumps have a high-efficiency permanent magnet motor but we add the ability to communicate.