N-Pumps have been engineered to provide efficient, reliable and trouble-free pumping over long duty periods. And by improving your operational economy, this new series of pumps can have a dramatic effect on the total life costs of your installation. At the heart of N-Pumps, you'll find the patented N-technology in the hydraulic end design. The unique semiopen impeller, combined with the relief groove in the volute, has been proven to reduce the risk of clogging and maintain pumping efficiency, even under the worst conditions.