The NK Series are single phase drainage pumps capable of large flows at high heads. Constructed in superior grade materials throughout they give exceptional performance in harsh operating conditions. The hydraulic area features a double mechanical seal, with an oil lifter, for positive seal lubrication in any operating position. The top discharge design forms a water and air-cooling channel and this, combined with a high-performance motor, enables long periods of operation in seepage conditions. Each model has an integral starting capacitor.