The NL sewage sludge pump is the single stage vertical centrifugal pump, the major component has pumps the place, the impeller, the pump housing, supports the tube, the electricity composition and so on electric motor. pumps the place, the pump housing, the impeller nut is the pig iron makes, the anticorrosive = inoxidizability better processing craft is convenient. The impeller is three piece of Shan Yuanxian the curved leaf, selects partly seals up the impeller, and uses the malleable cast iron, therefore the intensity is high, anti-corrosive: Processes conveniently, passes the nature well, the efficiency is high. In order to reduce is loaded with four skeletons and the reduced turnings quantity, the petroleum high quality carbon steel garden steel manufacture. This pumps may be vertical or incline the use, the area slightly, must bury in the actuating medium works, is easy to start, does not have to pilot, the hand of rotation should from the television rear part look is clockwise works. The switchboard length has each kind of specification, in order to or acts as circumstances permit with the unit according to the use to select.