The PN and PNL series mud pumps are single suction mud pumps that can be used by mines, enterprises, and institutions to transport liquids such as mineral sand and mud, with a maximum concentration of 50-60% by weight. PN type is horizontal; PNL type is vertical and can be immersed in liquid for use. The overcurrent components of the pump are made of high hardness and wear-resistant materials, with a long service life. The clearance between the impeller and the guard plate can be adjusted to keep the pump working in the high-efficiency zone.