ZX type self-priming pump is a horizontal self-priming centrifugal pump, because the pump itself does not have a check valve, the structure is the simplest; Work the most reliable; Long working time, easy to maintain and use. Small size, light weight, high efficiency, in the design of the special consideration compared with the same caliber of the pump, large displacement, high performance. Applicable to urban environmental protection, construction, fire, chemical, pharmaceutical, dyeing, brewing, electricity, electroplating, paper making, petroleum, mining, equipment cooling, oil tanker unloading and so on.