ZX/ZW self-priming pump manufacturers ZX and ZW series self-priming pumps produced by our factory are energy-saving pump products developed after absorption, digestion and improvement according to relevant technical data at home and abroad. The pump is a self-priming centrifugal pump, which has the advantages of compact structure, convenient operation, stable operation, easy maintenance, high efficiency, long life, and strong self-priming ability. There is no need to install the bottom valve in the pipeline, and only need to store quantitative primer in the pump body before work;