One,Can a self-priming pump pump pump sewage?
There are many kinds of self-priming pumps. There are many questions about whether the self-priming pump can pump sewage and whether the self-priming pump can pump sewage. The self-priming pump of some conventional centrifugal closed impellers can’t pump sewage, because the self-priming pump of this impeller will block the impeller passage after particulate impurities enter the pump body. Self-priming pumps that can pump sewage usually adopt semi-closed impellers. For example, ZW sewage self-priming pump or BYZKW high-suction sewage pump, the self-priming pumps that can’t pump sewage are: ZX centrifugal pump, ZXB fluoroplastics corrosion-resistant self-priming pump, FPZ corrosion-resistant self-priming pump, ZCQ magnetic self-priming pump, BYZK high-suction self-priming pump, WGZ household self-priming pump, BYZG low-flow high-lift high-suction self-priming pump and so on. In short, the self-priming pump with closed impeller cannot pump sewage.
Second, what kind of self-priming pump is better for pumping sewage?
There are also many kinds of self-priming pumps that can pump sewage. There are several kinds of self-priming pumps that can pump sewage for users to choose according to the solid content, particle diameter and fiber impurity content of sewage. The conventional self-priming pump that can pump sewage belongs to ZW self-priming sewage pump, and the impeller belongs to semi-closed impeller, which is better than the fully closed impeller in passing through the particle diameter and is not easy to block.