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General information ZW self-priming sewage pumps are integrator of the structures and performances of ZX self-priming centrifugal pumps and QW sewage pumps, the advantages of similar products home and abroad, and the operating requirements and proposals from the mass users. Provided with the functions of self-priming and sewage discharge, they don t need bottom valve and priming water, just like ordinary clean water self-priming pumps. They can pump feculence, deposit, mine dirt, ordure, sewage and gluey liquids containing large particles and long fiber, thus to lessen workers labor intensity. Besides, they are featured by ease of operation, movement and installation, very little repair and stable performance.
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