BPZ Series Strengthen Self-priming Pumps are suck centrifugal pump by oneself, pump have special structure to suck by oneself, put inside and flow outwards, there is not its electrical machinery and this pump is associative directly, this pump is high-efficient, it is good, small to suck performance by oneself, use easy to install, use and process the building site in field irrigation, draining off water, sprinkling irrigation, smelting and stone material extensively. This pump is especially suitable for the for draining off watering of factories and mines, urban running water, fire control and high pressure are washed etc.