ZQB/HQB pump can be used for farmland irrigation and drainage, industrial and mining dock, urban construction, drainage of power station. ZQB submersible axial flow pump is suitable for the occasion of low head and large flow, and HQB submersible mixed flow pump is of high efficiency and perfect cavitation performance, suitable for the occasions of large fluctuation of water level and high head. The transmission medium is the water or other liquid similar to the water on physical and chemical property, the max temperature of transmitted liquid is 40℃.