HD series large vertical single stage mixed flow pump is widely used for irrigation and drainage in large and middle water conservancy projects, adjust water level in mining industry and docks, civil water supply and drainage, delivering circulating water in power plant and etc. HD pumps are efficient with good cavitation performance and etc. They are suitable especially for those sites that require water level changes much and high head. The liquid delivered is water or other liquids with the similar physical and chemical properties. The highest temperature of the liquids is 50℃. But that for volute types could be 80℃(oil-impregnated bearing ).