The HD type diagonal flow pump is a vertical pump developed by integrating excellent domestic and foreign hydraulic models, reasonable structures and advanced manufacturing methods. It can convey clear water, rainwater, seawater and sewage with a temperature not exceeding 55℃. It is mainly applied in cooling water circulation pumps for power plants, seawater circulation pumps for seawater desalination plants, vaporization pumps for liquefied natural gas, etc. It can also be used for urban, industrial and mining, and farmland water conservancy water supply and drainage.