The Jockey pump can meet the design standards of NFPA20, EN12845, GB6245 and other products, and is used to maintain the pressure from the pipe to the inside, and to pressurize and stabilize the pipeline; The jockey pump has different types according to different use fields, including vertical in-line pump, end suction pump, vertical turbine pump, submersible deep well pump, and can be applied to seawater medium