The series of electric pump is suitable for cold and hot water pressurization cycles below 110 ºC, especially for supporting underfloor heating systems, such as automatic circulation pressurization of water distributors and water collectors; Booster water supply for hot water boilers and wall mounted boilers; Water cooled air conditioning and central air conditioning supporting facilities; Low water pressure household washing machine supporting, increasing the flow and pressure of tap water; Industrial liquid circulating water supply, with special engineering materials as the pump body, it is high-strength, corrosion-resistant, acid-base resistant and rust resistant, especially suitable for household hygiene water.