In industrial production and daily life, when water circulation, water transfer, dosing, spray, spraying, flushing, irrigation, shower, transfer, lifting, cleaning and other applications are need micro water pumps, micro-liquid pumps, small water pumps, micro-pumping pumps, micro-pumping machines and other micro-pumps are needed.And the miniature pump, the miniature liquid pump, the miniature pump and so on have an important parameter is "suction".
The term "suction distance", also known as "maximum self-suction height", can also be understood as "self-absorption degree".That is, the micro pump can automatically draw the water up the maximum height pump pump vertical distance to the pumping surface.When the water source is lower than the pump, the pump needs to be self-priming.For example, when traveling outdoors, water needs to be pumped from the river.Or the liquid may be corroded, not convenient to add water, and other occasions.
In the micro pump, not all pumps have self-suction capacity "suction stroke".Some centrifugal pumps have no self-priming capacity and must be watered for the first time.Although some micro pumps also have self-priming ability, but mark "suction path" often with "air in the inlet pipe is all" below, the vertical height that can draw water has a difference, perhaps even half is less than. Therefore, suction distance is an important parameter when selecting pumps.