Centrifugal self priming pumps are the ideal choice for water and light fuels when suction conditions are difficult. A standard centrifugal pump needs to have a suction pressure to operate. If however a pump is situated above the liquid level such as on top of a tank, then the pump needs to be self priming to draw the liquid in to the inlet. A self priming pump should have the casing filled with liquid prior to start up. Upon starting, the pump creates a vacuum ensuring liquid is drawn towards the inlet, separating the air from the water. The air is discharged through the outlet with the liquid remaining in the pump until sufficient liquid has been drawn up.
As the UK Agent of Azcue; an established manufacturer of centrifugal pumps of over 100 years, we have a large range of quality, long operating life self priming water pump models available from stock or fast track production.
Centrifugal self priming pumps are used for a variety of applications including:
Light fuel transfer
Inert gas cooling
Air conditioning supply
Self priming water pumps should be positioned as close as possible to the suction surface as the maximum distance any pump is able to self-prime is 10 metres at atmospheric pressure.