electric dewatering pump

The self-priming pump is a type of centrifugal pump that features a compact structure, convenient operation, smooth running, easy maintenance, high efficiency, long service life, and strong self-priming ability. It does not require the installation of a bottom valve in the pipeline, and before operation, only needs to ensure that a certain amount of liquid is stored inside the pump body. Different liquids can be handled by self-priming pumps with different materials. The working principle of the self-priming pump is to fill the pump casing with water (or the pump casing itself contains water) before starting the pump. After starting, the high-speed rotation of the impeller causes the water in the impeller channels to flow towards the volute casing, creating a vacuum at the inlet, which opens the non-return valve, allowing the air in the suction pipe to enter the pump and reach the outer edge through the impeller channels.