self priming pump

There are many types of self-priming pumps, including molten salt pumps, self-priming pumps, vacuum pumps, submersible pumps, metering pumps, gear pumps, corrosion-resistant pumps, acid resistant pumps, and fire pumps. Then, it merges with water from the right return hole and flows along the volute. Due to the continuous impact of liquid on the blades in the volute and crushing by the impeller, it will vigorously stir and mix with air to form a gas water mixture, and continuous flow will prevent gas and water separation. The mixture is separated by the separation tongue at the outlet of the snail shell and enters the separation chamber along the short tube.

The air inside the separation chamber is separated and discharged through the outlet pipe, while the water still flows towards the outer edge of the impeller through the left and right return holes and mixes with the air in the suction pipe. This repeated cycle gradually exhausts the air in the suction pipe, allowing water to enter the pump and complete the self-priming process. Sewage pump, self-priming pump, oil pump, diaphragm pump, screw pump, and gear oil pump are the same, the difference is that the return water does not flow to the outer edge of the impeller, but to the inlet of the impeller.

When starting the internal mixing self-priming pump, the return valves at the front and bottom of the impeller must be opened to allow the liquid in the pump to flow back to the inlet of the impeller. Under the high-speed rotation of the impeller, water mixes with the air in the suction pipe to form an air-water mixture, which is then discharged into the separation chamber. Air is discharged here, and water returns to the impeller inlet through the reflux valve. Repeat this process until the air is expelled and the internal hybrid self-priming pump absorbs water, which works on the same principle as the external hybrid self-priming pump.

As a leading pump and valve manufacturer in the industry, ANHUI WOLONG PUMP&VALVE CO.LTD has always served the fields of chemical, power, metallurgy, environmental protection, etc. with high-quality and high-performance products. We not only provide high-quality products, but also offer professional technical support and after-sales service to ensure the long-term stable operation of you r equipment!