Self-priming is the ability to suction the air in the inflow channel as the pump is being started.
After installing the pump and before starting it, its body must be filled with water; once started, the rotary movement of the impeller creates a flow in the liquid present inside the pump body.
The physical principle of self-priming therefore consists in the strong depression generated at inflow. The principle is known as the Nozzle-Venturi system: the impeller suctions the water which, passing through the nozzle, increases in speed; after this, the speed decreases as the water passes through the Venturi pipe, this fast variation generates a depression inside the suction pipe. This depression allow to remove the air in the suction pipe ant the raises of the liquid level inside the inflow pipes.
Product overview:
WBZ(S) series pump is a stainless steel self-priming miniature electric pump developed by our company. The impeller of the pump adopts a semi-open structure. Due to the excellent structure, performance and shape of the product, it also has over-current components and connecting frames. Made of high-quality stainless steel, the two series of products have a series of advantages such as reliable corrosion resistance, convenient use and maintenance, compact structure, low energy consumption and good sealing performance.
Vortex self-priming pump technical parameters:
Model | Max Head m |
Rated Head m |
Rated Flow m³/h |
Max Head m |
Rated Power Kw |
Voltage V |
Caliber mm |
Gross Weight Kg |
Packing Size mm |
1WZB-15 | 8 | 2 | 2 | 30 | 0.37 | 220 | 8.1 | 220 | 30*20*25 |
1WZB-20 | 8 | 2.5 | 2.5 | 40 | 0.55 | 220 | 10.8 | 220 | 30*22*30 |
1WZB-25 | 8 | 3.5 | 3.5 | 50 | 0.75 | 220 | 12.9 | 220 | 32*22*30 |
Fully automatic vortex self-priming pump technical parameters:
Model | Max Head m |
Rated Head m |
Rated Flow m³/h |
Rated Head m |
Rated Power Kw |
Voltage V |
Caliber mm |
Gross Weight Kg |
Packing Size mm |
1WZB-12A | 8 | 0.8 | 12 | 0.125 | 0.125 | 220 | 25 | 8.9 | 30*22.5*29 |
1WZB-14A | 8 | 1 | 14 | 0.25 | 0.25 | 220 | 25 | 9.5 | 30*22.5*29 |
1WZB-16A | 8 | 1.2 | 16 | 0.37 | 0.37 | 220 | 25 | 9.5 | 30*22.5*29 |
1WZB-18A | 8 | 1.5 | 18 | 0.55 | 0.55 | 220 | 25 | 12.6 | 32.5*23*30.5 |
1WZB-22A | 8 | 1.8 | 22 | 0.75 | 0.75 | 220 | 25 | 13.5 | 32.5*24.5*34.5 |
1.5WZB-25A | 8 | 2 | 25 | 1 | 1.1 | 220 | 40 | 16.4 | 35.5*27.5*35.5 |
Intelligent dual control automatic vortex self-priming pump technical parameters:
Model | Max Head m |
Rated Head m |
Rated Flow m³/h |
Rated Head m |
Rated Power Kw |
Voltage V |
Caliber mm |
Gross Weight Kg |
Packing Size mm |
1WZ8-15F | 8 | 0.8 | 12 | 0.125 | 0.125 | 220 | 25 | 8.9 | 30*22.5*29 |
1WZB-14F | 8 | 1 | 14 | 0.25 | 0.25 | 220 | 25 | 9.5 | 30*22.5*29 |
1WZB-15F | 8 | 1.2 | 15 | 0.37 | 0.37 | 220 | 25 | 9.5 | 30*22.5*29 |
1WZB-20F | 8 | 1.5 | 20 | 0.55 | 0.55 | 220 | 25 | 12.6 | 32.5*23*30.5 |
1WZB-25F | 8 | 1.8 | 25 | 0.75 | 0.75 | 220 | 25 | 16.4 | 32.5*27.5*35.5 |