Shanghai ZW self-priming pump/self-priming sewage pumpProduct Introduction;

Installation of ZW self-priming pump/self-priming sewage in ShanghaiIt is a hybrid system that combines self-priming and non clogging discharge, using axial reflux and passing through the pump body The unique design of the impeller flow channel, with a water self-priming height of 4-5 meters, does not require the installation of a bottom valve or water inlet in the pump front pipeline, and can directly suction the medium. The pump only needs to be refilled before initial use, and there is no need to refill the pump again for future use.

Installation of ZW self-priming pump/self-priming sewage in Shanghai

Compared with similar domestic products, it has a simple structure, good self-priming performance (self-priming height can reach 5m), strong sewage discharge capacity, high efficiency and energy saving, and easy maintenance (can completely replace WQ and QW submersible sewage pumps).
Product features:
1. Strong overcurrent capability: The special impeller anti blocking design ensures high efficiency and no blockage of the pump;
2. Efficient and energy-saving: using a hydraulic model, the efficiency is 3-5% higher than that of a general self-priming pump;
3. Good self-priming performance: The self-priming height is 1 meter higher than that of a typical self-priming pump, and the self-priming time is shorter than that of a regular self-priming pump.

Shanghai ZW self-priming pump/self-priming sewage pumpProduct structure diagram;

Shanghai ZW self-priming pump/self-priming sewage pumpPrecautions for use:

The shorter the suction pipeline, the better, with a length not exceeding 10M
If this pump is used to pump thick and viscous slurry, the pump chamber needs to be cleaned to prevent sediment from being left inside the pump.
3. When using a self-priming pump, the pump chamber still needs to be filled with water.
After 3000 hours of regular operation, the water pump needs to be disassembled, inspected, and maintained. If necessary, vulnerable parts that are no longer suitable for use should be replaced.
5. This pump can be customized with a direct connection type, which has high concentricity, enhanced stability, and is more economical, but maintenance may be a bit troublesome.
6. Environmental temperature ≤ 45 ℃, medium temperature ≤ 60 ℃.
7. The pH value of the medium is 6-9 for cast iron pumps and 1-14 for stainless steel self-priming pumps.
8. The particle diameter is 60% of the diameter of the self-priming pump, and the fiber length is 5 times the diameter.
9. The total weight of impurities in the medium shall not exceed 15% of the total weight of the medium, and the specific gravity of the medium shall not exceed 1240 kilograms per cubic meter.

Installation of ZW self-priming pump/self-priming sewage in Shanghai；
Installation of ZW self-priming pump/self-priming sewage in ShanghaiThe quality of pump installation has a significant impact on the operation and service life of the pump, so it must be carefully carried out.
1. The installation height of the pump suction port should not exceed 5 meters as much as possible, and special attention should be paid to the sealing of the suction pipeline to avoid air leakage and affect the self-priming capacity and normal operation of the pump.
2. At the outlet of the pump, a vertical pipe (usually 0.4-1 meters) and pressure gauge should be installed first, and then the outlet flow control valve and other pipelines should be installed.
3. Reasonably configure the length and diameter of the pump inlet and outlet pipelines to reduce unnecessary head loss along the way. (Reference can be made to the straight pipe friction loss summary table for estimation)
4. When transporting over long distances, larger pipe diameters should be selected. The pump pipeline should have its own support, and the pump body itself is not allowed to bear the load of the pipeline.
5. If a check valve is installed in the discharge pipeline, it should be installed outside the outlet flow control valve.