Pump is designed according to a certain speed, so necessary engine in addition to the power should meet the requirements of pump operating condition, in the speed should also be consistent with the pump speed. Causes the pump impeller rotational speed reduces the reason to have:
1. The pump itself mechanical failure. Impeller and pump shaft fastening nut loose or pump shaft deformation and bending, resulting in multi impeller, direct friction with the pump body, or bearing damage, it is possible to reduce the pump speed.
2. Motor maintenance efficiency is reduced. Motor due to the winding burn, and loss of magnetism, maintenance of the winding turns, wire diameter, wiring method changes, or the failure of the maintenance of the fault is not completely eliminated factors will make the pump speed change.
3. Human factors. Damage to the part of the user because of original motor, free with the other a motor driven resulting in a small flow and low lift even of Sheung Shui consequences.
4. Pump cavity with debris blockage will be winding, resulting in reduced speed of the impeller.
Therefore, the majority of users to understand the reason of pump pump speed is reduced, the use of true and reasonable water pump. Can improve the pump failure efficiency and pump service life.
