What is the difference between an open impeller and a closed impeller?
Closed type has high efficiency and is more suitable for high pressure situations, but it is expensive to manufacture and also relatively heavy. The open type is cheap and light, but the leakage loss is large and the efficiency is low, and it is not suitable for high pressure.
Open impeller or semi-open impeller can be used for media containing trace amounts of slurry。
The closed impeller has high efficiency and is difficult to manufacture, and is most used in pipeline pumps. It is suitable for conveying clean liquids with low viscosity and no particles, such as clean water and solutions.
