Submersible pumps are NOT designed for pumping which types of liquid?

Submersible pumps are specifically designed for applications where they can be submerged in the liquid they are pumping. They are widely used for pumping freshwater and clean water due to their efficiency and reliability in that context. However, when it comes to heavy oils, these substances have a much higher viscosity compared to water, which presents significant challenges for submersible pumps.

Heavy oils often require specialized pumps that can accommodate their thick and gooey nature. Standard submersible pumps may struggle with heavy oils because they are not engineered to handle the same resistance and flow characteristics that heavy oils present. As a result, using submersible pumps for heavy oils can lead to operational issues, increased wear, and potential failures.

In contrast, submersible pumps can effectively manage both industrial wastewater and low-viscosity liquids like freshwater and clean water without significant issues, making them unsuitable for heavy oils in this scenario.