Light oil pump cavitation
Thread Content
Let’s discuss what happens when a light oil pump starts pumping water. What about a heavy oil pump being used to pump light oil? First, I’ll talk about the situation where a light oil pump pumps water – it causes an overload current
The light oil pump can be used to pump water; the pump’s load can be controlled via the outlet valve, preventing overcurrent； It is generally used during maintenance.
The seal clearance of the heavy oil pump is relatively large, which results in a high amount of internal leakage when light oil is used. Additionally, the heavy oil pump has an oil sealing system; it’s not clear whether this will have an impact on that system
I don’t know; what kind of pump is this? In the case of a triple-screw pump, water ingress in a light oil pump can cause damage to the pump.
When the outlet is opened wide, the flow rate isn’t high; the waste oil pump we modified is used to circulate hot water, and the outlet can only be opened to 3-4 threads – if it’s opened wider, the flow rate drops.
Using heavy oil in a pump designed for light oil can result in insufficient flow rate due to factors such as changes in the density and composition of the fluid, as well as the pump’s own net positive suction head; this may prevent the outlet valve from opening fully or even lead to the pump running dry.