Single stage pumps and multiple stage pumps
Submersible pumps are found in many appliances. Single stage pumps are utilized for drainage, sewage pumping, common industrial pumping, and slurry pumping. Multiple stage submersible pumps are normally used for water abstraction. These pumps can also be found in oil wells. Moreover, submersible pumps can be positioned directly in a pond and require comparatively little installation. These pumps are also relatively silent.
The four main specifications that should be considered while choosing a submersible pump are maximum expulsion flow, maximum discharge pressure, horsepower, and discharge size.
Earlier, the main drawback of submersible pumps was that its pump seal could rupture and release oil coolant into the water. However, newer pumps are magnet-driven, and no longer require a coolant. These magnet-driven pumps are more expensive, but they consume less electricity.
2012-08-21