Submersible pump

Submersible pumps are centrifugal pumps whose hydraulic components (pump casing, impeller, diffuser element) are flooded by the fluid handled. Usually, this type of pump is not fitted with a suction line.

A submersible pump whose motor is arranged above floor is referred to as a vertical shaft submersible pump. 

This type is typically used as

• irrigation pump see Fig. 2 irrigation pump,
• deep-well turbine pump,
• chemical pump see Fig. 4 chemical pump
• drainage pump see Fig. 1 drainage pump
• cooling water pump see Fig. 1, 2, 3, 6, 7 cooling water pump,
• tubular casing pump,
• pump for use in low-lift pumping stations see Fig. 1 pump for use in low-lift pumping stations
• tank farm pump.

IPumps whose motor is flooded in addition to the hydraulic components are referred to as submersible motor pumps.

This type of pump is used as a

• waste water pump   see Fig. 2, 3 und 5 waste water pump
• irrigation pump see Fig. 1  irrigation pump
• drainage pump see Fig. 2 drainage pump,
• cooling water pump see Fig. 5 cooling water pump,
• tubular casing pump
• Pump for use in low-lift pumping stations see Fig. 2 Pump for use in low-lift pumping stations

The same principle is used for submersible borehole pumps.