Submersible Pumps Comparisons
Submersible pump (Borewell) | Compressors | |
---|---|---|
Description | A pump which is coupled with a sealed motor and submerged inside a fluid. This then pumps the fluid, pushing it against gravity. |
Reciprocating compressors consist of a cylinder with a piston in which the exhaust stroke causes a suction port to open. This then draws fluid into the cylinder and the suction stroke pushes the fluid into the discharge port. |
Working principle | Fluid accelerated by the impeller loses it's their kinetic energy in the diffuser. This then causes a conversion of kinetic energy to pressure energy to take place. |
Converts power from an electric motor into potential energy and stores this in the form of pressurised air. This is kept in a tank that pumps the fluid from the source. |
Space | No separate space required to keep the assembly. |
Significant space is occupied based on the capacity. |
Applications |
|
|
Advantages |
|
|
Disadvantages |
|
|
Submersible pump (Borewell) | Centrifugal pump (Monobloc) | |
---|---|---|
Description | A pump which is coupled with a sealed motor and submerged inside a fluid. This then pumps the fluid, in turn pushing it against gravity. | A pump which allows fluid to enter through the eye of an impeller. The fluid then gains momentum inside the rotating vanes of the impeller and discharges through the volute casing. |
Working principle | The fluid is accelerated by the impeller, it loses their kinetic energy in the diffuser; where a conversion of kinetic energy to press the energy takes place. |
The fluid enters the pump impeller along or near to the rotating axis and is accelerated by the impeller, flowing radially outward into a diffuser/ casing, from where it exits. |
Application |
|
|
Installation & maintenance | Notably easy to maintain as the equipment is fully submerged. For more information on installation, see our guide. | Requires protection against wind and rainfall as the assembly is kept on the surface. For more information on installation, you can see our guide. |
Advantages |
|
|
Disadvantages | Possibility of dry run when the fluid yield is less (during summer). Can be difficult to repair. Occasionally sand can enter the pump (due to water source). Cannot handle solid particles. | Can overheat due to low flows. Can leak along the rotating shaft. Cavitation and corrosion more likely than a submersible pump. |