Borewell pumps, also known as submersible centrifugal pumps, are essential for extracting water from deep borewells. These pumps operate by submerging completely in water, ensuring efficient water supply for homes, agriculture, and industries. They are designed to handle various liquid types, making them versatile for different applications.
How to Choose the Right Borewell Pump
Selecting the right borewell submersible pump requires careful consideration of several factors:
- Motor Power (HP): Determined by the required horsepower, pump RPM, thrust load, and power supply availability.
- Well Diameter: Ensuring the pump fits within the borewell casing.
- Water Temperature: Affects pump performance and longevity.
- Overload Protection: Prevents motor burnout and ensures durability.
- Discharge Rate: The volume of water pumped per minute, measured in liters per minute (LPM) or gallons per minute (GPM).
For residential use, a typical 3 to 4-bedroom home requires 8-12 GPM. To estimate the required GPM for your household, add 1 GPM for each water fixture (taps, showers, dishwashers, etc.).
Understanding Pump Efficiency and Performance
The efficiency of a borewell pump depends on:
- Pump Quality: High-quality pumps last longer and run continuously for extended periods.
- Water Table Depth: Affects the lift capacity required.
- Sediment Levels: Clean water increases lifespan, while high sediment content can reduce pump longevity.
- Running Time: Top-tier pumps can operate for 20-24 hours straight without overheating.
Lifespan of a Submersible Pump
Submersible pumps are designed for long-term use since they are fully submerged in water, which helps in cooling and reducing wear. The lifespan of a submersible pump varies based on water conditions:
- Low sediment levels: Up to 15 years
- High sediment levels: Around 6 years
Regular maintenance and filtration systems can enhance pump longevity significantly.
Performance Specifications (Example for 5 HP Pump)
- Power: 5 HP
- Depth Capacity: 0 – 700 Ft
- Stages: 28-stage
- Flow Rate: 4 – 43 GPM (Varies based on TDH – Total Dynamic Head)
The deeper the borewell, the more powerful the pump required.
Choosing a Pump for Deep Borewells (700 Ft & Above)
For borewells deeper than 700 feet, a 6/7/8 HP series submersible pump is recommended. The HP (Horsepower) refers to the pump’s lifting capacity, crucial for handling extreme depths efficiently.
Before selecting a 6/7/8 HP pump, consider:
- Borewell depth and diameter compatibility
- Flow rate requirements
- Power supply availability (Single-phase vs. Three-phase)
- Energy efficiency and maintenance ease
Choosing the right pump ensures reliable water supply, reduced energy costs, and long-lasting performance.