Description
Submersible Water Pump 7.5 HP
A Submersible Water Pump 7.5 HP is one of the best pumps for deep boreholes, irrigation, and large water supply systems. In Kenya, this pump is widely used in farms, schools, apartments, hotels, and homes with deep boreholes. It is powerful, reliable, and designed to pump water from deep underground to tanks or irrigation systems.
This guide explains everything about the Submersible Water Pump 7.5 HP including how it works, prices in Kenya (2026), specifications, performance, how to choose, installation tips, and FAQs.
Quick Summary Table – Submersible Water Pump 7.5 HP
| Feature | Details |
|---|---|
| Pump Power | 7.5 HP (5.5 kW) |
| Power Supply | 415V Three Phase |
| Maximum Head | 150 – 180 meters |
| Flow Rate | 60 – 400 Liters per minute |
| Borehole Size | 4 inch or 6 inch |
| Outlet Size | 2 – 2.5 inches |
| Use | Borehole, Irrigation, Tank Filling |
| Price in Kenya 2026 | KES 85,000 – 250,000 |
| Lifespan | 5 – 10 years |
| Installation Cost | KES 20,000 – 40,000 |
What Is a Submersible Water Pump 7.5 HP?
A Submersible Water Pump 7.5 HP is a powerful electric pump installed inside a borehole or deep well. The pump works while fully submerged in water and pushes water to the surface.
The term 7.5 HP means 7.5 Horsepower, which is a measure of motor power. This makes the pump suitable for deep boreholes and high water demand.
Unlike surface pumps, a submersible pump pushes water instead of pulling water. This makes it more efficient and reliable for deep wells.
Main Features
- Installed inside borehole
- Works underwater
- Uses electricity (3 phase power)
- Pumps water from deep boreholes
- High pressure and high flow
- Long lifespan
- Low noise operation
Where a Submersible Water Pump 7.5 HP Is Used
This pump is commonly used in many water supply projects in Kenya.
Common Applications
- Deep borehole water pumping
- Farm irrigation systems
- Filling water tanks
- Apartment water supply
- Schools and hospitals
- Livestock watering
- Hotels and lodges
- Community water projects
- Greenhouse irrigation
- Solar water pumping systems
It is best for places where the borehole depth is more than 80 meters.
How a Submersible Water Pump 7.5 HP Works
A Submersible Water Pump 7.5 HP works using an electric motor connected to impellers.
Working Process
- Electricity powers the motor.
- The motor rotates the impellers.
- The impellers push water upward.
- Water moves through delivery pipes.
- Water reaches the tank or irrigation system.
Because the pump is underwater:
- It stays cool
- It is quiet
- It does not lose suction
- It is very efficient
Technical Specifications – Submersible Water Pump 7.5 HP
| Specification | Details |
|---|---|
| Power | 7.5 HP |
| Kilowatts | 5.5 kW |
| Voltage | 415V |
| Phase | Three Phase |
| Max Head | 160 meters |
| Max Flow | 400 L/min |
| Outlet | 2 – 2.5 inch |
| Motor Type | Oil filled / Water filled |
| Cooling | Water cooled |
| Cable Size | 4mm – 6mm |
| Borehole Size | 4 inch / 6 inch |
| Warranty | 12 months |
Submersible Water Pump 7.5 HP Performance Table
The performance of a pump depends on borehole depth (head) and flow rate.
| Head (Meters) | Flow Rate (Liters/Minute) |
|---|---|
| 60 m | 400 L/min |
| 80 m | 300 L/min |
| 100 m | 220 L/min |
| 120 m | 160 L/min |
| 140 m | 100 L/min |
| 160 m | 60 L/min |
As the pumping height increases, the water flow reduces. This is normal for all borehole pumps.
Submersible Water Pump 7.5 HP Price in Kenya
Prices vary depending on brand, head, flow rate, and material quality.
Price Guide Table
| Brand | Price Range (KES) |
|---|---|
| Varuna | 85,000 – 100,000 |
| Dayliff | 90,000 – 110,000 |
| CRI | 95,000 – 120,000 |
| Pedrollo | 130,000 – 150,000 |
| Grundfos | 180,000 – 250,000 |
Installation Costs in Kenya
| Item | Cost (KES) |
|---|---|
| Installation Labour | 10,000 – 20,000 |
| Submersible Cable | 300 – 500 per meter |
| HDPE Pipe | 250 – 400 per meter |
| Control Panel | 15,000 – 30,000 |
| Transport | 5,000 – 10,000 |
Total installation cost usually ranges between KES 20,000 – 40,000.
Factors That Affect Submersible Pump Prices
Several factors affect the price of a Submersible Water Pump 7.5 HP.
Price Factors
- Borehole depth
- Pump head
- Flow rate
- Brand
- Stainless steel vs cast iron
- Motor type
- Control panel
- Cable length
- Installation costs
- Warranty period
- Availability of spare parts
How to Choose the Right Submersible Water Pump 7.5 HP
Choosing the correct pump is very important for borehole performance.
Things to Consider
1. Borehole Depth
Measure the total borehole depth and water level.
2. Required Water Flow
Estimate how much water you need per day.
3. Pump Head
Head = Vertical height + pipe friction + tank height.
4. Power Supply
Most 7.5 HP pumps require three phase power.
5. Borehole Diameter
Make sure the pump fits inside the borehole casing.
6. Pump Material
Stainless steel pumps last longer than cast iron pumps.
7. Spare Parts Availability
Choose brands with spare parts available in Kenya.
Benefits of a Submersible Water Pump 7.5 HP
There are many advantages of using a Submersible Water Pump 7.5 HP.
Benefits
- Suitable for deep boreholes
- High water pressure
- High flow rate
- Quiet operation
- Energy efficient
- Long lifespan
- Low maintenance
- Works with solar systems
- Reliable for irrigation
- Good for large water demand
- No priming required
- Reduced risk of cavitation
This pump is ideal for large farms, apartments, schools, and commercial buildings.
Installation Tips for Submersible Water Pump 7.5 HP
Proper installation is very important to avoid pump damage.
Installation Tips
- Use a professional borehole technician
- Install a control panel
- Install a non-return valve
- Use proper submersible cable
- Use HDPE or GI pipes
- Install dry run protection
- Install overload protection
- Secure the pump with safety rope
- Do not install pump at the bottom of borehole
- Install pump at least 3 meters above borehole bottom
Maintenance Tips
Maintenance helps the pump last longer.
Maintenance Checklist
- Check pump every 6 months
- Inspect cables and joints
- Check control panel
- Clean filters if water has sand
- Check voltage supply
- Replace worn-out pipes
- Install surge protection
- Monitor water flow and pressure
A well-maintained pump can last more than 8 years.
Common Problems and Solutions
| Problem | Cause | Solution |
|---|---|---|
| Pump not starting | No power | Check electricity |
| Low water flow | Blocked pipe | Clean pipes |
| Pump trips | Overload | Check voltage |
| No water | Low water level | Lower pump |
| Pump noisy | Worn bearings | Service pump |
| High power bill | Wrong pump size | Use correct pump |
Is a Submersible Water Pump 7.5 HP Right for You?
A Submersible Water Pump 7.5 HP is suitable if:
- Your borehole depth is above 80 meters
- You need a lot of water per day
- You have a farm irrigation system
- You supply water to apartments
- You supply water to a school or hospital
- You fill large water tanks
- You have three phase power
- You use solar water pumping system
- You run a commercial water project
If your borehole is shallow, you may not need a 7.5 HP pump.
Key Takeaways
- A Submersible Water Pump 7.5 HP is ideal for deep boreholes.
- It can pump up to 400 liters per minute depending on depth.
- It is used for irrigation, homes, apartments, and water projects.
- Prices in Kenya range from KES 85,000 to 250,000 in 2026.
- Installation costs range from KES 20,000 to 40,000.
- Choose the pump based on borehole depth, head, and water demand.
- Proper installation and maintenance increase pump lifespan.
- Always ask for pump performance curve and datasheet before buying.




Reviews
There are no reviews yet.