4kW Variable Speed Drive Booster Pump
VFI20-40 4kW VSD Booster Pump
The VFI20-40 is a high-performance 4kW variable speed drive booster pump designed for larger homes, lodges, estates, apartment blocks, commercial buildings and clean water pressure boosting systems.
This pump uses variable speed drive (VSD) technology to automatically adjust motor speed according to water demand. This helps maintain constant water pressure, reduce water hammer and improve overall system efficiency.
Applications
- Large residential homes
- Lodges and guest houses
- Apartment blocks and estates
- Commercial and retail buildings
- Industrial clean water boosting
- Storage tank and break tank booster systems
Key Benefits
- Constant pressure as water demand changes
- Energy-efficient inverter operation
- Soft start and stop to reduce water hammer
- Stainless steel multistage construction
- Digital pressure control and display
- Compact all-in-one booster system
Performance Curve – VFI20-40
The performance curve below shows the relationship between flow rate and head pressure for the VFI20-40 4kW VSD booster pump. This helps confirm the correct duty point before selecting the pump.
Click image to enlarge
Specification / Price
- Model: VFI20-40
- Power: 4kW
- Input Power: 380V three phase, 50Hz
- Max Amps: 8.7A
- Inlet and Outlet Size: G2 inch / 50mm
- Max Head: 52m
- Flow Range: 10 – 28 m³/h
- Pressure Gauge and Digital Pressure Display
- Diaphragm Pressure Vessel: 4 litre
- 100% Stainless Steel Wet-End
Model VFI20-40: PRICE ON REQUEST
Important Installation Note
The VFI20-40 booster pump must be supplied from a suitable water storage tank or break tank. It must not be installed directly on municipal supply. Correct suction pipe sizing, unrestricted pipework and proper installation are important for reliable pump performance.
Frequently Asked Questions
Can the VFI20-40 run directly off municipal water?
No. It must be supplied from a storage tank or break tank.
What voltage is required?
The VFI20-40 requires 380V three phase power.
What is the benefit of a VSD booster pump?
A VSD booster pump adjusts motor speed to match demand, giving constant pressure, smoother operation and lower unnecessary power usage.
Where is this pump normally used?
The VFI20-40 is suited to larger homes, lodges, estates, commercial buildings and clean water boosting systems supplied from a tank.
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