Grundfos SCALA2 3-45 Smart Water Pressure Booster Pump
The Grundfos SCALA2 3-45 is an advanced automatic water pressure booster pump designed to provide reliable and consistent water pressure in residential properties.
Whether you are experiencing low shower pressure, weak taps or inconsistent water flow, SCALA2 intelligently adjusts its operation according to household water demand.
Its integrated variable-speed technology allows the pump to increase or reduce its speed automatically, helping maintain comfortable water pressure while avoiding unnecessary pump operation.
SCALA2 is designed for domestic applications including water pressure boosting from city mains, tanks and suitable wells. Grundfos states that it is optimized for residential buildings of up to 3 floors and 8 taps.
Smart Automatic Pressure Control
Unlike a conventional fixed-speed booster pump, SCALA2 continuously monitors water pressure and adjusts its operation according to demand.
When more outlets are opened, the pump increases performance. When demand decreases, it reduces operation accordingly.
This helps provide a more consistent water pressure experience throughout the home.
Quiet Operation
SCALA2 is designed for quiet residential operation. Grundfos currently promotes the newer SCALA2 generation with a typical-use noise level of 44 dB(A).
This makes it suitable for homes where reducing pump noise is important.
Compact All-in-One Design
The pump integrates multiple components into one compact unit, helping simplify installation.
The SCALA2 system incorporates the pump, motor, control electronics, pressure sensing and non-return functionality into a single booster solution.
Self-Priming
SCALA2 is a self-priming booster pump and can be used for suitable water sources where the suction conditions are within its operating limits. Grundfos documentation indicates pumping from depths of up to 8 metres under suitable conditions.
Suitable for Residential Water Pressure Boosting
SCALA2 can be used for:
- Low-pressure shower systems
- Residential water pressure boosting
- City mains pressure boosting
- Overhead/roof tank boosting
- Ground tank water supply
- Suitable well-water applications
- Multi-outlet residential water systems
- Villas and independent homes
- Houses up to 3 floors
Key Features
- Intelligent automatic pressure control
- Variable-speed pump technology
- Automatic operation
- Self-priming design
- Compact all-in-one construction
- Low-noise operation
- Dry-run protection
- Leakage detection
- Maximum-run protection
- Built-in pressure sensor
- Integrated non-return valve
- Suitable for indoor and outdoor installation
- Up to 3 floors
- Up to 8 simultaneously open taps
- Maximum system pressure: 10 bar
- Maximum head: 45 metres
- 1-inch inlet and outlet
- IPX4D protection
- 550 W maximum input power
Grundfos documentation specifies a maximum system pressure of 10 bar, maximum liquid temperature of 45°C, dimensions of 403 × 193 × 302 mm and weight around 10 kg.
Technical Specifications
| Specification | Details |
|---|---|
| Brand | Grundfos |
| Product | SCALA2 |
| Model | SCALA2 3-45 |
| Product Type | Automatic Water Pressure Booster Pump |
| Application | Residential Water Pressure Boosting |
| Pump Type | Self-Priming Booster Pump |
| Maximum Head | 45 m |
| Rated Head | 27 m |
| Rated Flow | 3 m³/h |
| Maximum Flow | 4.6 m³/h |
| Maximum System Pressure | 10 bar |
| Maximum Inlet Pressure | 6 bar |
| Maximum Liquid Temperature | 45°C |
| Maximum Ambient Temperature | 55°C |
| Maximum Floors | 3 |
| Maximum Simultaneous Taps | 8 |
| Power Input P1 | 550 W |
| Rated Motor Power P2 | 450 W |
| Voltage | 200–240 V |
| Frequency | 50/60 Hz |
| Inlet Connection | 1 inch |
| Outlet Connection | 1 inch |
| Protection Class | IPX4D |
| Insulation Class | F |
| Dimensions | 403 × 193 × 302 mm |
| Weight | Approx. 9.5–10 kg |
| Cable Length | Approx. 1.5 m |
| Pumped Liquid | Water |
| Installation | Indoor / Outdoor |
| Control | Automatic / Intelligent Variable-Speed Control |
The technical values above are based primarily on Grundfos product documentation; exact electrical plug/product-number configuration can vary by market and variant.
Applications
Residential Homes
Ideal for improving water pressure in homes where showers, taps or appliances experience insufficient pressure.
Villas
Suitable for multi-level villas requiring automatic pressure boosting.
Overhead Tank
Can be used to boost pressure from suitable roof/overhead tank systems.
Water Storage Tank
Can boost water pressure from suitable ground or break tanks.
City/Municipal Water Supply
SCALA2 can increase the pressure supplied by city mains where the incoming water supply is suitable for boosting.
Well Water
The self-priming design allows suitable well-water applications, subject to installation and suction limitations.
Why Choose Grundfos SCALA2?
Consistent Water Pressure
Automatically adjusts pump performance to match water demand.
Quiet Operation
Designed specifically for comfortable residential use.
Smart Technology
Built-in intelligent control continuously manages pump operation.
Compact Design
A single integrated unit reduces the need for multiple external components.
Automatic Protection
Includes functions such as dry-run protection and leakage/max-run detection.
Trusted Grundfos Engineering
Grundfos is an established pump and water-technology manufacturer with operations in India.
