Grundfos SCALA2 Booster Pump

The Grundfos SCALA2 is a fully integrated, high‑efficiency, self‑priming booster pump designed to deliver perfect, constant water pressure throughout the home. With intelligent speed control, ultra‑quiet performance, and an all‑in‑one design, the SCALA2 is ideal for domestic and light‑commercial water‑boosting applications.

Perfect Constant Pressure

Thanks to its integrated variable‑speed drive, the SCALA2 automatically adjusts pump speed to maintain steady outlet pressure—even when multiple taps are used or inlet pressure fluctuates. An integrated pressure sensor continuously monitors conditions and fine‑tunes performance in real time.

All‑In‑One Compact Construction

Everything you need is built into one compact unit:

• Pump and high‑efficiency motor
• Integrated speed controller
• Pressure and flow sensors
• Built‑in pressure tank
• Non‑return valve
• Dry‑running, thermal, and leakage protection
  

This eliminates the need for external components, making installation simpler and cleaner.

Ultra‑Quiet Operation

The water‑cooled motor and sealed bearings deliver exceptionally low noise levels, as low as 44–47 dB(A) in typical use—quieter than most dishwashers—making the SCALA2 suitable for indoor installation near living spaces.

Fast & Easy Installation

SCALA2 is a true “plug‑and‑pump” solution requiring only a few steps:

1. Connect the pipes (inlet and outlet connections can adjust up to 5°)
2. Prime the pump
3. Plug it in and let the intelligent controller take over
   

The default pressure setting is 3 bar (43 psi) and can be adjusted through the simple user interface.

Strong Performance for Modern Homes

The SCALA2 is engineered for stable water supply in:

• Homes with up to 3 floors and 6–10 tapping points
• Properties experiencing fluctuating mains pressure
• Homes with multiple simultaneous water uses
  

Versatile Water Sources

Suitable for boosting from:

• City mains
• Roof tanks, break tanks, ground tanks
• Shallow wells up to 26 ft (8 m) suction lift