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.
Product No.: 93013251
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:
- Connect the pipes (inlet and outlet connections can adjust up to 5°)
- Prime the pump
- Plug it in and let the intelligent controller take over
The default pressure setting is3 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
Technical
Rated flow 13.2 US gpm
Maximum flow 20.3 US gpm
Rated head 88.59 ft
Maximum head 147.6 ft
Primary shaft seal Carbon/Ceramic
Approvals cULus
Approvals for drinking water cULus NSF372,cULus DW NSF61
Max. pump speed 5200 rpm
Materials
Type key, code for materials A
Pump housing Composite, NORYL FE1630PW PPE+PS-GS30
Impeller Composite, NORYL FE1630PW PPE+PS-GS30
Material code A
Installation
Range of ambient temperature 32 .. 113 °F
Maximum operating pressure 145.04 psi
Maximum permissible inlet pressure 87 psi
Pipe connection standard ANSI B1.20.1
Type of inlet connection NPT(M)
Type of outlet connection NPT(M)
Size of suction port 1 inch
Size of outlet port 1 inch
Liquid
Pumped liquid Water
Liquid temperature range 32 .. 113 °F
Selected liquid temperature 68 °F
Density 62.29 lb/ft³
Electrical data
Power input P1 550 W
Rated power – P2 0.603 HP
Main frequency 60 Hz
Rated voltage 1 x 115 V
Minimum current consumption 0.2 A
Maximum current consumption 4.9 A
Enclosure type 3
Insulation class (IEC 85) F
Length of power cable 6.56 ft
Power plug US plug 115V
Controls
Type of connector Type B (NEMA 5-15)
Others
Net weight 21.4 lb
Gross weight 26.5 lb
Shipping volume 1.52 ft³
Storage temperature range -40 .. 158 °F
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