Grundfos ALPHA Solar 25-75 180 1x230V 9H Solar Circulation Pump PK25/332
- A few left in stock!
- High-efficiency circulator ALPHA SOLAR
High-efficiency circulator ALPHA SOLAR for use in solar thermal systems with variable or constant volume flow. However, high-efficiency pumps with electronically commutated motors (ECM), such as the ALPHA SOLAR, must not be controlled by an external speed controller that changes or varies the supply voltage.
The speed can be regulated via a pulse width modulated signal (PWM signal) supplied by the solar system controller to optimize solar energy yield and system temperature. This also significantly reduces the pump's power consumption.
If no PWM signal is available, the ALPHA SOLAR can be set to one of 4 constant speeds. The pump is then only switched on and off via the controller.
- Versions/Functions/Features:
- High-efficiency EC permanent magnet motor technology
- Energy Efficiency Index (EEI) ≤ 0.20 according to EN 16297-3: 2012 Best in Class
- PWM profile C. The PWM signal is a method for generating an analog signal from a digital source
- 4 constant speeds
- Maintenance-free
- Low noise
- Easy installation
- De-blocking screw
- Max. ambient temperature +70°C
Grundfos ALPHA Solar 25-75 180
- Item no.: 98989300
- Voltage: 1 x 230 Volt
- Frequency: 50 Hz
- Power: 2 - 45W
max. pressure: 10 bar
- Delivery height: 7.5 m
- Connection thread: 1 1/2 inch
- Installation length: 180 mm
- Condition: new (original packaging)
- Our item number: PK25/332
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Further information
- Manufacturer: Grundfos
- Installation length: 180 mm
- Condition: new
- Pipe connection: G 1 1/2" (47.8mm)
Secure shopping
All electrical equipment has undergone a VDE safety inspection.
Delivery & Shipping
- Austria: 1-2 working days
- Germany: 2–3 working days
- Europe-wide: 3–5 working days
Note:
For freight forwarding goods from 40 kg, the delivery time is 3–5 working days.







