The ALPHA2 heating circulation pump from Grundfos is a highly efficient wet rotor pump specifically designed for heating applications. It utilizes state-of-the-art ECM technology with a permanent magnet motor that allows for stepless speed adjustment. This feature ensures optimal performance adaptation and energy efficiency. The pump is equipped with an AutoAdapt function that automatically finds the best setting for operation. Additionally, it offers an automatic night setback feature that further contributes to energy savings. The ALPHA2 is suitable for media temperatures ranging from +2 °C to +110 °C and meets the requirements of the Energy Saving Ordinance (EnEV). With a robust gray cast iron housing and a cathodic coating, it is also corrosion-resistant and durable. The pump comes with a thermal insulation shell that minimizes energy loss and further enhances efficiency.
Maximum flow rate | 0.04 l/min |
Power | 50 W |
Conveyor height | 8 m |
Max. Delivery pressure | 10 bar |
Item number | 21847021 |
Manufacturer | Grundfos |
Category | Water pumps |
Manufacturer no. | 99261738 |
Release date | 23.8.2022 |
Power | 50 W |
Conveyor height | 8 m |
Maximum flow rate | 0.04 l/min |
Max. Delivery pressure | 10 bar |
Protection type (IP code) | IP44 |
Power supply | Electrical connection |
Country of origin | Denmark |
CO₂-Emission | |
Climate contribution |
Length | 19.70 cm |
Width | 11.40 cm |
Height | 16.20 cm |
Weight | 2.33 kg |
Length | 23 cm |
Width | 18.80 cm |
Height | 11.30 cm |
Weight | 2.33 kg |
Product Safety |
How often does a product of this brand in the «Water pumps» category have a defect within the first 24 months?
Source: GalaxusHow many working days on average does it take to process a warranty claim from when it arrives at the service centre until it’s back with the customer?
Source: GalaxusHow often is a product of this brand in the «Water pumps» category returned?
Source: Galaxus