Serie ALPHA 1 L - Q-Tech ®

ALPHA 1L Series

Regular price€205,00
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You will soon find the spare parts for this product here.

ALPHA1 L, the universal circulation pump for Grundfos spare parts in boilers.

ALPHA1 L is the only replacement and renewal pump that fits 95% of boilers equipped with Grundfos pumps.

Thanks to its compact design, its simple connections, the external wired signal (PWM) and its tolerance to working with a high ambient temperature, ALPHA1 L fits perfectly with most boilers that incorporate Grundfos pumps independently of the pump brand. This allows easy replacement and replacement of damaged, old or inefficient pumps with virtually no need to use extra spare parts.

Superior energy efficiency

ALPHA1 L is not only an ideal and reliable option for replacing damaged pumps, but it also offers superior energy efficiency, making it the perfect option for renewing old and inefficient equipment.

ALPHA1 L features a highly energy efficient motor that consumes less than older models and can result in lower running costs.


  • Valid for 95% of boilers equipped with Grundfos pumps
  • Latest generation motor with superior energy efficiency and cost savings
  • Reliable operation and long service life
  • Silent operation, with low noise levels - 42-43dB(A)
  • High energy efficiency - EEI of 0.20
  • Great profitability
  • External speed control inside the boiler via external PWM input signal
  • Easy installation, high quality materials, reliable performance
  • Manual release screw accessible from the front of the pump

ALPHA1 L is the perfect pump to be installed in:

  • Boilers
  • Underfloor heating systems
  • Mixing units and boiler kits
  • Domestic hot water systems
  • Biomass heating


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Don't just trust our words.


Service 10!,

Problems with transportation and after a WhatsApp and a call the next day we received our robot.

They called us to confirm that everything was ok, highly recommended.

Esther L.S.

Marbella, Malaga


Material received in 48 hours,

20 minutes on the phone for installation questions and THANK YOU THANK YOU THANK YOU.

100% professionals

Alvaro P.

B. of Salamanca, Madrid


5 Stars. There are 5 of us and we are very happy with the hot water. After searching for information for almost a month on low-consumption hot water systems, we decided on b. heat only hot water. Delivery in just 3 days from the web order.

Delivery was delayed a day due to the height of the package but then everything was perfect.

Thank you :)

Angela R. and Lucas A.

El Limonar, Malaga