Wet rotor circulation pump ALPHA2 25-40 N 130 1x230V 50Hz 6H 99411272

Circulation pump – efficient heating and energy saving

The Grundfos ALPHA2 25-40 N circulation pump is an advanced solution for central heating installations, characterized by exceptional energy efficiency. Thanks to the use of innovative technologies, the pump minimizes electricity consumption while ensuring optimal thermal comfort in your home. It is an ideal choice for both new and modernized heating installations.

Design and application

ALPHA2 25-40 N is designed to work with installations with constant and variable flow, including underfloor heating and domestic hot water recirculation systems. Its versatility makes it suitable for single-family homes, apartments and commercial buildings. Made of high-quality stainless steel (grade 304 – 1.4308) ensures durability and corrosion resistance, even in harsh working conditions. Connections with a diameter of 1 ½ inch (40 mm) with a BSPP external thread facilitate installation and integration with the existing installation.

Advantages and benefits for the installer and user

• Energy saving: Energy efficiency class (EEI) at level 0.15 guarantees minimal electricity consumption – even up to 80% less than in the case of older pump models (class D). This translates into lower electricity bills and a smaller environmental impact.
• Intelligent control: The built-in motor speed controller allows for smooth adjustment of the pump speed, adapting it to current heating needs. The AUTOADAPT function automatically selects optimal operating parameters, ensuring maximum efficiency and comfort.
• Easy installation and operation: The innovative plug simplifies the electrical connection, and the intuitive LED display shows the current power consumption and informs about any failures (e.g. impeller blockage, voltage drop).
• Dry-running protection: The pump is equipped with a system protecting against dry running, which extends its lifespan and prevents damage.
• Reliability: High-quality materials and solid construction guarantee long-lasting and trouble-free operation of the pump.
• Wide temperature range: The ALPHA2 25-40 N pump can operate in a temperature range from 0 to 110°C, making it suitable for various heating applications.
• Quiet operation: Low noise level (below 43 dB(A)) ensures comfortable use.

The ALPHA2 pump is not only an energy-saving solution, but also an investment in the comfort and reliability of the heating system. Its advanced features facilitate installation, configuration and monitoring of operation, and the high quality of workmanship guarantees long-term, trouble-free use.