Series Grundfos - MAGNA3
Grundfos MAGNA3
The Grundfos MAGNA3 series is built for modern heating, cooling, and hot water systems. These installation pumps are designed to save energy while delivering steady water flow. Whether you are working on a small residential setup or a large commercial building, the MAGNA3 line gives you the right pump for the job. The series covers single pumps, double circulation pumps, and dedicated hot water circulation models. All units are built to handle common system pressures like PN10 and PN16, and they come in threaded or flanged connections to fit your piping layout.
Smart Energy Efficiency for Installers
Every MAGNA3 pump uses advanced electronic control to match the exact needs of your system. You can set it to constant pressure, differential pressure, or automatic modulation. This means the pump only uses the power it needs, which cuts down on electricity bills and reduces wear on the motor. For installers, this translates to fewer callbacks and happier clients. The built-in sensors and smart electronics make tuning the system quick and straightforward, even in complex heating and cooling networks.
Wide Range of Installation and Circulation Pumps
The MAGNA3 catalog includes models for every common pipe size, from DN25 to DN80. You will find standard circulation pumps like the 25-40, 32-60, and 40-80, as well as high-head options like the 32-120. If your project requires hot water circulation, the MAGNA3 F series handles domestic hot water loops with ease. For larger systems, the double circulation pumps (MAGNA3 D) manage both heating and cooling circuits in one compact unit. All models run on standard 230V power and are ready to drop into most existing setups.
Easy Setup and Reliable Performance
Installers appreciate the MAGNA3 for its straightforward mounting and user-friendly controls. The pumps feature a dry-rotor design that reduces maintenance and extends service life. You can adjust settings directly on the pump or through optional sensor kits for remote monitoring. The robust construction handles everyday system fluctuations without overheating or losing pressure. Whether you are connecting a threaded pipe or bolting a flanged unit, the MAGNA3 fits securely and runs quietly from day one.
Accessories and Protection for Long-Lasting Use
To keep your MAGNA3 pumps in top shape, Grundfos offers matching thermal insulation covers. These covers are available for DN25 through DN80 sizes and help prevent condensation, reduce heat loss, and protect the motor from accidental damage. The sensor kits allow you to track system performance and fine-tune efficiency over time. With the right accessories and proper installation, the MAGNA3 series delivers years of trouble-free operation in both residential and commercial plumbing and HVAC projects.






