Series Grundfos - MAGNA3

Grundfos MAGNA3 Series

The Grundfos MAGNA3 series is a complete line of smart circulation pumps built for modern heating, cooling, and domestic hot water systems. This collection covers a wide range of sizes and connection types, from compact threaded models to larger flanged units. Every pump in the series is engineered to fit standard installation spaces, making it easy to upgrade older systems without redesigning your piping layout. The lineup includes models with 25 mm to 65 mm pipe connections and PN6/10 or PN10 pressure ratings, covering everything from small residential loops to large commercial circuits.

Smart Energy Savings for Every System

These pumps feature AutoAdapt technology, which automatically adjusts to changes in your heating or cooling network. You do not need to manually fine-tune pressure or flow settings during commissioning. The pump senses system demand and runs only at the power required. This smart operation cuts electricity use by up to 70 percent compared to older models. Installers will save time on setup while helping clients lower their energy bills.

Easy Installation and Quick Commissioning

The MAGNA3 series is designed for fast, hassle-free mounting. The dimensions and mounting footprint match previous generations, so you can replace existing pumps in minutes. Models are available in standard threaded and flanged versions to match different pipe diameters. Setup is straightforward with clear LED status lights and simple control buttons. You can quickly switch between constant speed, differential pressure, or external control modes to match project specifications. Whether you need a compact 25-40 unit for tight spaces or a heavy-duty 65-180 model for high-flow applications, the series provides the right match for your job.

Remote Monitoring and Quiet Operation

Every MAGNA3 pump includes built-in WiFi connectivity. Using the Grundfos GO Remote app, you can check pump status, adjust settings, and run diagnostics directly from your smartphone. This feature reduces the need for physical access during service visits and makes it easier to show building owners how their system is performing. The advanced motor design also delivers very quiet operation, keeping noise levels low in residential and commercial spaces.