Grundfos MAGNA3 Screwed Circulator Pumps (25 & 32, 180mm)
The Grundfos MAGNA3 Screwed Circulator Pumps range covers 10 single-head, cast iron, screwed (union) circulators from 25 to 32, with maximum heads from 4 m to 12 m. Every model runs on a single-phase 230 V supply and carries a 2-year Grundfos warranty.
MAGNA3 is Grundfos's most advanced circulator: AUTOADAPT, FLOWADAPT/FLOWLIMIT, built-in pressure and temperature sensors, heat energy monitoring and optional BMS connection.
Grundfos MAGNA3 Screwed Circulator Pumps: model selector
| Model | Part no. | Port-to-port | Max head | Max P1 | Rating |
|---|---|---|---|---|---|
| MAGNA3 25-40 | 97924244 | 180 mm | 4 m | 50 W | PN10 |
| MAGNA3 25-60 | 97924245 | 180 mm | 6 m | 84 W | PN10 |
| MAGNA3 25-80 | 97924246 | 180 mm | 8 m | 124 W | PN10 |
| MAGNA3 25-100 | 97924247 | 180 mm | 10 m | 153 W | PN10 |
| MAGNA3 25-120 | 97924248 | 180 mm | 12 m | 185 W | PN10 |
| MAGNA3 32-40 | 97924254 | 180 mm | 4 m | 68 W | PN10 |
| MAGNA3 32-60 | 97924255 | 180 mm | 6 m | 103 W | PN10 |
| MAGNA3 32-80 | 97924256 | 180 mm | 8 m | 144 W | PN10 |
| MAGNA3 32-100 | 97924257 | 180 mm | 10 m | 180 W | PN10 |
| MAGNA3 32-120 | 98609707 | 180 mm | 12 m | 182 W | PN10 |
How to choose
- Match the pipe size and the port-to-port length of the pump you are replacing.
- Pick a maximum head above your system's needed head; the pump's control will turn it down to suit.
- Cast iron or stainless steel (N) housing, to suit the system.
- Twin-head (D) where the building cannot lose circulation if one pump head fails.
- MAGNA3 for AUTOADAPT, heat energy monitoring or fieldbus BMS communication; MAGNA1 for nine-setting control with a fault relay and start/stop input.
10 products
The Grundfos MAGNA3 25-40 (part no. 97924244) is a single-head, cast iron, screwed (union) circulator pump for heating, cooling and ground-source systems. It gives up…
The Grundfos MAGNA3 25-60 (part no. 97924245) is a single-head, cast iron, screwed (union) circulator pump for heating, cooling and ground-source systems. It gives up…
The Grundfos MAGNA3 25-80 (part no. 97924246) is a single-head, cast iron, screwed (union) circulator pump for heating, cooling and ground-source systems. It gives up…
The Grundfos MAGNA3 25-100 (part no. 97924247) is a single-head, cast iron, screwed (union) circulator pump for heating, cooling and ground-source systems. It gives up…
The Grundfos MAGNA3 25-120 (part no. 97924248) is a single-head, cast iron, screwed (union) circulator pump for heating, cooling and ground-source systems. It gives up…
The Grundfos MAGNA3 32-40 (part no. 97924254) is a single-head, cast iron, screwed (union) circulator pump for heating, cooling and ground-source systems. It gives up…
The Grundfos MAGNA3 32-60 (part no. 97924255) is a single-head, cast iron, screwed (union) circulator pump for heating, cooling and ground-source systems. It gives up…
The Grundfos MAGNA3 32-80 (part no. 97924256) is a single-head, cast iron, screwed (union) circulator pump for heating, cooling and ground-source systems. It gives up…
The Grundfos MAGNA3 32-100 (part no. 97924257) is a single-head, cast iron, screwed (union) circulator pump for heating, cooling and ground-source systems. It gives up…
The Grundfos MAGNA3 32-120 (part no. 98609707) is a single-head, cast iron, screwed (union) circulator pump for heating, cooling and ground-source systems. It gives up…
Frequently Asked Questions
Quick answers to common questions about the Grundfos MAGNA3 Screwed Circulator Pumps (25 & 32, 180mm). For technical specifications, see the product details above; for sizing or installation advice, contact our team. If you have any other questions, we're happy to help.
What types of Grundfos pumps are available?
Grundfos offers circulators, booster pumps, borehole pumps, drainage pumps and other solutions for domestic and commercial systems.
How do I identify the correct Grundfos pump model?
Use the model name and product number on the pump nameplate, then check the electrical, hydraulic and connection specifications.
Can a Grundfos pump improve household water pressure?
A suitably selected Grundfos booster system can improve water pressure or flow, subject to the property’s water supply and installation requirements.