Grundfos MAGNA1 F Flanged Circulator Pumps (DN32–DN100)
Grundfos MAGNA1 32-80 F 220mm Circulator Pump 99221275
- Established 1975
- Trusted by thousands of customers
The Grundfos MAGNA1 32-80 F (part no. 99221275) is a single-head, cast iron, flanged circulator pump for heating, cooling and ground-source systems. It gives up to 8 m head, has a 220 mm port-to-port length and runs on a single-phase 230 V supply.
MAGNA1 offers nine settings across proportional pressure, constant pressure and constant curve, plus a fault relay and external start/stop input for BMS connection. Set-up and readout with the Grundfos GO app.
More about this product
The Grundfos MAGNA1 32-80 F 220 1x230V PN6/10 (Grundfos part number 99221275) is a single-head, cast iron, flanged circulator pump from the Grundfos MAGNA1 range. It delivers up to 8 m head, fits a 220 mm port-to-port gap and connects with a DN32 flange, PN6/10 combination. Power input is 9–151 W, so it uses only the energy the system needs at any moment.
MAGNA1 32-80 F specifications
| Model | MAGNA1 32-80 F 220 1x230V PN6/10 |
|---|---|
| Grundfos part number | 99221275 |
| Pump type | Single-head, cast iron, flanged circulator |
| Maximum head | 8 m |
| Port-to-port length | 220 mm |
| Pipe connection | DN32 flange, PN6/10 combination |
| Pressure rating | PN6/10 (max. operating pressure 10 bar) |
| Supply | 1 x 230 V |
| Power input P1 | 9–151 W |
| Current | 0.09–1.22 A |
| Energy Efficiency Index (EEI) | 0.20 |
| Liquid temperature | -10 to 110 °C |
| Pump housing | Cast iron EN-GJL-200 |
| Impeller | PES 30%GF |
| Insulation class | F |
| Enclosure class | X4D |
| Net weight | 7.5 kg |
| EAN | 5712608942488 |
| Warranty | 2 years (Grundfos) |
Figures from the Grundfos data sheet for 99221275. The pump curve is on the data sheet.
What the model code means
| Code | Meaning |
|---|---|
| MAGNA1 | MAGNA1: 9-setting control with fault relay and start/stop input |
| 32 | Nominal pipe size DN32 |
| 80 | Maximum head 8 m (code is in decimetres) |
| F | Flanged connections |
| 220 | Port-to-port length 220 mm |
| 1x230V | Single-phase 230 V supply |
| PN6/10 | Pressure rating: fits PN6 or PN10 counter-flanges |
Features
Applications
- Wet heating systems: radiators, underfloor heating and air-handling coils
- Chilled water and air-conditioning circuits (liquid down to -10 °C)
- Ground-source heat pump and solar heating circuits
- Light commercial buildings and larger domestic systems
Questions about this pump
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data sheet PDFDownload
Standard delivery:
Standard delivery is free on most orders. Some items may incur a delivery charge depending on weight, size or value. Any applicable charge will be displayed at checkout.
Deliveries will typically be made between 7am and 6pm, Monday to Friday (excluding public holidays).
Next day delivery:
Next working day delivery is available for a £16.50 + VAT delivery charge.
Orders must be placed before 12 noon to qualify for next working day delivery. Orders placed after 12 noon on Thursday but before noon on Friday will be delivered the following Monday. Orders placed after 12 noon on Friday will be delivered on Tuesday.
Pallet/Large/Difficult items:
Some large, heavy or difficult to transport items may incur an additional delivery charge. Please contact us for a delivery quote before ordering.
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Frequently Asked Questions
Quick answers to common questions about the Grundfos MAGNA1 32-80 F 220mm Circulator Pump 99221275. 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.



