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Grundfos MAGNA3 Circulators


Best efficiency in its class

The MAGNA3 is an innovative member of the Grundfos family of high-quality circulator pumps designed for circulating liquids in heating, cooling, domestic hot water and solar heating systems. With a MAGNA3, you can stop worrying about complicated pump settings. Simply install the pump and leave it on the AUTOADAPT factory setting. The MAGNA3 will automatically analyse the heating system, find the optimum setting and then continuously adjust its operation to changes in demand. The result is optimum comfort and minimum energy consumption. In addition, MAGNA3 pumps are extremely flexible and reliable, and have low noise levels, long life and no maintenance requirements.

Features & Benefits:

  • AUTOADAPT ensures energy savings
  • FLOWADAPT and FLOWLIMIT
  • Proportional-pressure control
  • Constant-pressure control
  • Constant-curve duty
  • Maximum or minimum curve duty
  • Simple installation and ease of use
  • No maintenance and long life
Electronic and special order parts are not returnable. All sales are final.
Please check to make sure you have chosen the correct part.

Documentation: Grundfos_MAGNA3 Brochure.pdf


Part No. Qty Unit Price
↓   MAGNA3 Cast Iron Circulators   ↓
98126820 MAGNA3 32-60 Cast Iron Circulator, 115/230V Temporarily unavailable
98126824 MAGNA3 32-100 Cast Iron Circulator, 115/230V Temporarily unavailable
98126800 MAGNA3 40-80 Cast Iron Circulator, 115V $1249.65
98126828 MAGNA3 40-80 Cast Iron Circulator, 208-230V $1249.65
98126808 MAGNA3 40-180 Iron Circulator, 115V
Call for availability
$2176.31
↓   MAGNA3 Stainless Steel Circulators   ↓
98126822 MAGNA3 32-60 F N Stainless Steel Circulator, 115/230V
Temporarily unavailable
98126826 MAGNA3 32-100 F N Stainless Steel Circulator, 115/230V
Temporarily unavailable
98126810 MAGNA3 40-180 F N Stainless Steel Circulator, 115V
Call for availability
$2997.65
98126838 MAGNA3 40-180 F N Stainless Steel Circulator, 208-230V
Call for availability
$2997.65
98148727 MAGNA3 Control Box Cover with 5 screws
Special Order
$92.13
↓   Accessories   ↓
98046408 Bluetooth Dongle $365.60
96893769 BACnet Interface for Magna pumps $449.50
98471249 MAGNA3 Sensor control $185.25
↓   Grundfos Dielectric Isolation Valve Sets   ↓
96806135 3/4" Sweat Dielectric Isolation Valve Set (GF 15/26)
$37.52
96806136 1" Sweat Dielectric Isolation Valve Set (GF 15/26) $44.11
96806137 1-1/4" Sweat Dielectric Isolation Valve Set (GF 15/26) $49.18
96806138 1-1/2" Sweat Dielectric Isolation Valve Set (GF 15/26) $53.24
↓   Grundfos NPT Dielectric Isolation Valve Sets   ↓
96806132 1-1/4" NPT GF15/26 Flange Isolation Valve Set. $50.19

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