Roll over image to zoom
SKU: 99221213
Grundfos MAGNA1 25-80 Cast Iron Variable Speed Circulator Pump for Heat Pump Systems with Composite Impeller
Australia-Wide
(08) 9240 2992
Official Grundfos
Peace of Mind
Product Overview
Targeting systems with higher pipe resistance, the Grundfos MAGNA1 25-80 circulator pump provides electronically controlled variable flow for heat pump secondary loops and multi-storey heating circuits. Its internal variable frequency drive matches pump output to variable heating loads.
Manufactured from EN-GJL-200 cast iron, the 180 mm port-to-port casing holds a precision composite impeller and air-cooled electronic power module. The assembly is rated for 10 bar working pressure and circulating temperatures from -10°C to 110°C, weighing 4.41 kg.
The 1 x 230-240 V 50/60 Hz permanent magnet motor has a maximum power input (P1) of 9 W to 128 W while electrical input power (P1) draws between 9 W and 128 W with a maximum current of 1.03 A. The hydraulic section produces a flow of 5.09 m³/h (85 L/Min) against a maximum head of 5.113 m connected via 1 1/2 inch threaded ports.
Control options include three proportional pressure settings, three constant pressure curves, and three constant speeds. Certified to an Energy Efficiency Index of 0.20 with Class F insulation and an IPX4D enclosure, the pump includes digital start/stop terminals and a fault alarm output.
FEATURES
- Generates 8 m maximum head to overcome elevated friction in zoned circuits
- Permanent magnet motor and integrated inverter deliver an EEI rating of 0.20
- Operating power self-adjusts between 9 W and 128 W according to heat demand
- Cast iron EN-GJL-200 pump body engineered for 10 bar system pressure rating
- Composite impeller resists chemical attack in water-glycol heating mixtures
- Integrated fault relay and remote run/stop input simplify BMS wiring
- 180 mm port-to-port length with standard 1 1/2 inch threaded union fittings
SPECIFICATIONS
| Max Flow | 85 L/Min |
| Max Head | 8 m |
| Power | 85 W / 240v |
| Rated Current | 1.03 Amps |
| Suitable For | Heat Pump Secondary Loops |
| Body Material | Cast Iron |
| Liquid Temperature | '-10°C to 110°C |
| Inlet Size | 40 mm |
| Outlet Size | 40 mm |
| Warranty | 24 Months |
Warranty & Returns
All products supplied by Foundation Pumps are covered by a minimum 12-month warranty unless otherwise stated. Some brands may offer longer manufacturer warranties. Warranty covers manufacturing defects, faulty materials and workmanship under normal use.
- Products must be installed correctly and in accordance with the manufacturer’s instructions.
- Warranty does not cover incorrect installation, misuse, dry running, normal wear and tear, unauthorised repairs or damage caused by external factors.
- Proof of purchase, photos, videos and installation details may be requested when assessing a warranty claim.
- The customer is responsible for returning the product to Foundation Pumps or the nominated service centre unless otherwise agreed.
- Removal, reinstallation, labour and associated site costs are generally the customer’s responsibility unless required under Australian Consumer Law.
- Change-of-mind returns may be accepted within 30 days provided the product is unused, uninstalled and returned in its original packaging.
- Customers are responsible for return freight costs for change-of-mind returns.
- Restocking fees may apply to special-order, bulky or non-stocked products.
- Used, installed or specially ordered products may not be eligible for change-of-mind returns.
- If a product arrives damaged or faulty, please contact Foundation Pumps as soon as possible so we can assist with the appropriate repair, replacement or refund.
Your rights under Australian Consumer Law are not affected.
How deep can this pump be installed underwater in a wet well?
Thermal ratings for the Grundfos MAGNA1 25-80 accommodate working liquid temperatures -10°C to 110°C under standard operating pressure.
How high can this pump lift water vertically?
Pumping performance for the MAGNA1 25-80 provides up to 8 m of vertical dynamic lift, depending on system friction and line sizing.
What maximum flow rate does this pump achieve during heavy influx?
Moving liquid through the system, the MAGNA1-25-80 maintains an operational throughput of up to 85 L/Min during peak demand.
What corrosion-resistant materials are used in the wetted components?
Built with a resilient Cast Iron body, the MAGNA1 25 80 maintains material durability against fluid abrasion and wear.
How much power does the motor consume during standard operation?
Connecting across 240 V lines, the MAGNA1/25/80 draws approximately 1.03 Amps with an efficient 0.085 kW motor.
Need help choosing the right pump?
Our team of pump experts are here to help you find the perfect solution for your application.
- Free expert advice
- Pump sizing & system recommendations
- Fast response — call or email us