Grundfos MAGNA3 40-120 F High-Efficiency ECM Smart Circulator
Grundfos MAGNA3 40-120 F High-Efficiency ECM Smart Circulator
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Grundfos MAGNA3 40-120 F High-Efficiency ECM Smart Circulator
Engineered for light-to-medium commercial heating, chilled water cooling, and domestic hot water recirculation loops, the Grundfos MAGNA3 40-120 F is an intelligent, wet-rotor smart circulator pump built to deliver maximum hydraulic performance with minimal electrical power consumption. Driven by a cutting-edge permanent-magnet motor (ECM) and a fully integrated frequency controller, this pump continuously reads your hydronic network to automatically establish the most efficient operating speed, reducing electricity costs by up to 75% compared to traditional fixed-speed pumps.
The MAGNA3 40-120 F leverages Grundfos’s proprietary AUTOADAPT and FLOWADAPT technologies, which dynamically adapt the pump's performance curve to match moving system demands without needing manual balancing or engineering recalculations. Outfitted with an on-board heat energy tracking meter, wireless multi-pump synchronization for master/slave setups, and full capability to integrate into modern building automation systems (BMS), it represents the pinnacle of modern B2B hydronic distribution technology.
Key System Performance Baselines:
- Dynamic System Tuning: Built-in AUTOADAPT algorithms continually map the system load profile, optimizing flow delivery and eliminating the noise and pressure spikes caused by changing zone valves.
- Advanced ECM Efficiency: High-torque permanent-magnet motor architecture vastly reduces ongoing operating expenses and seamlessly satisfies strict commercial energy standards.
- On-Board Energy Auditing: An internal thermal calculator approximates system heat energy utilization over time, removing the need for costly external instrumentation loops.
- Flange Configuration: Designed with a standard 40mm inline cast iron flanged connection point, perfect for rapid, clean installation into standard commercial piping manifolds.
⚠️ Application Profile: This MAGNA3 circulator configuration is highly optimized for primary heating circuits in commercial properties, secondary hydronic mixing zones, chilled water fan coil supply lines, and solar thermal energy capture networks.
| Performance Parameter | Engineering Baseline Value |
|---|---|
| Manufacturer Part Number (MPN) | 98126832 (Quoted Active Configuration) |
| Pump Type | Wet-Rotor Smart Circulator Pump (ECM) |
| Port/Flange Size | 1-1/2" Flanged (40 mm / 4-bolt configuration) |
| Maximum Head / Max Pressure | 39 ft of Head / 175 PSI (12 bar) |
| Fluid Temperature Range | 14°F to 230°F (-10°C to 110°C) |
| Electrical Input / Voltage | 1-Phase (208-230V) 50/60Hz |
| Pump Housing Metallurgy | Cast Iron (EN-GJL-250) |
| Impeller Material | Composite (PES 30% GF) |
Corporate Procurement & PO Processing
Formal Purchase Orders (POs) and tax-exempt ordering are accepted for commercial contractors and institutional facilities.
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