Description
Grundfos Magna3 40-180 GF — High-Efficiency Hydronic Circulator Pump
The Grundfos Magna3 40-180 GF (SKU 98126808) is a premium, electronically commutated motor (ECM) circulator pump engineered for superior energy efficiency and reliable performance in hydronic heating and cooling applications. Designed for commercial and residential systems alike, the Magna3 series represents Grundfos’ commitment to intelligent pump technology — delivering precise flow control, reduced energy consumption, and extended service life.
Key Features
- Model: Magna3 40-180 GF — flanged connection for easy installation and secure system integration
- Voltage: 115V single-phase power supply
- Motor: 3/4 HP high-efficiency ECM (electronically commutated motor)
- Body material: Cast Iron (CI) construction for durability and long service life
- Advanced variable-speed control automatically adjusts pump speed to match system demand
- Integrated differential pressure and temperature sensors for intelligent system response
- Built-in control panel with intuitive interface for easy commissioning and monitoring
- Multiple control modes including proportional pressure, constant pressure, and constant curve
- Auto-adapt function continuously optimizes pump performance to system conditions
- Integrated motor protection against dry running, overload, and overtemperature
Performance & Efficiency
The Magna3 40-180 is built around Grundfos’ industry-leading ECM technology, which dramatically reduces energy consumption compared to traditional fixed-speed circulators. The pump’s intelligent controls continuously monitor system conditions and adjust output in real time — eliminating energy waste and reducing operating costs over the life of the system. The GF (Grundfos Flange) connection type ensures a robust, leak-free installation compatible with standard hydronic piping configurations.
Applications
- Hydronic space heating and cooling systems
- Radiant floor heating distribution
- Chilled water and hot water circulation
- Commercial and light industrial HVAC systems
- Boiler and heat exchanger circulation loops
Why Choose the Grundfos Magna3?
The Magna3 series is globally recognized as a benchmark in circulator pump technology. With its cast iron body, flanged connections, and intelligent ECM drive, the Magna3 40-180 GF delivers the reliability, efficiency, and ease of use that HVAC professionals demand. Whether retrofitting an existing system or specifying for new construction, the Grundfos 98126808 is a trusted solution for demanding hydronic applications.
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