Grundfos 98126823 MAGNA1 32-100 GF 165 Circulator Pump 115/230V

Description

The Grundfos MAGNA1 32-100 GF 165 (SKU 98126823) is a high-efficiency, variable-speed wet-rotor circulator pump engineered for demanding hydronic heating and cooling applications. Built on Grundfos’ proven MAGNA1 platform, this pump combines intelligent control technology with a compact, reliable design to deliver optimized system performance and significant energy savings compared to fixed-speed alternatives.

Intelligent Performance

The MAGNA1 series features Grundfos’ AUTO ADAPT and FLOW ADAPT control modes, which automatically adjust pump speed and output to match actual system demand. This dynamic response eliminates unnecessary energy consumption during low-load periods and ensures consistent comfort throughout the hydronic system.

Key Features

• Variable-speed, electronically commutated motor (ECM) for superior energy efficiency
• Dual voltage operation: 115/230V for flexible installation
• Flange connection size: DN 32 (1-1/4 in.) with 165 mm installation length
• Maximum head: 10 meters (100 kPa) — ideal for medium-to-large hydronic systems
• Wet-rotor design — no external shaft seal, no lubrication required
• Integrated GF (glass-fiber reinforced) pump housing for durability and corrosion resistance
• Built-in differential pressure and temperature sensors for real-time system monitoring
• AUTO ADAPT mode automatically optimizes pump performance to system conditions
• LED status indicator for quick operational diagnostics
• Compact footprint suitable for retrofit and new installations

Typical Applications

• Hydronic heating and cooling distribution systems
• Radiant floor heating loops
• Fan coil unit circulation
• Chilled water systems
• Domestic hot water recirculation

Why Choose the Grundfos MAGNA1?

Grundfos MAGNA1 pumps are globally recognized for meeting ErP (Energy-related Products) efficiency standards. The intelligent variable-speed control reduces energy use by up to 70% versus traditional fixed-speed pumps, lowering operating costs over the life of the equipment. The maintenance-free wet-rotor construction and robust GF housing further reduce total cost of ownership, making the MAGNA1 32-100 GF 165 an outstanding value for HVAC professionals and building owners alike.