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- MAGNA3 - More than a pump With its unrivalled efficiency, all-encompassing range and built-in communication capabilities plus functionalities replacing system components, the MAGNA3 is ideal for engineers and specifiers looking to create high-performance systems for buildings. This pump in the Grundfos Master Class will fit both heating and cooling applications perfectly, making it the obvious choice for almost any building project - old or new. The MAGNA3 is of the canned-rotor type, i.e. pump and motor form an integral unit without shaft seal and with only two gaskets for sealing. The bearings are lubricated by the pumped liquid. The innovative clamp with only one screw enables easy repositioning of the pump head. The MAGNA3 is a pump with no maintenance requirements and with extremely low Life Cycle Cost. The MAGNA3 incorporates a 4-pole synchronous, permanent-magnet motor (PM motor). This motor type is characterized by higher efficiency than a conventional asynchronous squirrel-cage motor. The pump speed is controlled by an integrated frequency converter. A differential-pressure and temperature sensor is incorporated in the pump.
Grundfos Circulator Pump, 81 gpm, 26-1/4 ft Maximum Head, 16 to 262 W, 208 to 230 V, 0.19 to 1.2 A, 60 Hz, 174 psi Maximum, 32 to 104 deg F Ambient, X4D, 8-1/2 in H
- Auto adapt function
- Flow adapt and flow limit (more than a pump function as it reduces the need for pump throttling valves)
- Proportional-pressure control
- Constant-pressure control
- Constant-temperature control
- Maximum or minimum, constant-curve duty
- Automatic night setback
- No external motor protection required
- Insulating shells supplied with single-head pumps for heating systems
- Large temperature range where the liquid temperature and the ambient temperature are independent of each other
- Flow Rate81 gpmVoltage Rating208 / 230 VEnclosure TypeX4DFrequency Rating60 HzManufacturerGrundfosManufacturer #98126828Maximum Head26.25 ftMaximum Pressure174 psiMotor HP1/3 HP