Pump Motor Efficiency Requirements Part 2: Electronically Commutated Motors

Pump Motor Efficiency Requirements Part 2: Electronically Commutated Motors

Electronically commutated motors (ECMs) will play an important role in compliance with increasing motor efficiency requirements from the U.S. Department of Energy (DOE). But how do these motors differ from century-old direct current (DC) motor technology….

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How to Pick a Centrifugal Pump Part 8: Motor Speed Considerations

How to Pick a Centrifugal Pump Part 8: Motor Speed Considerations

How does RPM (revolutions per minute) impact pump operation? And what RPM is best suited for hydronic applications? A pump’s RPM or “synchronous speed” is determined by the number of magnetic poles in the motor winding as they interact with...

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