ENERGY SAVING PERMANENT MAGNETIC COUPLING 

In traditional Motor Pump Systems, whenever the less flow is required, we generally throttle valve, which in-turn increases the pressure in the overall pump system & it also increases the vibration in the system. No Energy can be saved through Conventional couplings.

Whereas, In Motor Pump Systems with PMCs, whenever the less flow is required, we just need to increase the gap between metal plate and magnet plate. It’ll reduce the RPM on the load side as well as reduce the flow. Due to increase in gap, the load on the motor side will decrease & will also result in current-drop of the motor system. That is how PMC saves Energy. 

Following graphs showing the difference between traditional pump systems and pump systems with PMC, in terms of energy savings: