The Grundfos MAGNA range of pumps are innovative, intelligent circulation pumps that are designed around a permanent magnetic motor (developed by Grundfos) that ensures maximum efficiency. These pumps have been very popular with consultants, contractors and building owners since they were introduced in 2001 as they are easy to install and super energy efficient as they automatically adapt to meet the system demand.
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A majority of rail networks are state owned. They don't need to make a profit from their poor passengers.