In satisfaction of the aforenoted needs, a brushless direct current magnetic pump is provided that comprises a drive shaft that passes through and that is coupled to a magnet carrier. Forged Steel Valves The magnetic carrier comprises an annular sleeve comprising an inner surface that engages the drive shaft and extends along a portion of the drive shaft. The sleeve further comprises an outer surface comprising at least six circumferentially spaced apart elongated ribs that extend axially along the outer surface of the sleeve. The sleeve further includes at least six elongated slots with each slot being disposed between two of the ribs. The pump also comprises at least six bar magnets with each bar magnet being accommodated in one of the slots so that the bar magnets are also circumferentially spaced around the outer surface of the annular sleeve. Forged Steel ValvesThe pump also comprises at least six sensor magnets with each sensor magnet being accommodated in one of the slots so that the six sensor magnets are also circumferentially spaced around the outer surface of the annular sleeve. Each sensor magnet is also axially spaced apart from one of the bar magnets. Accordingly, each groove of the annular sleeve accommodates a bar magnet and a sensor magnet with the space therebetween.REDUCING VALVES The sensor magnets are coupled to a Hall effect sensor for monitoring the speed and operation of the pump.

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2011-11-21

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