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The magnetic bond method was developed to
overcome the problems of cages and stuffing boxes. The
magnetic bond mechanism consists of a magnetic float which
rises and falls with changes in level. The float travels
outside of a non-magnetic tube which houses an inner magnet
connected to a level indicator. When the float rises and
falls, the outer magnet will attract the inner magnet,
causing the inner magnet to follow the level within the
vessel (Figure A1).
Figure A1
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