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The
pump and driving motor are assembled as a single unit on a common
shaft. The trans-former oil circulates through the windings thus
eliminating cooling fan, shaft seal and avoid-ing the danger of
oil leakage or entry of air.
The
complete unit is weather proof and can be arranged for horizontal
or vertical mounting. Lubrication of the bearings and cooling
of the motor windings is achieved with the circulat-ed transformer
oil. This results in a very efficient rate of cooling of the motor
windings with minimum re-circulation losses and maximum utilization
of available motor power.
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