Excuse me, expert – what is the function of a pump preheater? ? ?
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What is the purpose of a preheater on a pump motor?
You mean the space heater, right? The function of a space heater is to prevent the motor’s internal windings from losing their insulation due to moisture when the motor isn’t in use for long periods of time; it also serves to prevent the motor from starting in a cold condition. The power of space heaters is generally not very high.