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SISW Fan is a Single Inlet Single Width Fan Application

DIDW Fan is a Double Inlet Double Width Fan Application

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15y ago
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6mo ago

A SISW fan (Single Inlet Single Width) has a single inlet and a wheel with blades that are the same width as the fan inlet. A DIDW fan (Double Inlet Double Width) has two inlets and a wheel with blades that are double the width of the fan inlet. This design difference affects the airflow capacity and efficiency of the fan.

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Q: What is the difference between a sisw and a didw fan?
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