Galvanized Butterfly Fans

A balance of performance, features and value come with Cumberland’s Butterfly Fan. These fans are equipped with a simple butterfly style shutter structure to improve fan performance and stability. This innovative design eliminates small shutter blades which are prone to dust build-up. The practical butterfly style front closure shutter doors also offer protection against harsh weather conditions such as wind and moisture while the fan is not in use. During operation, the air forces the shutter doors open. The Butterfly fan uses its magnetic shutter panel ring to alleviate movement of the shutters while not in use. The surface edge of the Butterfly shutter is drastically smaller than conventional louvered shutters, thus improving fan performance.

ULTRA High Efficiency Model 27,500 CFM at .05 Static Pressure
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