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Direct-Drive Duct Fans
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Direct-drive fans have fewer moving parts than belt-drive fans for less maintenance. Also known as axial duct fans, these install inline in ductwork for use as an exhaust, supply, or booster fan. All fans have a totally enclosed motor enclosure, which can be used in dirty, dusty, and damp environments.
Note: Airflow depends on the resistance created by ductwork. This resistance, known as static pressure (SP), is measured in inches of water.
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For Duct Dia. | No. of Speeds | Airflow @ SP | Volume (Sound) @ Distance | Motor Speed, rpm | Power, hp | Dia. | Ht. | Dp. | Max. Temp., ° F | Housing Material | Blade Material | Certification | Hardware Included | Hole Dia. | Each | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
120V AC, Single Phase—Hardwire | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 4" | 1 | 95 ft³/min @ 3/8 in. H₂O 135 ft³/min @ 1/8 in. H₂O | Not Rated | 3,050 | 1/40 | 9 1/2" | 9 1/2" | 9 5/8" | 140 | ABS/Polycarbonate | Nylon | C-UL Listed, UL Listed | Yes | 1/4" | 00000000 | 0000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 5" | 1 | 105 ft³/min @ 3/8 in. H₂O 150 ft³/min @ 1/8 in. H₂O | Not Rated | 3,050 | 1/40 | 9 1/2" | 9 1/2" | 7 7/8" | 140 | ABS/Polycarbonate | Nylon | C-UL Listed, UL Listed | Yes | 1/4" | 00000000 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
