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Airflow @ Static Pressure
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Mounting Hole Diameter
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High-Output Direct-Drive Duct Fans
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Produce three times the airflow as standard direct-drive duct fans. All of these direct-drive fans have fewer moving parts than belt-drive fans for less maintenance. Also known as axial duct fans, they install inline in ductwork for use as an exhaust, supply, or booster fan. All have a TEFC (totally enclosed fan cooled) 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.
Overall | Mounting | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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For Duct Dia. | No. of Speeds | Airflow @ SP | Volume (Sound) @ Distance | Motor Speed, rpm | Power, hp | Dia. | Ht. | Dp. | Bolt Circle Dia. | Max. Temp., ° F | Housing Material | Blade Material | Fasteners Included | For Screw Size | Hole Dia. | No. of Holes | Each | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
120V AC, 230V AC, Single Phase—Hardwire | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 18" | 1 | 3,900 ft³/min @ 3/8 in. H₂O 4,500 ft³/min @ 1/8 in. H₂O | 65 dBA @ 15 ft. | 1,750 | 3/4 | 20 1/16" | 20 1/16" | 20" | 19 1/8" | 100 | Steel | Aluminum | No | 3/8" | 7/16" | 8 | 0000000 | 000000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
230V AC, 460V AC, Three Phase—Hardwire | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 18" | 1 | 3,900 ft³/min @ 3/8 in. H₂O 4,500 ft³/min @ 1/8 in. H₂O | 60 dBA @ 15 ft. | 1,750 | 3/4 | 20 1/16" | 20 1/16" | 20" | 19 1/8" | 100 | Steel | Aluminum | No | 3/8" | 7/16" | 8 | 0000000 | 00000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Belt-Drive Duct Fans
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Belt-drive fans are quieter and have a longer life span than direct-drive fans because components can be replaced if worn or damaged. 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.
Overall | Mounting | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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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 | Fasteners Included | Hole Dia. | Each | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
120V AC, 230V AC, Single Phase—Hardwire | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 18" | 1 | 2,500 ft³/min @ 3/8 in. H₂O 3,400 ft³/min @ 1/8 in. H₂O | 60 dBA @ 15 ft. | 1,600 | 1/2 | 20 1/16" | 30 3/16" | 12" | 175 | Steel | Aluminum | No | 7/16" | 0000000 | 000000000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
230V AC, 460V AC, Three Phase—Hardwire | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 18" | 1 | 4,400 ft³/min @ 3/8 in. H₂O 4,800 ft³/min @ 1/8 in. H₂O | 65 dBA @ 15 ft. | 2,150 | 1 | 20 1/16" | 30 3/16" | 12" | 175 | Steel | Aluminum | No | 7/16" | 0000000 | 00000000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Belt-Drive Corrosion-Resistant Duct Fans
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A 304 stainless steel housing offers good corrosion resistance. All of these belt-drive fans are quieter and have a longer life span than direct-drive fans because components can be replaced if worn or damaged. They install inline in ductwork for use as an exhaust, supply, or booster fan. The 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.
Overall | Mounting | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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 | Fasteners Included | Hole Dia. | Each | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
230V AC, 460V AC, Three Phase—Hardwire | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 18" | 1 | 4,600 ft³/min @ 3/8 in. H₂O 4,800 ft³/min @ 1/8 in. H₂O | 65 dBA @ 15 ft. | 2,350 | 1 1/2 | 20 1/16" | 32 11/16" | 20" | 200 | 304 Stainless Steel | Stainless Steel | No | 7/16" | 0000000 | 000000000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Belt-Drive Hazardous Location Duct Fans
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These fans have an explosion-proof motor that is rated for hazardous environments. All are belt-drive fans that are quieter and have a longer life span than direct-drive fans because components can be replaced if worn or damaged. They install inline in ductwork for use as an exhaust, supply, or booster fan. UL and CSA standards apply to the motor.
Note: Airflow depends on the resistance created by ductwork. This resistance, known as static pressure (SP), is measured in inches of water.
IP44 Enclosure Rating—Fans rated IP44 have a motor enclosure that's rated for protection in damp environments.
Overall | Mounting | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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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 | Fasteners Included | Hole Dia. | Each | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
120V AC, 230V AC, Single Phase—Hardwire | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
IP44 Enclosure Rating | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 18" | 1 | 2,500 ft³/min @ 3/8 in. H₂O 3,400 ft³/min @ 1/8 in. H₂O | 60 dBA @ 15 ft. | 1,600 | 1/2 | 20 1/16" | 30 3/16" | 12" | 175 | Steel | Aluminum | UL Listed, UL Recognized Component, CSA Certified | No | 7/16" | 0000000 | 000000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
230V AC, 460V AC, Three Phase—Hardwire | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
IP44 Enclosure Rating | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 18" | 1 | 4,400 ft³/min @ 3/8 in. H₂O 4,800 ft³/min @ 1/8 in. H₂O | 65 dBA @ 15 ft. | 2,150 | 1 | 20 1/16" | 30 3/16" | 12" | 175 | Steel | Aluminum | UL Recognized Component, CSA Energy Verified, CSA Certified | No | 7/16" | 0000000 | 00000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Direct-Drive Hazardous Location Duct Fans
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These fans have an explosion-proof motor that is UL listed for Class I, Divisions 1 and 2, Group D; and Class II, Divisions 1 and 2, Groups F and G hazardous environments. All are direct-drive fans that have fewer moving parts than belt-drive fans for less maintenance. Also known as axial duct fans, they install inline in ductwork for use as an exhaust, supply, or booster fan. The fans have a TEFC (totally enclosed fan cooled) 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.
Overall | Mounting | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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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 | Fasteners Included | Hole Dia. | Each | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
120V AC, 230V AC, Single Phase—Hardwire | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
IP44 Enclosure Rating | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 18" | 1 | 3,900 ft³/min @ 3/8 in. H₂O 4,500 ft³/min @ 1/8 in. H₂O | 65 dBA @ 15 ft. | 1,750 | 3/4 | 20 1/16" | 20 1/16" | 20" | 100 | Steel | Aluminum | UL Listed, UL Recognized Component, CSA Certified | No | 7/16" | 0000000 | 000000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
230V AC, 460V AC, Three Phase—Hardwire | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
IP44 Enclosure Rating | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 18" | 1 | 3,900 ft³/min @ 3/8 in. H₂O 4,500 ft³/min @ 1/8 in. H₂O | 60 dBA @ 15 ft. | 1,750 | 3/4 | 20 1/16" | 20 1/16" | 20" | 100 | Steel | Aluminum | UL Listed, UL Recognized Component, CSA Certified | No | 7/16" | 0000000 | 00000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
