About Exhaust Fans
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About Sound Levels
Measured in decibels (dB), volume ratings indicate how much noise equipment makes. Some common volume levels include a whisper @ 20 dB, a refrigerator @ 40 dB, a conversation @ 60 dB, and a light machine shop @ 90 dB. OSHA recommends hearing protection for exposure to 80 dB and greater.
Belt-Drive Wall-Mount Exhaust Fans with Louvers
These fans come complete with a movable-blade louver. The louvers are gravity operated so they open only when air flows through them, which prevents backdrafts. Belt-drive fans are quieter and have a longer life span than direct-drive fans because components can be replaced if worn or damaged. Use these fans to draw stagnant and humid air out of a room or area.
Fans with an open dripproof motor enclosure are for relatively clean, dry, indoor locations. Fans with a totally enclosed motor enclosure can be used in dirty, dusty, and damp environments.
For technical drawings and 3-D models, click on a part number.
For Opening | Overall | ||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Blade Dia. | Airflow, cfm | Volume | Motor Speed, rpm | No. of Speeds | Power, hp | Ht. | Wd. | Ht. | Wd. | Dp. | Wt., lbs. | Max. Ambient Temperature | Housing Material | Frame Material | Blade Material | Mount. Fasteners Included | Mount. Hole Dia. | Each | |
Open Dripproof Motor Enclosure | |||||||||||||||||||
120V AC, Single Phase—Hardwire | |||||||||||||||||||
| 30" | 6,000 | 55 dB @ 5 ft. | 550 | 1 | 1/2 | 37" | 37" | 36 1/2" | 36 1/2" | 19" | 152 | 104° F | Steel | Steel | Steel | No | 3/16" | 0000000 | 000000000 |
| 36" | 8,100 | 53 dB @ 5 ft. | 400 | 1 | 1/2 | 43" | 43" | 42 1/2" | 42 1/2" | 19" | 121 | 104° F | Steel | Steel | Steel | No | 3/16" | 0000000 | 00000000 |
| 42" | 11,000 | 57 dB @ 5 ft. | 400 | 1 | 3/4 | 49" | 49" | 48 1/2" | 48 1/2" | 19" | 270 | 104° F | Steel | Steel | Steel | No | 3/16" | 0000000 | 00000000 |
| 48" | 14,900 | 57 dB @ 5 ft. | 350 | 1 | 1 | 55" | 55" | 54 1/2" | 54 1/2" | 19" | 266 | 104° F | Steel | Steel | Steel | No | 3/16" | 0000000 | 00000000 |
Totally Enclosed Motor Enclosure | |||||||||||||||||||
230/460V AC, Three Phase—Hardwire | |||||||||||||||||||
| 30" | 6,000 | 55 dB @ 5 ft. | 550 | 1 | 1/2 | 37" | 37" | 36 1/2" | 36 1/2" | 25" | 153 | 104° F | Steel | Steel | Steel | No | 3/16" | 0000000 | 00000000 |
| 36" | 8,100 | 53 dB @ 5 ft. | 400 | 1 | 1/2 | 43" | 43" | 42 1/2" | 42 1/2" | 25" | 225 | 104° F | Steel | Steel | Steel | No | 3/16" | 0000000 | 00000000 |
| 42" | 11,000 | 57 dB @ 5 ft. | 400 | 1 | 3/4 | 49" | 49" | 48 1/2" | 48 1/2" | 25" | 250 | 104° F | Steel | Steel | Steel | No | 3/16" | 0000000 | 00000000 |
| 48" | 14,900 | 57 dB @ 5 ft. | 350 | 1 | 1 | 55" | 55" | 54 1/2" | 54 1/2" | 25" | 324 | 104° F | Steel | Steel | Steel | No | 3/16" | 0000000 | 00000000 |
Belt-Drive Wall-Mount Exhaust Fans
Use these fans to draw stagnant and humid air out of a room or area. Belt-drive fans are quieter and have a longer life span than direct-drive fans because components can be replaced if worn or damaged. All have an open dripproof motor enclosure for relatively clean, dry, indoor locations.
Collars and louvers are sold separately. Use a collar to connect a wall-mount exhaust fan to a louver.
For technical drawings and 3-D models, click on a part number.
Fans | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Overall | Collars | |||||||||||||
| Blade Dia. | Airflow, cfm | Volume | Motor Speed, rpm | No. of Speeds | Power, hp | Ht. | Wd. | Dp. | Frame Material | Blade Material | Each | Each | ||
120V AC, Single Phase—Hardwire | ||||||||||||||
| 30" | 8,200 | 56 dB @ 5 ft. | 600 | 1 | 1/2 | 36" | 36" | 18 3/8" | Steel | Steel | 0000000 | 0000000 | 0000000 | 0000000 |
| 36" | 10,600 | 56 dB @ 5 ft. | 425 | 1 | 1/2 | 42" | 42" | 18 5/8" | Steel | Steel | 0000000 | 00000000 | 0000000 | 000000 |
| 48" | 18,500 | 61 dB @ 5 ft. | 400 | 1 | 1 | 54" | 54" | 24 3/4" | Steel | Steel | 0000000 | 00000000 | 0000000 | 000000 |
230/460V AC, Three Phase—Hardwire | ||||||||||||||
| 30" | 8,200 | 56 dB @ 5 ft. | 600 | 1 | 1/2 | 36" | 36" | 18 3/8" | Steel | Steel | 0000000 | 000000 | 0000000 | 000000 |
| 36" | 10,600 | 56 dB @ 5 ft. | 425 | 1 | 1/2 | 42" | 42" | 18 5/8" | Steel | Steel | 0000000 | 000000 | 0000000 | 000000 |
| 48" | 18,500 | 56 dB @ 5 ft. | 400 | 1 | 1 | 54" | 54" | 24 3/4" | Steel | Steel | 0000000 | 00000000 | 0000000 | 000000 |
Dust-Resistant Belt-Drive Wall-Mount Exhaust Fans
Better suited for dirty, dusty, and damp environments than standard direct-drive fans, these have a totally enclosed motor enclosure. Belt-drive fans are quieter and have a longer life span than direct-drive fans because components can be replaced if worn or damaged. Use these fans to draw stagnant and humid air out of a room or area.
Collars and louvers are sold separately. Use a collar to connect a wall-mount exhaust fan to a louver.
For technical drawings and 3-D models, click on a part number.
Fans | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Overall | Collars | |||||||||||||
| Blade Dia. | Airflow, cfm | Volume | Motor Speed, rpm | No. of Speeds | Power, hp | Ht. | Wd. | Dp. | Frame Material | Blade Material | Each | Each | ||
230/460V AC, Three Phase—Hardwire | ||||||||||||||
| 36" | 14,200 | 68 dB @ 5 ft. | 800 | 1 | 1 1/2 | 42" | 42" | 19 1/8" | Steel | Steel | 0000000 | 000000000 | 0000000 | 0000000 |
| 48" | 26,800 | 72 dB @ 5 ft. | 600 | 1 | 3 | 54" | 54" | 24 7/8" | Steel | Steel | 0000000 | 00000000 | 0000000 | 000000 |
| 54" | 37,600 | 70 dB @ 5 ft. | 525 | 1 | 5 | 60" | 60" | 23 1/2" | Steel | Steel | 0000000 | 00000000 | 0000000 | 000000 |
| 60" | 50,000 | 79 dB @ 5 ft. | 500 | 1 | 7 1/2 | 66" | 66" | 23 1/2" | Steel | Steel | 0000000 | 00000000 | 0000000 | 000000 |
Exterior-Wall-Mount Exhaust Fans
Good when you don't have room to mount an exhaust fan inside your facility, these fans attach to openings in outside walls. Use them to draw stagnant and humid air out of a room or area. Belt-drive fans are quieter than direct-drive fans. They also last longer because their components can be replaced if damaged. Fans with a totally enclosed motor enclosure can be used in dirty, dusty, and damp environments. They mount through the wall, so you'll need to cut a hole on the inside of the wall as well.
Note: Airflow depends on the resistance created by louvers, filters, and ductwork in your system. This resistance, known as static pressure (SP), is measured in inches of water.
For technical drawings and 3-D models, click on a part number.
For Opening | Overall | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Blade Dia. | Airflow @ Static Pressure | Drive Type | Motor Speed, rpm | Power, hp | Dia. | Ht. | Wd. | Dia. | Dp. | Motor Enclosure Type | Includes | Each | |
120/230V AC, Single Phase—Hardwire | |||||||||||||
| 50" | 16,200 cfm @ 0.2 in. of H₂O 12,100 cfm @ 0 in. of H₂O | Belt | 1,725 | 1 | 50" | 56" | 56" | 63" | 47 1/4" | Totally Enclosed | Louvers | 0000000 | 000000000 |
230/460V AC, Three Phase—Hardwire | |||||||||||||
| 50" | 12,100 cfm @ 0.2 in. of H₂O 21,600 cfm @ 0 in. of H₂O | Belt | 800 | 1/2 | 50" | 56" | 56" | 63" | 47 1/4" | Totally Enclosed | Louvers | 0000000 | 00000000 |
Belt-Drive Downdraft Roof-Mount Exhaust Fans
Belt-drive fans are quieter and have a longer life span than direct-drive fans because components can be replaced if worn or damaged. More economical than upblast roof-mount exhaust fans, these draw stagnant and humid air out through your roof and then direct it back toward the roof.
Note: Airflow depends on the resistance created by ductwork. This resistance, known as static pressure (SP), is measured in inches of water.
Fans | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Overall | Mounting Bases | |||||||||||
| Blade Dia. | Airflow @ Static Pressure | Volume | Motor Speed, rpm | Power, hp | Dia. | Ht. | Base Wd. | Housing Material | Each | Each | ||
Open Dripproof Motor Enclosure | ||||||||||||
120/208-230V AC, Single Phase—Hardwire | ||||||||||||
| 16" | 2,800 cfm @ 1/2 in. of H₂O 3,200 cfm @ 0 in. of H₂O | 70 dBA @ 5 ft. | 1,145 | 3/4 | 33 11/16" | 29 1/4" | 26" | Aluminum | 0000000 | 000000000 | 0000000 | 0000000 |
| 20" | 4,900 cfm @ 1/2 in. of H₂O 5,400 cfm @ 0 in. of H₂O | 74 dBA @ 5 ft. | 1,080 | 1 1/2 | 38 1/4" | 31 3/4" | 30" | Aluminum | 0000000 | 00000000 | 0000000 | 000000 |
208-230/460V AC, Three Phase—Hardwire | ||||||||||||
| 24" | 6,900 cfm @ 1/2 in. of H₂O 7,750 cfm @ 0 in. of H₂O | 73 dBA @ 5 ft. | 875 | 2 | 44 1/4" | 39 11/16" | 33" | Aluminum | 0000000 | 00000000 | 0000000 | 000000 |
Hazardous Location Upblast Roof-Mount Exhaust Fans
With a UL-listed motor, these fans can be used in hazardous environments with combustible gases and dust to draw stagnant and humid air out through your roof, forcing it up and away from its surface.
Belt-drive fans are quieter and last longer than direct-drive fans because their components can be replaced if they’re worn or damaged.
For technical drawings and 3-D models, click on a part number.
Fans | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Overall | Mounting Bases | ||||||||||||||
| Blade Dia. | Airflow @ Static Pressure | Volume | Motor Speed, rpm | Power, hp | Dia. | Ht. | Base Wd. | Wt., lbs. | Max. Ambient Temp., °F | Housing Material | Environmental Rating | Each | Each | ||
Totally Enclosed Motor Enclosure | |||||||||||||||
120/240V AC, Single Phase—Hardwire | |||||||||||||||
| 24" | 3,530 cfm @ 1/2 in. of H₂O 6,150 cfm @ 0 in. of H₂O | 71 dBA @ 5 ft. | 1,750 | 3/4 | 33" | 25" | 36" | 340 | 100° | Steel | NEC Class I Divisions 1, 2 Groups C, D; NEC Class II Divisions 1, 2 Groups E, F, G | 0000000 | 000000000 | 0000000 | 0000000 |
| 30" | 2,950 cfm @ 1/2 in. of H₂O 9,800 cfm @ 0 in. of H₂O | 68 dBA @ 5 ft. | 1,750 | 3/4 | 39" | 28" | 42" | 410 | 100° | Steel | NEC Class I Divisions 1, 2 Groups C, D; NEC Class II Divisions 1, 2 Groups E, F, G | 0000000 | 00000000 | 0000000 | 000000 |
240/460V AC, Three Phase—Hardwire | |||||||||||||||
| 36" | 20,200 cfm @ 1/2 in. of H₂O 24,100 cfm @ 0 in. of H₂O | 82 dBA @ 5 ft. | 1,750 | 5 | 45" | 31" | 48" | 590 | 100° | Steel | NEC Class I Divisions 1, 2 Groups C, D; NEC Class II Divisions 1, 2 Groups E, F, G | 0000000 | 00000000 | 0000000 | 000000 |
| 42" | 22,400 cfm @ 1/2 in. of H₂O 27,800 cfm @ 0 in. of H₂O | 78 dBA @ 5 ft. | 1,750 | 5 | 51" | 34" | 54" | 720 | 100° | Steel | NEC Class I Divisions 1, 2 Groups C, D; NEC Class II Divisions 1, 2 Groups E, F, G | 0000000 | 00000000 | 0000000 | 000000 |
| 48" | 28,600 cfm @ 1/2 in. of H₂O 36,700 cfm @ 0 in. of H₂O | 80 dBA @ 5 ft. | 1,750 | 5 | 57" | 37" | 60" | 840 | 100° | Steel | NEC Class I Divisions 1, 2 Groups C, D; NEC Class II Divisions 1, 2 Groups E, F, G | 0000000 | 00000000 | 0000000 | 000000 |
Hazardous Location Exhaust Fans
These fans have a motor that is UL listed for hazardous environments. Use them to draw stagnant and humid air out of a room or area.
Belt-drive fans are quieter and last longer than direct-drive fans because their components can be replaced if they’re worn or damaged. They come with collars, so you can connect these fans to a louver.
For technical drawings and 3-D models, click on a part number.
Overall | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Blade Dia. | Airflow, cfm | Volume | Drive Type | Motor Speed, rpm | No. of Speeds | Power, hp | Ht. | Wd. | Dp. | Housing Material | Blade Material | Environmental Rating | Includes | Each | |
120/230V AC, Single Phase—Hardwire | |||||||||||||||
| 30" | 9,840 | 71 dBA @ 10 ft. | Belt | 1,725 | 1 | 3/4 | 34 3/4" | 34 3/4" | 30" | Steel | Aluminum | NEC Class I Divisions 1, 2 Group D; NEC Class II Divisions 1, 2 Groups F, G | Collar | 0000000 | 000000000 |
| 36" | 11,000 | 72 dBA @ 10 ft. | Belt | 1,725 | 1 | 3/4 | 40 3/4" | 40 3/4" | 30" | Steel | Aluminum | NEC Class I Divisions 1, 2 Group D; NEC Class II Divisions 1, 2 Groups F, G | Collar | 0000000 | 00000000 |
| 42" | 14,600 | 74 dBA @ 10 ft. | Belt | 1,725 | 1 | 3/4 | 46 3/4" | 46 3/4" | 30" | Steel | Aluminum | NEC Class I Divisions 1, 2 Group D; NEC Class II Divisions 1, 2 Groups F, G | Collar | 0000000 | 00000000 |
| 48" | 19,100 | 70 dBA @ 10 ft. | Belt | 1,725 | 1 | 3/4 | 52 3/4" | 52 3/4" | 30" | Steel | Aluminum | NEC Class I Divisions 1, 2 Group D; NEC Class II Divisions 1, 2 Groups F, G | Collar | 0000000 | 00000000 |
Belt-Drive Duct Fans
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 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| For Duct Dia. | Airflow @ Static Pressure | Volume | Motor Speed, rpm | Power, hp | Dia. | Ht. | Dp. | Max. Temp., °F | Housing Material | Blade Material | Mounting Fasteners Included | Mounting Hole Dia. | Each | |
120/230V AC, Single Phase—Hardwire | ||||||||||||||
| 12" | 1,400 cfm @ 3/8 in. of H₂O 1,600 cfm @ 1/8 in. of H₂O | 65 dBA @ 15 ft. | 3,450 | 1/2 | 14 1/16" | 23 7/16" | 12" | 175° | Steel | Aluminum | No | 7/16" | 0000000 | 000000000 |
| 15" | 2,800 cfm @ 3/8 in. of H₂O 3,200 cfm @ 1/8 in. of H₂O | 65 dBA @ 15 ft. | 2,275 | 3/4 | 17 1/16" | 26 15/16" | 12" | 175° | Steel | Aluminum | No | 7/16" | 0000000 | 00000000 |
| 18" | 2,500 cfm @ 3/8 in. of H₂O 3,400 cfm @ 1/8 in. of H₂O | 60 dBA @ 15 ft. | 1,600 | 1/2 | 20 1/16" | 30 3/16" | 12" | 175° | Steel | Aluminum | No | 7/16" | 0000000 | 00000000 |
230/460V AC, Three Phase—Hardwire | ||||||||||||||
| 18" | 4,400 cfm @ 3/8 in. of H₂O 4,800 cfm @ 1/8 in. of H₂O | 65 dBA @ 15 ft. | 2,150 | 1 | 20 1/16" | 30 3/16" | 12" | 175° | Steel | Aluminum | No | 7/16" | 0000000 | 00000000 |
| 24" | 7,000 cfm @ 3/8 in. of H₂O 7,900 cfm @ 1/8 in. of H₂O | 70 dBA @ 15 ft. | 1,800 | 1 1/2 | 26 11/16" | 36 11/16" | 12" | 175° | Steel | Aluminum | No | 7/16" | 0000000 | 00000000 |
| 36" | 13,300 cfm @ 3/8 in. of H₂O 15,200 cfm @ 1/8 in. of H₂O | 65 dBA @ 15 ft. | 1,000 | 2 | 39 1/4" | 49 1/4" | 16" | 175° | Steel | Aluminum | No | 7/16" | 0000000 | 00000000 |
Belt-Drive Corrosion-Resistant Duct Fans
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 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| For Duct Dia. | Airflow @ Static Pressure | Volume | Motor Speed, rpm | Power, hp | Dia. | Ht. | Dp. | Max. Temp., °F | Housing Material | Blade Material | Mounting Fasteners Included | Mounting Hole Dia. | Each | |
230/460V AC, Three Phase—Hardwire | ||||||||||||||
| 12" | 1,600 cfm @ 3/8 in. of H₂O 1,800 cfm @ 1/8 in. of H₂O | 60 dBA @ 15 ft. | 3,050 | 3/4 | 14 1/16" | 25 5/8" | 20" | 200° | 304 Stainless Steel | Stainless Steel | No | 7/16" | 0000000 | 000000000 |
| 18" | 4,600 cfm @ 3/8 in. of H₂O 4,800 cfm @ 1/8 in. of 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 | 00000000 |
| 24" | 7,200 cfm @ 3/8 in. of H₂O 7,900 cfm @ 1/8 in. of H₂O | 65 dBA @ 15 ft. | 1,700 | 2 | 26 11/16" | 38 3/4" | 21" | 200° | 304 Stainless Steel | Stainless Steel | No | 7/16" | 0000000 | 00000000 |
Belt-Drive Hazardous Location Duct Fans
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. Fans rated IP44 have a motor enclosure that's rated for protection in damp environments. Fans rated IP56 have a motor enclosure that’s rated for protection in damp, dusty, and washdown environments. 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.
Overall | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| For Duct Dia. | Airflow @ Static Pressure | Volume | Motor Speed, rpm | Power, hp | Dia. | Ht. | Dp. | Max. Temp., °F | Housing Material | Blade Material | Mount. Fasteners Included | Mount. Hole Dia. | Each | |
120/230V AC, Single Phase—Hardwire | ||||||||||||||
| 12" | 1,400 cfm @ 3/8 in. of H₂O 1,600 cfm @ 1/8 in. of H₂O | 65 dBA @ 15 ft. | 3,025 | 1/2 | 14 1/16" | 23 7/16" | 12" | 175° | Steel | Aluminum | No | 7/16" | 0000000 | 000000000 |
| 15" | 2,800 cfm @ 3/8 in. of H₂O 3,200 cfm @ 1/8 in. of H₂O | 65 dBA @ 15 ft. | 2,275 | 3/4 | 17 1/16" | 26 15/16" | 12" | 175° | Steel | Aluminum | No | 7/16" | 0000000 | 00000000 |
| 18" | 2,500 cfm @ 3/8 in. of H₂O 3,400 cfm @ 1/8 in. of H₂O | 60 dBA @ 15 ft. | 1,600 | 1/2 | 20 1/16" | 30 3/16" | 12" | 175° | Steel | Aluminum | No | 7/16" | 0000000 | 00000000 |
230/460V AC, Three Phase—Hardwire | ||||||||||||||
| 18" | 4,400 cfm @ 3/8 in. of H₂O 4,800 cfm @ 1/8 in. of H₂O | 65 dBA @ 15 ft. | 2,150 | 1 | 20 1/16" | 30 3/16" | 12" | 175° | Steel | Aluminum | No | 7/16" | 0000000 | 00000000 |
| 24" | 7,000 cfm @ 3/8 in. of H₂O 7,900 cfm @ 1/8 in. of H₂O | 70 dBA @ 15 ft. | 1,800 | 1 1/2 | 26 11/16" | 36 11/16" | 12" | 175° | Steel | Aluminum | No | 7/16" | 0000000 | 00000000 |
| 36" | 13,300 cfm @ 3/8 in. of H₂O 15,200 cfm @ 1/8 in. of H₂O | 65 dBA @ 15 ft. | 1,000 | 2 | 39 1/4" | 49 1/4" | 16" | 175° | Steel | Aluminum | No | 7/16" | 0000000 | 00000000 |