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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.
About Exhaust Fans
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Direct-Drive Exhaust Fans
With fewer moving parts than belt-drive fans, these direct-drive exhaust fans require less maintenance. They have a built-in grease pan to collect waste while cooking. Mount these fans directly to your roof with the attached mounting brackets. They meet UL standards for ventilation in residential, commercial, and institutional kitchens.
For technical drawings and 3-D models, click on a part number.
| Blade Dia. | Airflow @ Static Pressure | Volume | Motor Speed, rpm | No. of Speeds | Power, hp | Overall Ht. | Base Wd. | Max. Ambient Temp., °F | Housing Material | Blade Material | Features | Specifications Met | Each | |
Open Dripproof Motor Enclosure | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
208V AC, Three Phase—Hardwire | ||||||||||||||
| 31" | 7,000 cfm @ 1/2 in. of H₂O 8,500 cfm @ 0 in. of H₂O | 72 dB @ 5 ft. | 675 | Variable | 5 | 85 7/8" | 52 1/4" | 350° | Steel | Steel | Grease Pan | UL 705, UL 762, ULC-S645, ETL Listed | 0000000 | 000000000 |