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.
High-Output Hazardous Location Spark-Resistant Blowers
Powerful and durable, these blowers are able to blow air through larger systems that have more airflow resistance than standard hazardous location spark-resistant blowers can handle. They have an explosion-proof motor that is UL listed for hazardous locations. They also have an aluminum housing for spark resistance. These blowers install in ductwork similar to duct fans, but are for use where high static pressures are present. Use them for equipment cooling, material conveying, drying, ventilating, and exhausting.
Note: Airflow depends on the resistance created by ductwork. This resistance, known as static pressure (SP), is measured in inches of water. It is the responsibility of users in California to follow local energy efficiency regulations. Operating these blowers at a high airflow may violate these regulations.
Overall | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Airflow @ Static Pressure | Volume | Motor Speed, rpm | Power, hp | Outlet Dia. | Inlet Dia. | Wheel Dia. | Ht. | Wd. | Dp. | Wt., lbs. | Temp. Range, °F | Mount. Fasteners Included | Mount. Hole Dia. | Each | |
With Round Outlet and Inlet | |||||||||||||||
120/230V AC, Single Phase—Hardwire | |||||||||||||||
| 130 cfm @ 3 in. of H₂O | 75 dBA @ 15 ft. | 3,450 | 1/3 | 4" | 4" | 7" | 13 5/8" | 14 3/4" | 12 1/8" | 56 | 0° to 100° | No | 7/16" | 0000000 | 000000000 |
| 250 cfm @ 3 in. of H₂O | 75 dBA @ 15 ft. | 3,450 | 1/2 | 4" | 4" | 8 1/8" | 13 5/8" | 14 3/4" | 12 1/8" | 49 | 0° to 100° | No | 7/16" | 0000000 | 00000000 |
230/460V AC, Three Phase—Hardwire | |||||||||||||||
| 250 cfm @ 3 in. of H₂O | 75 dBA @ 15 ft. | 3,450 | 1/2 | 4" | 4" | 8 1/8" | 13 5/8" | 14 3/4" | 12 1/8" | 47 | 0° to 100° | No | 7/16" | 0000000 | 00000000 |
High-Output Spark-Resistant Blowers
Powerful and durable, these blowers are able to blow air through larger systems that have more airflow resistance than standard spark-resistant blowers can handle. They have an aluminum housing for spark resistance. They install in ductwork similar to duct fans, but are for use where high static pressures are present. Use them for equipment cooling, material conveying, drying, ventilating, and exhausting. All blowers 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 | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Airflow @ Static Pressure | Volume | Motor Speed, rpm | Power, hp | Outlet Dia. | Inlet Dia. | Wheel Dia. | Ht. | Wd. | Dp. | Wt., lbs. | Temp. Range, °F | Mount. Fasteners Included | Mount. Hole Dia. | Each | |
With Round Outlet and Inlet—Totally Enclosed Motor Enclosure | |||||||||||||||
120/230V AC, Single Phase—Hardwire | |||||||||||||||
| 130 cfm @ 3 in. of H₂O | 75 dBA @ 15 ft. | 3,450 | 1/3 | 4" | 4" | 7" | 13 5/8" | 14 3/4" | 12 1/8" | 41 | 0° to 100° | No | 7/16" | 0000000 | 000000000 |
| 250 cfm @ 3 in. of H₂O | 75 dBA @ 15 ft. | 3,450 | 1/2 | 4" | 4" | 8 1/8" | 13 5/8" | 14 3/4" | 12 1/8" | 48 | 0° to 100° | No | 7/16" | 0000000 | 00000000 |
230/460V AC, Three Phase—Hardwire | |||||||||||||||
| 250 cfm @ 3 in. of H₂O | 75 dBA @ 15 ft. | 3,450 | 1/2 | 4" | 4" | 8 1/8" | 13 5/8" | 14 3/4" | 12 1/8" | 40 | 0° to 100° | No | 7/16" | 0000000 | 00000000 |