Dayton
Dayton 450Z17 Inline Centrifugal Duct Fan 6 in blower
Inline centrifugal duct fan moves up to 337 CFM through 6-inch ducting with a 120 V motor drawing 0.38 A at 85 watts
- Delivers 337 CFM free-air flow for strong ventilation
- Maintains 306 CFM at 0.100 in. SP to overcome duct resistance
- Steel housing protects motor in demanding environments
- Single-speed 2520 RPM motor simplifies wiring and control
- Draws only 0.38 A at 120 V for energy-efficient operation
Purpose and fit
The Dayton 450Z17 is an inline centrifugal duct fan built for 6-inch ducting in HVAC and ventilation installations. Its steel housing measures 9 inches in diameter and length, making it suitable for supply or exhaust runs where a compact blower is required.
Thermals, noise and power
The single-speed motor draws a maximum of 0.38 amps at 120 volts for 85 watts total input while turning at 2520 RPM. Airflow declines steadily as static pressure rises, from 337 CFM at zero pressure to 34 CFM at 0.800 inches of water column, so duct layout directly affects delivered air volume.
Deciding specification
The fan delivers 306 CFM at 0.100 inches of static pressure, a common design point for residential duct systems. Buyers who need higher flow at greater resistance or variable-speed control will find this fixed-speed model does not meet those requirements.
Highlights
- Delivers 337 CFM free-air flow for strong ventilation
- Maintains 306 CFM at 0.100 in. SP to overcome duct resistance
- Steel housing protects motor in demanding environments
- Single-speed 2520 RPM motor simplifies wiring and control
- Draws only 0.38 A at 120 V for energy-efficient operation
Specifications
| Brand | DAYTON |
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Questions about this item
How do I mount the 9 in steel housing to a 6 in duct so the blower does not vibrate loose?
Secure the 9 in steel housing with sheet-metal screws or clamps around the 6 in duct collar; the step people skip is sealing the joint with foil tape so static pressure does not drop from 337 CFM at .000 in. SP to 237 CFM at .250 in. SP.
Which part will need replacement first on a unit running continuously at 2520 RPM?
The single-speed motor bearings are the wear item; expect to replace the motor assembly when airflow falls below 204 CFM at .375 in. SP or when amp draw rises above the rated .38 A.
At what static pressure does the 85 W motor hit its practical airflow limit?
Airflow drops to 34 CFM at .800 in. SP, indicating the motor can no longer overcome duct resistance; size the duct run so operating pressure stays at or below .250 in. SP where output is still 237 CFM.
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