Dayton
Dayton 450Z18 Inline Centrifugal Duct Fan 10 in
Inline centrifugal duct fan moves up to 571 CFM through 8-inch ducts at 120 V with a 2450 RPM motor
- Moves 571 CFM at zero static pressure for maximum open-air flow
- Delivers 521 CFM at 0.100 in. SP to overcome typical duct resistance
- Maintains 347 CFM at 0.375 in. SP for longer or filtered runs
- Steel housing resists damage and vibration in demanding installations
- Single-speed 120 V motor draws 1.5 A for simple wiring
Dayton 450Z18 Inline Fan — Application
The Dayton 450Z18 is a single-speed inline centrifugal duct fan built for 120 V residential or light-commercial ventilation. Its steel housing measures 10 in long and 13 in in diameter, and it is designed to fit 8 in round ductwork. The motor runs at 2450 RPM and draws up to 1.5 A.
Check duct size and static pressure before ordering
Verify that your duct run uses 8 in diameter ducting and that the system static pressure falls within the published performance range. At 0.000 in. SP the fan moves 571 CFM; at 0.125 in. SP it delivers 515 CFM; at 0.250 in. SP output drops to 403 CFM, and at 0.500 in. SP it falls to 231 CFM. Ensure the circuit can supply 120 V at 1.5 A.
Upgrades from lower-CFM axial or centrifugal units
This model replaces smaller axial fans or earlier centrifugal blowers that cannot maintain airflow against duct resistance. The jump is worthwhile when the installed system operates above 0.125 in. SP and the existing fan falls below 500 CFM. It is not suited for installations requiring variable speed control or duct diameters larger than 8 in.
Highlights
- Moves 571 CFM at zero static pressure for maximum open-air flow
- Delivers 521 CFM at 0.100 in. SP to overcome typical duct resistance
- Maintains 347 CFM at 0.375 in. SP for longer or filtered runs
- Steel housing resists damage and vibration in demanding installations
- Single-speed 120 V motor draws 1.5 A for simple wiring
Specifications
| Brand | DAYTON |
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Questions about this item
Does the Dayton 450Z18 ship with mounting hardware or a speed controller, or must those be purchased separately?
The fan is supplied as the blower unit only. Mounting brackets, duct clamps, wiring and a separate speed controller are not included and must be sourced separately.
Which CFM rating should I use when sizing this 10-inch inline fan for my duct run?
Use the CFM figure that matches your system's measured static pressure in inches of water. For example, at 0.250 in. SP the fan delivers 403 CFM; at 0.500 in. SP it drops to 231 CFM.
What does the 571 CFM at 0.000 in. SP mean once the fan is installed in a real duct system?
That is the free-air maximum with no resistance. As soon as duct, filters or elbows add static pressure, actual airflow falls — at 0.125 in. SP you get 515 CFM, and at 0.500 in. SP only 231 CFM.
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