STXD, STXDe, and STXDeRHUL Upblast Direct Drive Centrifugal Roof/Sidewall Exhaust Fans
Centrifugal Roof & Wall Fan Series
Model Features
- Exhaust air up to 4,780 CFM in high static pressure applications up to 1-1/2" w.g.
- Attractive spun aluminum exterior
- Direct drive units have low sound levels and quiet operation
- Curved non-overloading backward inclined wheel for efficiency at higher static pressures
- Roof or sidewall mounting options
- AMCA Air and Sound Licensed
- cULus 705 or 762 Listed
- EcoWatt® (STXDe and STXDeRHUL Models)
Model Overview
The STXD direct drive fans are designed to exhaust air up to 4,780 CFM, with high static pressure capability up to 1-1/2". The non-overloading backward inclined wheel, with its higher static pressure capability, makes this unit suitable for either ducted or non-ducted applications. Its roof or wall mounting permits short duct runs and more efficient operation. Direct drive units use smaller diameter wheels with lower RPM's, resulting in low sound levels and quiet operation. They have no belts or fan bearings to maintain or adjust and consequently require very little maintenance.
Isolation of the motor from the air stream and the high-velocity air discharge make the STXD ideally suited for the removal of dirty, contaminated and/or high-temperature air from buildings and manufacturing plants. Typical applications include restaurant hoods and similar kitchen exhaust ventilation, fume and smoke removal, laboratory fume hood exhaust and chemical process exhaust.
Industry best 5-year fan housing warranty, 1-year motor warranty
STXD-RHUL units have 2-year fan housing warranty
| Size | CFM Range | Max SP |
| 6 | 56 to 308 | 3/4" |
| 7 | 78 to 437 | 3/4" |
| 8 | 174 to 935 | 7/8" |
| 10 | 322 to 1,445 | 1" |
| 12 | 470 to 1,918 | 1-1/4" |
| 14 | 868 to 3,426 | 1-1/2" |
| 15 | 800 to 3,997 | 1-3/4" |
| 16 | 1,272 to 4,781 | 1-3/4" |
Dimensional data is displayed in inches.
| Size | A | B | C | D | Roof Opening | Curb (O.D.) | Damper (O.D.) |
| 6 | 18 | 25-5/16 | 28-5/8 | 23-5/16 | 13-1/2 | 16-1/2 | 12 |
| 7 | 18 | 25-5/16 | 28-5/8 | 23-5/16 | 13-1/2 | 16-1/2 | 12 |
| 8 | 18 | 25-5/16 | 28-5/8 | 23-5/16 | 13-1/2 | 16-1/2 | 12 |
| 10 | 18 | 25-5/16 | 28-5/8 | 23-5/16 | 13-1/2 | 16-1/2 | 12 |
| 12 | 20 | 26-15/16 | 31-5/16 | 24-15/16 | 15-1/2 | 18-1/2 | 14 |
| 14 | 20 | 26-15/16 | 31-5/16 | 24-15/16 | 15-1/2 | 18-1/2 | 14 |
| 15 | 24 | 27-5/8 | 36-1/2 | 25-5/8 | 19-1/2 | 22-1/2 | 18 |
| 16 | 24 | 27-5/8 | 36-1/2 | 25-5/8 | 19-1/2 | 22-1/2 | 18 |
Note: Additional accessories are available for certain products. Contact your S&P Representative for more information about these accessories.
Standard Accessories
| Description | |
| Aluminum Grease Trough | Download |
| Grease Grabber | Download |
| Wheel Cleaning Port | Download |
| Automatic (Gravity) Damper | Download |
| Motor Operated Damper | Download |
| Roof Curb | Download |
| Curb Hinge Arrangement | Download |
| Insect Screen | Download |
| Solid State Speed Controls | Download |
EcoWatt® Accessories
| Description | |
| Constant Pressure System | Download |
| Potentiometer | Download |
| EC Motor Speed Control | Download |
| Description | |
| STXD Revit File |
- General/Clean Air
- Restaurant Hoods/Kitchen Ventilation
- Fume and Smoke Removal
- Laboratory Fume Hoods
- Chemical Process Exhaust