STXD, STXDe, and STXDeRHUL Upblast Direct Drive Centrifugal Roof/Sidewall Exhaust Fans

Centrifugal Roof & Wall Fan Series

Centrifugal Roof & Wall Fans
SDBD and SDBDe SDB STXD, STXDe, and STXDeRHUL STXB, STXB-RHUL, and STXB-HP STXB-HT2 and STXB-HT LPD and LPD-SF CWD
STXD Model
STXD Model

High Wind Tie-Down Kit Option Available

Model Features

  • Exhaust air up to 4,780 CFM in high static pressure applications up to 2-1/4" 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 and 762 Listed
  • Ecowatt® (STXDe and STXDeRHUL Models)
  • Miami-Dade NOA and Florida Product Approval Option Available Download letter here.
  • Listed with the Texas Department of Insurance under Product Evaluation RV-126 for wind load and windborne debris resistance per IRC/IBC 2018
  • This product meets the requirements of Buy American (2009) and Build America, Buy America (BABA), as part of IIJA (2022). Download letter here.

AMCA Air and SoundcULus EcowattMiami-Dade Approved   BABA-ACT

Model Overview

Model STXD direct drive fans are designed to exhaust air up to 4,780 CFM in high static pressure applications to 2-1/4". The aluminum exterior provides an attractive appearance. The non-overloading backward inclined wheel with its higher static pressure capability makes this unit suitable for either ducted or nonducted applications. Its roof or wall mounting permits location near the area to be ventilated, allowing 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 vertical (roof) or horizontal (wall) air discharge make the Model STXD ideally suited for the removal of dirty, contaminated and/or high temperature air from processes and buildings. Typical applications include restaurant hoods and similar kitchen exhaust ventilation, fume and smoke removal, laboratory fume hood exhaust and chemical process exhaust.

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"
8 182 to 935 7/8"
10 322 to 1,445 1"
12 470 to 1,918 1-1/4"
14 868 to 3,268 1-1/2"
15 800 to 3,997 2"
16 880to 4,781 2-1/4"
*18 1,098 to 4,272 1-1/4"

*Size 18 is not available in STXD. Size 18 is only available in STXDe and STXDeRHUL.

Dimensional drawing for the STXD modal and all variants.

Dimensional data is displayed in inches.

Size A B C D Roof Opening Curb O.D. Damper O.D. Avg. Ship Weight(lbs)
6 18 25-5/16 28-5/8 23-5/16 13-1/2 16-1/2 12 89
7 18 25-5/16 28-5/8 23-5/16 13-1/2 16-1/2 12 89
8 18 25-5/16 28-5/8 23-5/16 13-1/2 16-1/2 12 98
10 18 25-5/16 28-5/8 23-5/16 13-1/2 16-1/2 12 101
12 20 26-15/16 31-5/16 24-15/16 15-1/2 18-1/2 14 111
14 20 26-15/16 31-5/16 24-15/16 15-1/2 18-1/2 14 118
15 24 27-5/8 36-1/2 25-5/8 19-1/2 22-1/2 18 140
16 24 27-5/8 36-1/2 25-5/8 19-1/2 22-1/2 18 141
18 30 35-3/4 42-5/8 30-1/2 25-3/16 28-1/2 24 230

STXD, STXDe, STXDRHUL and STXDeRHUL Kits

Select S-Series (Centrifugal Roof Fans) models are now hurricane and high wind certified for wind-borne debris impact resistance and wind load design pressures up to ±150 PSF.

KIT-PV100X

High Wind Tie-Down Kit

  • Tie-downs
  • Fastened motor cover
Flyer

Additional accessories are available for certain products. Contact your S&P Representative for more information about these accessories.

Standard Accessories

Aluminum Grease Trough    
Automatic Damper    
Backdraft Damper Submittal  
Curb Cap Adaptor Submittal  
Curb Hinge Arrangement    
Grease Grabber    
Insect Screen    
Motor Operated Damper    
Roof Curb Submittal  
Self-Flashing Curb Submittal  
Solid State Speed Controls    
Ventilation Gas Detectors Submittal IOM
Wall Mounting Kit Submittal  
Wheel Cleaning Port    

Ecowatt® Accessories

Constant Pressure System    
Potentiometer Submittal  
EC Motor Speed Control    
EC Differential Pressure Control   IOM
ECM Multi-Speed Control   IOM

Miami Dade Certification
Product Line Overview
General Catalog Section
Ecowatt® Brochure
Submittal
IOM (STXD)
IOM (STXDe and STXDeRHUL)