Upblast Belt Drive Centrifugal Roof/Sidewall Exhaust Fans

Spun Aluminum Centrifugal Fan Series


Model Features

  • Exhaust air up to 33,272 CFM in high static pressure applications up to 2-3/4" w.g.
  • Attractive spun aluminum exterior
  • Belt drives permit easy performance adjustments when needed
  • 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

AMCA Air and Sound Licensed   cULus Listed

Model Overview

STXB and STXB-RHUL Upblast Belt Drive Centrifugal Roof/Sidewall Exhaust Fans are designed to exhaust air up to 33,272 CFM in high static pressure applications to 2-3/4". The aluminum exterior provides an attractive appearance. Belt drive results in lower operating RPM and sound levels, making the Series STXB well suited to applications where quiet operation is important. Belt drive also permits easy performance adjustments when needed to balance the total ventilation system. 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 sidewall mounting options permit location near the area to be ventilated, allowing short duct runs and more efficient operation.

Isolation of motor and drive components from the air stream and, the high-velocity vertical air discharge make the Series STXB 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.

For grease removal applications the fan must be installed per NFPA 96 and with a 40" discharge height and hinged access base.

5-year fan housing warranty, 1-year motor warranty
STXB-RHUL units have 2-year fan housing warranty

Size CFM Range Max SP
8 201 to 1,128 1"
10 348 to 1,468 1"
12 318 to 1,989 1-1/4"
14 808 to 3,334 1-1/2"
15 439 to 3,684 2-1/2"
16 603 to 3,975 2-1/4"
18 1,297 to 5,589 2-3/4"
20 1,305 to 6,552 2-1/2"
22 3,355 to 8,624 1-1/4"
24 2,574 to 8,974 1-1/4"
27 2,785 to 10,308 1-1/4"
30 4,449 to 16,958 1-3/4"
33 4,431 to 17,856 1-3/4"
36 5,477 to 19,716 2-1/2"
42 8,263 to 29,052 1-1/2"
48 7,124 to 33,272 1-1/4"

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

Aluminum Grease Trough  
Automatic Belt Tensioner  
Automatic (Gravity) Damper  
Backdraft Damper Submittal
Curb Hinge Arrangement  
Grease Grabber  
Insect Screen  
Motor Operated Damper  
Roof Curb Submittal
Wall Mounting Kit Submittal
Wheel Cleaning Port  
Centrifugal Spun Aluminum Product Brochure
General Catalogue Section
Typical Specification Sheet
Instruction and Operation Manual
  • General / Clean Air
  • Restaurant Hoods / Kitchen Ventilation
  • Fume and Smoke Removal
  • Laboratory Fume Hoods
  • Chemical Process Exhaust