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STXB, STXB-RHUL, and STXB-HP Upblast Belt Drive Centrifugal Roof/Sidewall Exhaust Fans

Centrifugal Roof & Wall Fan Series

STXB, STXB-RHUL, and STXB-HP Models

Model Features

  • Exhaust air up to 16,958 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 16,958 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.

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

Size CFM Range Max SP
8 505 to 1,128 1"
10 571 to 1,510 1-1/4"
12 950 to 1,989 1-1/4"
14 1,472 to 3,435 1-1/2"
15 1,519 to 3,684 1-1/2"
16 1,511 to 3,975 1-1/2"
18 1,836 to 5,788 1-1/4"
20 1,804 to 6,552 1-1/4"
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"
Dimensional Drawing

Dimensional data is displayed in inches.

Size A B C D Roof Opening Curb (O.D.) Damper (O.D.)
8 18 29-5/16 28-5/8 27-5/16 13-1/2 16-1/2 12
10 18 29-5/16 28-5/8 27-5/16 13-1/2 16-1/2 12
12 20 30-7/8 31-5/16 28-7/8 15-1/2 18-1/2 14
14 20 30-7/8 31-5/16 28-7/8 15-1/2 18-1/2 14
15 24 31-1/2 36-1/2 29-1/2 19-1/2 22-1/2 18
16 24 31-1/2 36-1/2 29-1/2 19-1/2 22-1/2 18
18 30 35-3/4 42-5/8 33-3/4 25-1/2 28-1/2 24
20 30 38-5/8 46-7/16 36-5/8 25-1/2 28-1/2 24
22 30 38-5/8 46-7/16 36-5/8 25-1/2 28-1/2 24
24 36 49-1/8 50-1/2 47-1/8 31-1/2 34-1/2 30
27 36 51-5/8 61-5/16 49-5/8 31-1/2 34-1/2 30
30 42 52-5/16 65-7/16 50-5/16 37-1/2 40-1/2 36

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

Standard Accessories

Description  
Automatic Belt Tensioner   Download
Wheel Cleaning Port   Download
Insect Screen   Download
Aluminum Grease Trough   Download
Grease Grabber   Download
Automatic (Gravity) Damper   Download
Motor Operated Damper   Download
Roof Curb   Download
Curb Hinge Arrangement   Download

Description  
Centrifugal Spun Alumimum Products Brochure   Download
STXB, STXB-RHUL, and STXB-HP Catalog Pages   Download
STXB Product Submittal   Download
STXB-RHUL Product Submittal   Download
STXB-HP Product Submittal   Download
STXB, STXB-RHUL, and STXB-HP Product IOM   Download

Description  
STXB Revit File  

  • General/Clean Air
  • Restaurant Hoods/Kitchen Ventilation
  • Fume and Smoke Removal
  • Laboratory Fume Hoods
  • Chemical Process Exhaust