TXB, TXB-HP, TXB-W, and TXB-RHULUpblast Belt Drive Centrifugal Roof Exhaust Fans

Spun Aluminum Centrifugal Fan Series


Model Features

  • Exhaust air up to 35,000 CFM in high static pressure applications up to 3-1/4" w.g.
  • Attractive spun aluminum exterior
  • Belt drives permit easy performance adjustments when needed
  • 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

TXB belt drive fans are designed to exhaust air up to 35,000 CFM, with high static pressure capability up to 3-1/4". The belt drive results in lower operating RPM and sound levels, making the TXB well suited to applications where quiet operation is important. Belt drives also permit 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 permits short duct runs and more efficient operation.

Isolation of motor and drive components from the airstream and the high velocity vertical air discharge make this fan 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.

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


Size CFM Range Max SP
36 3165 to 22093 2"
36 - High Pressure 5189 to 20834 2-3/4"
42 6123 to 29115 1-3/4"
48 8340 to 35139 1-3/4"
Dimensional Drawing TXB
Model Size A B C D E
36 42-1/2" 66" 44" 48" 2-1/2"
Dimensional Drawing TXBRHUL

Dimensional data is displayed in inches.

Model Size A B C D E
42 55" 72-1/2" 48" 52" 2-1/2"
48 55" 78-3/4" 52" 55" 2-1/2"

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

Standard Accessories

Automatic Belt Tensioner  
Curb Hinge Arrangement  
Motor Operated Damper  
Roof Curb  
Solid State Speed Control  
Sound Curb  

General Catalogue Section
Typical Specification Sheet
Submittal (TXB)
Submittal (TXBRHUL)

  • General / Clean Air
  • Spark Resistant