Belt Drive Upblast Propeller Roof Exhaust Fan

Roof Top Fan Series


Model Features

  • Exhaust air up to 51,000 CFM in static pressure applications up to 1/2" w.g.
  • Straight-through air flow design results in maximum exhaust efficiency
  • Belt drives permit easy performance adjustments when needed
  • cULus 705 Listed

cULus Listed

Model Overview

UBS and UBS-P are high capacity roof mounted exhausters rated from 7,000 to 51,000 CFM. They are general ventilation units designed to economically remove large volumes of air, fumes and vapors from commercial and industrial buildings such as warehouses, manufacturing and assembly plants, chemical plants, foundries and paper mills.

Straight-through air flow design results in maximum exhaust efficiency. During operation, high air flow velocity opens butterfly dampers and prevents rain or snow from entering. Dampers close and cover the venturi opening when unit is not in use.

The roof mounted location eliminates interference with processes and equipment inside the building. It also permits locating the exhauster over a source of heated or contaminated air, allowing direct upward venting to the outside, unlike wall mounted exhausters which may move contaminated air through adjacent work spaces.

Belt drive units usually operate more quietly and afford easier performance adjustments, while direct drive models require less maintenance.

2-year fan housing warranty, 1-year motor warranty

UBS Specifications

Size CFM Range Max SP
24 3732 to 7939 1/2"
30 3906 to 14388 1/2"
36 3522 to 19087 1/2"
42 5386 to 25259 1/2"
48 7559 to 31480 1/2"
54 11910 to 36456 1/2"
60 22834 to 50996 1/2"

UBS-P Specifications

Size CFM Range Max SP
24 5010 to 7420 1/2"
30 3010 to 14600 1/2"
36 2930 to 20600 1/2"
42 6270 to 30000 1/2"
48 10500 to 36500 1/2"
54 15400 to 41800 1/2"
60 25700 to 58500 1/2"

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

Clip Lock Curb Submittal
Cushion Close  
Disconnect Switch  
Magnetic Latches  
Outlet Guard  
Roof Curb  
Safety Basket Guard  
General Catalogue Section
Typical Specification Sheet
Instruction and Operation Manual
  • General / Clean Air
  • Contaminated Air