Upblast Propeller Roof Exhaust Fans

Roof Top Fan Series


Model Features

  • Exhaust air up to 78,000 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
  • Direct drive units have low sound levels and quiet operation
  • cULus 705 Listed

cULus 705 Listed

Model Overview

UBB and UBX are high capacity roof mounted exhausters rated from 5,900 to 78,000 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, distribution centers, 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

UBB Specifications

Size CFM Range Max SP
24 4800 to 10000 1/2"
30 3254 to 13411 1/2"
36 11062 to 19349 1/2"
42 16000 to 29700 1/2"
48 17600 to 44800 1/2"
54 24200 to 51800 1/2"
60 27800 to 61000 1/2"
72 40500 to 70800 3/8"

UBX Specifications

Size CFM Range Max SP
24 5200 to 11200 1/2"
30 7900 to 18600 1/2"
36 1200 to 27400 1/2"
42 13300 to 32800 1/2"
48 18600 to 45800 1/2"
54 19400 to 55600 1/2"
60 35100 to 57200 1/2"
72 44000 to 65500 3/8"

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

Roof Curb   Download
Outlet Guard   Download
Disconnect Switch   Download
Magnetic Latches   Download
Heat/Smoke Vent   Download
Extended Grease Lines   Download
UBB and UBX Catalogue Pages   Download
UBB Product Submittal   Download
UBX Product Submittal   Download
UBB and UBX Product IOM   Download
  • General / Clean Air
  • Contaminated Air