BBelt Drive Utility Vent Set with Backward Inclined Wheel
Utility Vent Sets
Model Features
- Exhaust air to over 32,000 CFM with static pressure capabilities up to 8-1/2" w.g.
- Belt drive permits easy performance adjustments when needed
- Airtight all welded construction
- Rotatable to 8 discharge orientations
- AMCA Air and Sound Licensed
- cULus 705 and 762 Listed
Model Overview
The Backward Inclined Utility Vent Set with ULTRAFAN-PAK fan wheels are versatile, quiet, and energy efficient. These utility sets are the best selection for many industrial, commercial and institutional projects. Typical applications include hood exhaust, welding fume exhaust and flammable gas exhaust. Ventilation of theaters, restaurants, stores, hotels, kitchens, gymnasiums, laundry rooms, lavatories and locker rooms are other common applications for utility sets.
ULTRAFAN-PAK fans by S&P are available in 13 sizes with wheel diameters from 7-3/4" through 36-1/2". Wheel diameters are readily recognized by the model number. For example, Model B-105 has a 10-1/2" diameter wheel and Model B 330 has a 33" diameter wheel. ULTRAFAN-PAK Class I fans deliver up to 26,000 cubic feet of air per minute (CFM) at static pressures (SP) up to 5" W.G. Class II fans deliver up to 32,000 CFM at SP up to 8-1/2" w.g.
For small or medium size general ventilation applications ULTRAFAN-PAK utility sets are the ideal choice. These easy to select, easy to install fans come prepackaged from the factory. Each self-contained unit includes the motor and adjustable drive as well as the fan assembly.
1-year fan housing and motor warranty
B Specifications
| Size | Max HP | CFM Range | Max SP |
| 105 | 0.0387 HP | 509 to 2671 | 8-1/2" |
| 122 | 0.1009 HP | 686 to 4118 | 8-1/2" |
| 135 | 0.1567 HP | 839 to 5035 | 8-1/2" |
| 150 | 0.2575 HP | 1024 to 5888 | 8-1/2" |
| 165 | 0.4142 HP | 1248 to 7176 | 8-1/2" |
| 182 | 0.6444 HP | 1519 to 8735 | 8-1/2" |
| 200 | 1.0139 HP | 1854 to 10199 | 8-1/2" |
| 222 | 1.8739 HP | 2262 to 13004 | 8" |
| 245 | 3.0246 HP | 3458 to 15907 | 8" |
| 270 | 3.15 HP | 3352 to 16760 | 8-1/2" |
| 300 | 5.33 HP | 4136 to 21714 | 8-1/2" |
| 330 | 8.59 HP | 5008 to 25040 | 8-1/2" |
| 365 | 13.01 HP | 6128 to 32172 | 8-1/2" |
Model B - Class I (SWSI)
| Model Size | A | B | C | D | E | F |
| 105 | 12-7/8" | 13" | 11-3/4" | 8" | 14-1/4" | 10-3/4" |
| 122 | 16-3/8" | 13-1/2" | 13-1/4" | 9-5/8" | 13-1/2" | 14-3/4" |
| 135 | 17-5/8" | 13-1/2" | 14-5/8" | 10-3/4" | 13-1/2" | 16" |
| 150 | 19-1/4" | 15-1/2" | 16-1/4" | 11-3/4" | 15-1/2" | 17-5/8" |
| 165 | 21-3/8" | 15" | 17-3/4" | 13" | 15-1/2" | 19-3/4" |
| 182 | 23-1/8" | 17" | 19-5/8" | 14-1/4" | 17-1/2" | 21-1/2" |
| 200 | 25" | 17" | 21-1/2" | 15-7/8" | 17" | 23-3/8" |
| 222 | 27-3/8" | 16-1/2" | 24" | 17-3/8" | 17" | 25-3/4" |
| 245 | 30-1/4" | 16-1/2" | 26-1/4" | 19-1/4" | 16-3/4" | 23-5/8" |
| 270 | 33" | 16-1/2" | 29" | 21-1/4" | 16-1/2" | 26-1/4" |
| 300 | 36-1/4" | 16-1/2" | 32-1/4" | 23-3/8" | 16-1/2" | 29-1/2" |
| 330 | 39-1/2" | 21-3/8" | 35-3/8" | 25-7/8" | 21-5/8" | 33-1/8" |
| 365 | 43-1/8" | 21-3/8" | 39-1/4" | 28-1/2" | 21-5/8" | 36-7/8" |
| Model Size | TH, DB, BH and UB Straight Discharge | BAU, TAU, TAD and BAD Angular Discharge | ||||||
| H | J | K | L | H | J | K | L | |
| 105 | 7-7/8" | 6-3/4" | 9-1/8" | 8-1/16" | 13-1/4" | 8-7/8" | 9-5/8" | 7-1/8" |
| 122 | 10-1/8" | 8-1/2" | 11-1/2" | 10-1/2" | 16-5/8" | 10-3/4" | 12-1/2" | 9-1/8" |
| 135 | 11-1/8" | 9-3/8" | 12-5/8" | 11-3/8" | 18-1/4" | 11-7/8" | 13-3/4" | 10" |
| 150 | 12-3/8" | 10-3/8" | 14-1/8" | 12-3/8" | 20-1/8" | 13-1/4" | 15-1/4" | 11-1/8" |
| 165 | 13-5/8" | 11-3/8" | 15-1/2" | 13-3/8" | 21-7/8" | 14-5/8" | 16-3/4" | 12-1/4" |
| 182 | 15" | 12-5/8" | 17-1/8" | 14-5/8" | 24-1/8" | 16" | 18-1/2" | 13-5/8" |
| 200 | 16-1/2" | 13-3/4" | 18-3/4" | 15-3/4" | 26-3/8" | 17-5/8" | 20-3/8" | 14-7/8" |
| 222 | 18-1/4" | 15-1/4" | 20-7/8" | 17-1/4" | 29" | 19-1/2" | 22-5/8" | 16-1/2" |
| 245 | 20-1/8" | 16-7/8" | 23" | 19-7/8" | 32-1/2" | 21-1/2" | 24-7/8" | 18-1/4" |
| 270 | 22-1/8" | 18-1/2" | 25-1/4" | 21-1/2" | 35-3/8" | 23-5/8" | 27-3/8" | 20" |
| 300 | 24-5/8" | 20-1/2" | 28-1/8" | 23-5/8" | 39-3/8" | 26-3/8" | 30-1/2" | 22-1/2" |
| 330 | 27-1/8" | 22-1/2" | 30-7/8" | 25-5/8" | 43" | 28-7/8" | 33-1/2" | 24-3/8" |
| 365 | 30" | 24-7/8" | 34-1/8" | 28" | 47-3/8" | 32" | 37-1/8" | 27" |
| Model Size | M | N | P | Q | R | S |
| 105 | 19-5/8" | 6" | 12-7/8" | - | - | 20-1/2" |
| 122 | 23-7/8" | 6-3/8" | 13-1/4" | 11-1/4" | 12-3/4" | 25-1/4" |
| 135 | 24-3/8" | 7" | 14-1/2" | 12-3/8" | 13-7/8" | 25-7/8" |
| 150 | 26-7/8" | 7-1/2" | 16-1/8" | 13-7/8" | 14-7/8" | 25-7/8" |
| 165 | 27-1/2" | 8-1/2" | 17-7/8" | 14-1/2" | 17" | 30-1/8" |
| 182 | 30-5/8" | 9-1/8" | 19-5/8" | 15-3/4" | 18-1/4" | 33-3/8" |
| 200 | 31-1/2" | 10" | 21-1/2" | 17-7/8" | 20-1/8" | 36-1/4" |
| 222 | 32-3/4" | 10-5/8" | 23-7/8" | 19-3/8" | 22-5/8" | 39-3/4" |
| 245 | 33-5/8" | 11-3/4" | 26-3/8" | 21-1/4" | 24-1/2" | 42-7/8" |
| 270 | 34-5/8" | 12-5/8" | 29" | 23-3/4" | 26-1/2" | 47" |
| 300 | 36" | 13-3/4" | 32-1/4" | 26" | 28-3/4" | 51-7/8" |
| 330 | 41-3/8" | 15" | 35-3/8" | 28-3/8" | 31-1/8" | 58-1/2" |
| 365 | 43-1/4" | 16-1/4" | 39" | 31" | 33-3/4" | 63-3/4" |
| Model Size | T | V | X | Wheel Diameter | Shaft Diameter | Max Motor Frame |
| 105 | 17" | 7/16" | 14" | 10-1/2" | 3/4" | 145T |
| 122 | 20" | 1/2" | 17" | 12-1/4" | 1" | 182T |
| 135 | 20" | 1/2" | 17" | 13-1/2" | 1" | 182T |
| 150 | 22" | 1/2" | 17-7/8" | 15" | 1" | 182T |
| 165 | 22" | 1/2" | 19-1/2" | 16-1/2" | 1" | 184T |
| 182 | 25" | 1/2" | 21-7/8" | 18-1/4" | 1-3/16" | 184T |
| 200 | 25" | 1/2" | 23-3/4" | 20" | 1-3/16" | 213T |
| 222 | 26" | 1/2" | 26-1/8" | 22-1/4" | 1-3/16" | 213T |
| 245 | 26" | 1/2" | 27-3/4" | 24-1/2" | 1-7/16" | 215T |
| 270 | 26" | 1/2" | 30-1/2" | 27" | 1-7/16" | 215T |
| 300 | 27" | 1/2" | 33-3/4" | 30" | 1-11/16" | 254T |
| 330 | 30-3/8" | 7/8" | 38-3/8" | 33" | 1-11/16" | 254T |
| 365 | 30-3/8" | 7/8" | 42-1/8" | 36-1/2" | 1-15/16" | 254T |
Model B - Class II (SWSI)
| Model Size | A | B | C | D | E | F |
| 105 | 16-3/8" | 15" | 11-3/4" | 8" | 13-1/2" | 14-3/4" |
| 122 | 16-3/8" | 15-1/2" | 13-1/4" | 9-5/8" | 15-1/2" | 14-3/4" |
| 135 | 17-5/8" | 15-1/2" | 14-5/8" | 10-3/4" | 15-1/2" | 16" |
| 150 | 19-1/4" | 15-1/2" | 14-5/8" | 10-3/4" | 15-1/2" | 17-5/8" |
| 165 | 21-3/8" | 21" | 17-3/4" | 13" | 21-1/2" | 19-3/4" |
| 182 | 23-1/8" | 21" | 19-5/8" | 14-1/4" | 21-1/2" | 21-1/2" |
| 200 | 25" | 21" | 21-1/2" | 15-7/8" | 21" | 23-3/8/" |
| 222 | 27-3/8" | 22-1/2" | 24" | 17-3/8" | 23" | 25-3/4" |
| 245 | 30-1/4" | 22-1/2" | 26-1/4" | 19-1/4" | 22-3/4" | 23-5/8" |
| 270 | 33" | 21" | 29" | 21-1/4" | 21-1/8" | 26-1/4" |
| 300 | 36-1/4" | 23" | 32-1/4" | 23-3/8" | 23-1/8" | 29-1/2" |
| 330 | 39-1/2" | 23" | 35-3/8" | 25-7/8" | 23-1/4" | 33-1/8" |
| 365 | 43-1/8" | 23" | 39-1/4" | 28-1/2" | 23-1/4" | 36-7/8" |
| Model Size | TH, DB, BH and UB Straight Discharge | BAU, TAU, TAD and BAD Angular Discharge | ||||||
| H | J | K | L | H | J | K | L | |
| 105 | 7-7/8" | 6-3/4" | 9-1/8" | 8-1/16" | 13-1/4" | 8-7/8" | 9-5/8" | 7-1/8" |
| 122 | 10-1/8" | 8-1/2" | 11-1/2" | 10-1/2" | 16-5/8" | 10-3/4" | 12-1/2" | 9-1/8" |
| 135 | 11-1/8" | 9-3/8" | 12-5/8" | 11-3/8" | 18-1/4" | 11-7/8" | 133/4" | 10" |
| 150 | 12-3/8" | 10-3/8" | 14-1/8" | 12-3/8" | 20-1/8" | 13-1/4" | 15-1/4" | 11-1/8" |
| 165 | 13-5/8" | 11-3/8" | 15-1/2" | 13-3/8" | 21-7/8" | 14-5/8" | 16-3/4" | 12-1/4" |
| 182 | 15" | 12-5/8" | 17-1/8" | 14-5/8" | 24-1/8" | 16" | 18-1/2" | 13-5/8" |
| 200 | 16-1/2" | 13-3/4" | 18-3/4" | 15-3/4" | 26-3/8" | 17-5/8" | 20-3/8" | 14-7/8" |
| 222 | 18-1/4" | 15-1/4" | 20-7/8" | 17-1/4" | 29" | 19-1/2" | 22-5/8" | 16-1/2" |
| 245 | 20-1/8" | 16-7/8" | 23" | 19-7/8" | 32-1/2" | 21-1/2" | 24-7/8" | 18-1/4" |
| 270 | 22-1/8" | 18-1/2" | 25-1/4" | 21-1/2" | 35-3/8" | 23-5/8" | 27-3/8" | 20" |
| 300 | 24-5/8" | 20-1/2" | 28-1/8" | 23-5/8" | 39-3/8" | 26-3/8" | 30-1/2" | 22-1/2" |
| 330 | 27-1/8" | 22-1/2" | 30-7/8" | 25-5/8" | 43" | 28-7/8" | 33-1/2" | 24-3/8" |
| 365 | 30" | 24-7/8" | 34-1/8" | 28" | 47-3/8" | 32" | 37-1/8" | 27" |
| Model Size | M | N | P | Q | R | S |
| 105 | 22-3/8" | 6" | 12-7/8" | - | - | 25-1/4" |
| 122 | 25-3/8" | 6-3/8" | 13-1/4" | 11-1/4" | 12-3/4" | 25-1/4" |
| 135 | 25-7/8" | 7" | 14-1/2" | 12-3/8" | 13-7/8" | 25-7/8" |
| 150 | 27" | 7-1/2" | 16-1/8" | 13-3/8" | 14-7/8" | 27-5/8" |
| 165 | 34-1/8" | 8-1/2" | 17-7/8" | 14-1/2" | 17" | 30-1/8" |
| 182 | 34-3/4" | 9-1/8" | 19-5/8" | 15-3/4" | 18-1/4" | 33-3/8" |
| 200 | 35-5/8" | 10" | 21-1/2" | 17-7/8" | 20-1/8" | 36-1/4" |
| 222 | 38-3/8" | 10-5/8" | 23-7/8" | 19-3/8" | 22-5/8" | 39-1/4" |
| 245 | 40-1/2" | 11-3/4" | 26-3/8" | 21-1/4" | 24-1/2" | 42-7/8" |
| 270 | 39-5/8" | 12-5/8" | 29" | 33-3/4" | 26-1/2" | 47" |
| 300 | 42-5/8" | 13-3/4" | 32-1/4" | 26" | 28-3/4" | 51-7/8" |
| 330 | 45" | 15" | 35-3/8" | 28-3/8" | 31-1/8" | 58-1/8" |
| 365 | 46-1/4" | 16-1/4" | 39" | 31" | 33-3/4" | 63-3/4" |
| Model Size | T | V | X | Wheel Diameter | Shaft Diameter | Max Motor Frame |
| 105 | 20" | 1/2" | 17" | 10-1/2" | 1" | 128T |
| 122 | 22" | 1/2" | 17" | 12-1/4" | 1-3/16" | 184T |
| 135 | 22" | 1/2" | 17" | 13-1/2" | 1-3/16" | 184T |
| 150 | 22" | 1/2" | 17-7/8" | 15" | 1-3/16" | 213T |
| 165 | 29" | 1/2" | 19-1/2" | 16-1/2" | 1-3/16" | 254T |
| 182 | 29" | 1/2" | 21-7/8" | 18-1/4" | 1-7/16" | 254T |
| 200 | 29" | 1/2" | 23-3/4" | 20" | 1-7/16" | 254T |
| 222 | 31-1/2" | 1/2" | 26-1/8" | 22-1/4" | 1-11/16" | 256T |
| 245 | 33" | 1/2" | 27-3/4" | 24-1/2" | 1-11/16" | 284T |
| 270 | 32" | 1/2" | 30-1/2" | 27" | 1-11/16" | 284T |
| 300 | 33" | 1/2" | 33-3/4" | 30" | 1-15/16" | 286T |
| 330 | 34" | 7/8" | 38-3/8" | 33" | 1-15/16" | 324T |
| 365 | 34" | 7/8" | 42-1/8" | 36-1/2" | 2-3/16" | 234T |
- General / Clean Air