SQB Belt Drive Square Inline Centrifugal Duct Fan

In-line/Sidewall Duct Fan Series

SQB Model

Model Features

  • Exhaust air up to 24,000 CFM in high static pressure applications up to 3-1/2" w.g.
  • Belt drives permit easy performance adjustments when needed
  • Ideal for applications where space is limited
  • Non-overloading backward inclined wheel for efficiency at higher static pressures
  • AMCA Air and Sound Licensed
  • cULus 705 Listed

AMCA Air and Sound Licensed   cULus Listed

Model Overview

SQB square in-line duct mounted fans are available in sizes 7 through 42, moving from 100 to over 24,000 CFM, with high static pressure capability up to 3-1/2". SQB units are the perfect selection for clean air applications where space is a leading consideration. The compact housing with removable access doors and side discharge can be mounted in any orientation. AMCA licensed performance and UL listing assure that you've made a reliable selection.

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

Size CFM Range Max SP
7 86 to 423 1-3/4"
8 331 to 1318 1-3/4"
10 436 to 2027 2"
12 769 to 3384 2"
15 1135 to 4421 2-1/4"
HP15 741 to 3539 3-1/2"
18 1443 to 6111 2-1/4"
HP18 1559 to 5069 3-1/4"
20 2028 to 7916 2-1/4"
HP20 1908 to 6248 2-3/4"
24 2395 to 11240 2-1/4"
HP24 3195 to 10996 3-1/2"
30 3879 to 15168 2-1/4"
HP30 3906 to 12632 3-1/2"
36 5189 to 18767 2"
HP36 5958 to 16117 2-1/2"
42 6669 to 24544 1-1/4"
Dimensional Drawing SQB
Size A B C
7 15" 23" 11-7/8"
8 15" 23" 11-7/8"
10 17" 23" 13-7/8"
12 21" 23" 17-7/8"
15 24" 30" 21-7/8"
18 28" 30" 23-7/8"
20 32" 34" 27-7/8"
24 39" 38" 34-7/8"
30 44" 40" 39-7/8"
36 52" 45" 47-7/8"
42 58" 53" 53-7/8"

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

Standard Accessories

Description  
External Grease Fittings   Download
Mounted and Wired Disconnect   Download
Filter Box   Download
Side Discharge   Download
Belt Guard   Download
Motor Cover   Download
Inlet Guard   Download
Outlet Guard   Download
Hanging Bracket/Mounting Foot with Hanging Spring Isolator   Download
Hanging Spring Isolator   Download
Hanging Rubber in Shear Isolator   Download
Assorted Disconnects   Download
Heavy-duty Disconnect   Download
Backdraft Damper   Download
Insulated Housing   Download

Description  
SQB Catalog Pages   Download
SQB Product Submittal   Download
SQB IOM   Download

  • General/Clean Air
  • Spark Resistant
  • Offices/Common Areas