S&P USA brand Model SQB Square Inline Belt Drive Centrifugal Duct Fan General Application CFM Range: 184 - 9,342 - 1 or 3 Phase

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

MODEL OVERVIEW
Model SQB fans are available in sizes 7 through 42, moving from 100 to over 24,000 CFM, with high static pressure capabilities 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 (2), can be mounted in any orientation. 

Blower/Housing
 • Aluminum, non-overloading, backward inclined centrifugal wheel statically and dynamically balanced.
 • Deep spun venturi inlet.
 • Heavy-gauge galvanized steel housing.
 • Integral inlet and outlet duct collars.
 • Universal mounting - horizontal, vertical, or any angle.
 • Motors and drives out of the airstream.
 • Removable drive and bearing covers for easy access.
 • Easy access to interior of unit with removable side panels (two per unit) with closed cell neoprene gasketing.
 • Motor, drives, wheel, shaft, and bearings removable from unit without disconnecting duct.
 • Motor mount plate with integral belt tensioning device.

Shaft and Bearings
 • Precision turned, ground, and polished steel fan shaft and keyed.
 • Self aligning cast iron air handling pillow block bearings with re-lube fitting, double sealed and pre-lubricated, designed for 200,000 hour life, L50.

 Motor and Drives
 • Permanently sealed ball bearing type motor furnished to the specified voltage, phase, and enclosure.
 • Open drip-proof is standard. Two speed, totally enclosed, and explosion proof motors can be specified for most models.
 • Drives are specified for a minimum of 150% of driven horsepower. Cast iron motor pulleys are factory set to the required RPM and are adjustable for final system balancing.
 • Disconnect switch standard on single speed drip-proof and totally enclosed motors. 

Certifications
 • AMCA - the AMCA Seal on all units assures certified rating of air and sound performance.
 • cULus - most models are available as listed by Underwriters Laboratories under Standard 705 when specified.

Models SQB07ML1S, SQB07MH1S, SQB07PH1S, SQB08ML1S, SQB08MH1S, SQB08PH1S, SQB08QH1S, SQB08QH3S, SQB10MH1S, SQB10PH1S, SQB10QH1S, SQB10QH3S, SQB10RH1S, SQB10RH3S, SQB12MH1S, SQB12PH1S, SQB12QH1S, SQB12QH3S, SQB12RH1S, SQB12RH3S, SQB12SH1S, SQB12SH3S, SQB15MH1S, SQB15PH1S, SQB15QH1S, SQB15QH3S, SQB15RH1S, SQB15RH3S, SQB15SH1S, SQB15SH3S, SQB15TH1S, SQB15TH3S, SQB18PH1S, SQB18QH1S, SQB18QH3S, SQB18RH1S, SQB18RH3S, SQB18SH1S, SQB18SH3S, SQB18TH1S, SQB18TH3S, SQB18VH1S, SQB18VH3S, SQB20PH1S, SQB20QH1S, SQB20QH3S, SQB20RH1S, SQB20RH3S, SQB20SH1S, SQB20SH3S, SQB20TH1S, SQB20TH3S, SQB20VH1S, SQB20VH3S, SQB24QH1S, SQB24QH3S, SQB24RH1S, SQB24RH3S, SQB24SH1S, SQB24SH3S, SQB24TH1S, SQB24TH3S, SQB24VH1S, QB24VH3S, SQB24WH3S