SQBA Square Inline Fans manufactured by experts!
Square In-line Centrifugal Fans type SQBA are quiet, dependable in-line centrifugal fans recommended for a wide range of general exhaust applications where low, medium and high ranges of air volume and pressure are specified, in both ducted and non-ducted ventilation systems. Applications include virtually all types of light manufacturing, commercial and institutional buildings such as shopping centers, hospitals, schools, hotels, office and apartment buildings, warehouses, airports, bus terminals and many others. Designed for easy positioning and quick installation, the versatile Square In-Line can be located in side equipment rooms, in ceiling spaces, or as parts of O.E.M. equipment.are quiet and dependable centrifugal fans recommended for a wide range of general exhaust applications where low, medium and high ranges of air volume and pressure are specified, in both ducted and non-ducted ventilation systems. The advantages of belt drive inline centrifugal fans over direct drive fans include quiter operation, adjustable performance to suit operating needs and availability of larger volume units.
SQBA models feature a housing of durable mill galvanized outer “skin” over a rigid frame which is designed to provide an attractive finish, yet be a rigid unit to resist severe installation and handling conditions commonly encountered. Three of the four sides of the unit are removable , providing access to the internal parts for inspection and maintenance without disturbing the framework. The overlapping deep-spun venturi minimizes air turbulence and increases efficiency. The aluminum centrifugal wheel is a non-overloading, backward-inclined type, selected for low noise levels. The wheels are computer balanced on state-of-the-art equipment. The SQBA wheel is secured to a machined aluminum hub with a line bore, which eliminates the need for bushings.
Belt Drive: The SQBA utilizes a standard V-belt drive design with variable pitch cast iron motor pulley for adjusting fan speed. The drive shaft is turned, ground and polished. All components are out of the airstream. The motor support is adjustable for proper tensioning.
Bearings: Heavy duty pillow-block bearings with cast iron housing are self-aligning and re-lubricable.
Accessories: Atomatic and Motor-Operated Inlet Vane Dampers, Back Draft Dampers, Round Duct Connectors, Flanged Inlet, Flanged Outlet, Inlet/Outlet Guard, Companion Flanges, Mount Feet, Mount Brackets, Spring Vibration Isolators, Rubber-in-share Vibration Isolators, Suspended Mount Rods, Vertical Mounting Brackets, Spark Resistant Construction, Explosion Proof Construction, Insulated Housing, Belt Drive Guard, Motor Cover, Speed Control, Safety Disconnects and Protective Coatings.
All models bear the AMCA Seal. UL listings is available on most models.