This document provides information about Industrial Air Technology Corp (IATC), a manufacturer of centrifugal fans and blowers. It lists the industries IATC serves, engineering support offered, product lines including airfoil, backward inclined, industrial exhauster, and high pressure blower series, motor and drive options, accessories, and the information needed for IATC to provide a quote.

2. Industries Served
Aerospace
Agricultural
Aluminum
Alternative Fuels
Automotive
Battery Mfg
Cement
Chemical
Fertilizer
Food Processing
Foundry
Glass/Fiberglass
Graphite/Carbon
Insulation Mfg
Metal Reclamation
Mining
Paint Removal
Paper/Pulp
Petroleum/Gas
Pharmaceutical
Power Generation
Rubber/Plastic
Sand/Gravel/Asphalt
Sheet Metal
Steel
Textiles
Wood/Lumber
… just to name a few …

3. Engineering Support
• Computer Aided Design/Solid Modeling
– AutoCAD® / SolidWorks®
• Finite Element Analysis
– Simulation®
• Fan Performance Testing

4. BACKPLATE
Hubplate
Webplate
BLADES
Fins
Floats
INLET CYLINDER
Inlet Band
Inlet Sleeve
INLET CONE
Inlet
Inlet Bell
Inlet Flare
Inlet Nozzle
Venturi
SHROUD
Rim Shroud
Wheel Ring
Wheel Cone
Retaining Ring
Inlet Rim
Wheel Rim
Flange
Inlet Plate
UNITARY BASE
BELT
GUARD
SHAFT
GUARD
SCROLL
Band
Scroll Sheet
Wrapper
Wrap Sheet
Scroll Back
CHEEK
Scroll Side
Scroll
Piece
Side Plate
SHAFT
ADJUSTABLE
MOTOR
BASE
SUPPORT
UPRIGHTS
(Stiffeners)
BEARING
PEDESTAL
WHEEL
Impeller
Rotor
HOUSING
Scroll Housing
Volute
Casing
Fan Component
Terminology
SHAFT
SEAL
ACCESS
DOOR
WHEEL
HUB

5. Fan Belt Drive
Arrangements
Arr. 9 R
Arr. 1 W Arr. 3 X

6. Fan Direct Drive
Arrangements
Arr. 4
Arr. 8Arr. 7 (inlet box optional)
Arr. 4V

7. Arr. 4V Series
• Performance range - From 2,000 to 50,000 CFM & 2 1/2” to 20” S.P.
- Wheel sizes: Up to 36 1/2” diameter.
(Sizes start at 122 for BI & IRF, 182 for Airfoil)
• Maximum Design Temperature - up to 180 F
• Choice of Impeller Wheels – Airfoil (AFSW), Backward Inclined (BISW),
& Industrial Radial Flat (IRF)

8. V-Belt Drive vs.
Direct Drive Comparison
V-Belt Drive Direct Drive
Advantages Advantages
• Easier to change fan speed & performance
• More cost-effective to change fan speed & performance
• Arr. 9 – lower initial cost than Arr. 7 or 8 direct drive
• Arr. 1 available for all types of centrifugal fans
• Flexibility of motor positioning
• More compact (usually)
• Less components to maintain (simpler drive)
• Easier to balance to low vibration levels
• Can be less expensive than a V-belt drive (Arr. 1)
• No drive losses (see IATC catalog, pg. 9)
Disadvantages Disadvantages
• Requires more maintenance
• More difficult to guard
• Drive losses (see pg. 9 of IATC catalog)
• Tougher to achieve a tight balance
• Horsepower limitations w/ Arr. 9
• Fewer options to change speed or performance
• More expensive to change speed & performance
• More difficult to make a fan selection
• Precise alignment of motor/coupling/shaft is critical
• Horsepower limitations w/ Arr. 4 & 4V
V-Belt Drives Available Direct Drives Available
• Arrangement 1
• Arrangement 3 (Backward Inclined ONLY)
• Arrangement 9 (size, HP & operating temp. limitations)
• Arrangement 4 & 4V (size, HP & operating temp. limitations)
• Arrangement 7 (BISW or BIDW only)
• Arrangement 8

9. Motor Information
Industrial Air Technology Corp.’s
“House Motor” manufacturer is
We also have access to: Baldor/Reliance, TECO, Toshiba, Worldwide, Marathon,
& Siemens
Types: General Purpose, Severe Duty, & Explosion Proof
Efficiencies: High Efficiency (over 200 hp) & Premium Efficiency

10. Motor Positions

11. Product Features & Benefits
• Welding Standards – Comply with applicable
AWS (American Welding Standards)
specifications.
• Quality Craftsmanship – Results in
aesthetically pleasing product.
• Outlet Flange Mounting Holes – For easy
connection to ductwork.
• Split Taper-Lock Wheel Hub and Bushing –
For easy connection to the fan shaft – the
compression fitting results in a stronger hold.

12. • Easy Access Belt & Shaft Guards – Built with
the maintenance person in mind.
• Extended Lube Lines – For ease of bearing
maintenance.
• Split Housings – Pie Shaped split housings
available for ALL discharge positions; Horizontal
splits also available as an option, custom splits
also available.
• Gasketing – Provided with all access doors
(standard) to improve air containment and noise
reduction.
Product Features & Benefits

13. • Quality Finish – Three step paint process:
prepare surface with a chemical wipe-down,
apply rust-inhibitive primer (min. 2-mill coat),
apply industrial grade enamel topcoat (min. 2-mill
coat) – ability to apply most air-dry paints to
customer specifications.
• Powder-Coated Shaft Guards – Makes the
guards more durable, with a stronger, longer-
lasting finish.
Product Features & Benefits

14. Standard Features
Drain Plug
(Optional Stainless Steel Plug shown here)
Bolted Access Door
Extended Lube LinesGasket
Shaft & Belt GuardsInlet Flange Mounting Holes

15. Access Doors
IATC’s Standard -
Bolted
Also Available-Raised Frame
( bolted shown)
Also Available - Hinged
IATC provides easy access to the wheel for cleaning and maintenance.
One 6” centered door handle is provided on 12” x 12” or smaller doors.
Two evenly spaced door handles provided for doors larger than 12” x 12”.
• Black Nitrile Gasket material is standard.
• Internally “flush” mounts available upon request.

16. Split Housing
Horizontal Split
(split at housing centerline)
Pie Split
(section to allow for wheel removal)
IATC can provide split housing options for ease in:
•Transportation
•Unloading
•Installation
•Maintenance
Custom “split” configurations available. Recommended with Inlet Boxes

17. Quality
Centrifugal Fans

18. 0
20
40
60
80
100
120
140
0 50000 100000 150000 200000 250000 300000
Pressure(inWG)
Flow Rate (cfm)
Performance Range of IAT Fan Offerings
AFSW
BIDW
BISW
RTS
IRTIRO
BCLSTROL/H
IRFIRW/V

19. Airfoil Series
• Airfoil – aerodynamically shaped blades providing non-overloading,
highly efficient performance for clean air applications.
• Airfoil performance range - From 2,000 to 280,000 CFM
= 2 ½” to 28” S.P.
= Wheel sizes: 18¼” to 89” diameter. (Sizes 182 to 890)
• Maximum Design Temperature - up to 800 F (varies by arrangement)

20. • Aerodynamic Blades – Reduced drag
results in a non-overloading design that can
produce greater flow volumes than the BISW.
• Higher Speeds are Possible – With higher
speeds, CFM and Static Pressure can go
beyond BISW’s capabilities.
• Increased Efficiency – The aerodynamic
blade design results in lower brake HP
requirements and a potentially quieter fan
than BISW.
Airfoil Series Features & Benefits

21. BI Series
Backward Inclined
• BISW & BIDW - Both fans have flat, backward inclined blades providing
non-overloading highly efficient performance for relatively clean air
applications.
• BISW (Single-Wide) performance range - From 3200 to 250,000 CFM
and up to 20” S.P. Wheel sizes: 12 ¼” to 89” diameter.
• BIDW (Double-Wide) performance range - From 16,000 to 280,000 CFM
and up to 12” S.P. Wheel sizes: 18 ¼” to 73” diameter.
• Maximum Design Temperature - up to 800 F (varies by arrangement)

22. BISW’s

23. BIDW’s

24. Stainless Steel BISW
Food-Grade White Paint
on Carbon Steel Structure
– Wash down Ready!

25. IE Series
Industrial Exhausters
IE Series - Suitable for moderate pressure, clean air
industrial processes, or material handling applications.
IRO (Industrial Radial Open) – for granular material
Performance range: 200 to 100,000+ CFM and up to 45” S.P.
Feature: Blade and Housing wear plates and liners optional.
Size 12 ¼” to 85 ¼” diameter wheels. Arrangement 1, 4, 8 & 9.
Max Design
Temp: 1000 F
(common with
all IATC IE
Series fans)
– varies by
arrangement.
IRO
wheel
IRF variant

26. IE Series
Industrial Exhausters
• IRW (Industrial Radial Wool) – for fibrous, wooly material
Performance range: 2000 to 16,000+ CFM and 1” to 30” S.P.
Sizes available: 19 1/8” to 36 1/2” dia. wheels. (model 191 to 365)
IRW type Industrial Exhausters are available in arrangements 1, 4, 8, & 9.
Benefit: back plate and two-plane gussets reduce the possibility
of material buildup on wheel. Feature: chopper blade version (IRV) available. IRV
variant

27. • IRT (Industrial Radial Tip) – for light abrasive material
Performance range: 1000 to 125,000+ CFM and 1” to 45+” S.P.
Industrial Radial Tip is the most efficient design of the industrial
exhausters. IRT’s are available in sizes 19 1/8” to 85 1/4” wheel dia.
IRT’s can be built in drive arrangements 1, 4, 8, & 9.
The IRT fan is an excellent selection where energy savings are a
premium but material handling characteristics are required.
IE Series
Industrial Exhausters

28. RTS
Radial Tipped Series
• RTS - Designed with backwardly inclined curved blades for applications
generally too harsh for the BI line and not harsh enough to require the IE line.
• Fan design reduces material build-up on the wheel – in effect, the fan wheel is
self-cleaning. For High-Temp. applications up to 800 F. (varies by arr.)
• Delivers more material handling capabilities and higher pressures than
Backwards Inclined line; and higher efficiencies than Industrial Exhauster line.
• Performance delivered is between: 10,000 to 220,000 CFM and 6” to 32” of
Static Pressure. Available in wheel sizes 27” to 80 ¾” diameters.

29. RTS
Fans

30. TROH & TROL
Turbo Radial Open
• TROH - High pressure/high volume blower produces 1000 to 26,300 CFM.
• TROL - High pressure/low volume blower produces 500 to 10,900 CFM.
• Static Pressure up to 110” WG (depending on type/size).
• TROH & TROL blowers available in sizes from 20” to 58” wheel diameters.
• IATC’s Rugged Class 100 construction remains durable under the stress of high
pressure and/or high temperature (up to 1000 F. airstream) applications.
• Available for most sizes in arrangements 1, 4 and 8. (hi-temp. arr. 1 & 8 only)
• Radial blade wheel minimizes instability across the fan’s performance curve.

31. Various
TROH’s &
TROL’s –
IATC’s
High-
Pressure
Blower
Design

32. BCLS
Backward Curved, Low Volume, Single-Wide
• BCLS - Suitable for high efficiency, low noise, high pressure applications in
clean to lightly loaded airstream – a benefit of this non-overloading design.
• IATC’s Class 100 construction, capable of 30” to 78” WG Static Pressure,
and volume up to 70,800 CFM.
• BCLS blowers available in sizes 27” to 73” wheel diameters.
• Ideal for High Temperature (up to 1000 F. airstream) applications if required.
• Available in drive arrangements 1, 4 and 8.

33. BCLS high-pressure blowers are
used in the scrubber industry, in
combustion, gas boosting, air
cooling, glass blowing, fume
exhaust systems, seal air dampers,
and in other various process
systems.
Sample markets served by the
BCLS blowers: Chemical, Cement,
Food Processing, Paper, Textile,
Pharmaceutical, Steel, Plastics,
Glass, & the Power Industry, just
to name a few…
BCLS High Pressure Blower

34. Quality Assurance Documentation :
1. Fabrication Checklist: completed and
shipped with every order.
2. Wheel/Shaft Dynamic Balance Record:
(1st balance test)
3. Final Maximum Vibration: level of
assembled unit. (2nd balance test- up to
200 hp)
4. Final Bearing Settings: – so you know
the bearings were properly set when the
fan left the factory.
5. Installation, Operation, & Maintenance
Manual with bearing lubrication
schedule insert.
Quality Assurance

35. Capabilities and Services
• Lead Times – Delivery lead times quoted after approval
drawing is signed and returned. Ask your sales rep for
current factory lead times – always looking to improve!
• Expedite Options –
– New Fan purchases: in as little as 1 week – ask for pricing/delivery
– Replacement parts: as little as 1 or 2 days!
– Rebuild fan wheel: 1 week or less!
• Spare Parts Program – IATC can offer a spare parts
package for the customer with every fan quote – to avoid
costly downtime.
• Rebuild/Repair Services – In addition to IATC’s spare
parts program, the factory can re-build or repair other fan
manufacturer’s designs.

36. Ability to weld Exotic Alloys
Industrial Air Technology Corp. welders are certified to weld in:
Corten®, Hastelloy™, Inconel®, Monel®, AL-6XN®, as well as
various grades of stainless steel and aluminum alloys.
Abrasion resistant materials for heavy duty material handling fans can include:
AR400, AR500, T-1, Weller Clad (Chromium Carbide), WellerPLUS 500 DS.

37. Fan Accessories
Inlet & Outlet Transitions Variable Inlet Vane
Damper (V.I.V.)
Transition with Damper
Outlet Damper on IRO
Opposed-Blade DamperV.I.V. Damper w/
Bird Screen

38. Flex Connectors
Vibration Isolators
BISW with
Thermal Insulation
Fan Accessories
Inlet Boxes
Silencer
Custom Filter Box/Silencer

39. Quote Specification Information
Performance Specifications:
ACFM (Air Flow) – ACTUAL Cubic Feet per Minute
Static Pressure (expressed in Water Gauge inches)
Air Density Variables (Operating Temperature? Elevation? Negative Pressure?)
Application Information:
Market? Purpose? Industry? (not the customer’s name) – what is the fan to be
used for, will it be inside, outside, clean air, dirty air, composition of airstream?
Construction Information:
Drive Arrangement? (Direct Drive or Belt Drive?), Rotation? (Clock-wise or
Counter-Clockwise?), Discharge Position? (in 45 angle increments)
Accessories:
Inlet Box? Inlet/Outlet Dampers? Silencer? Flex Connectors? Inlet/Outlet Screens?
Transitions? Special Paint? Vibration Isolators? Temperature or Vibration
Sensors? Shaft Cooler? ASK US !!!
What Information does IATC need in order to process an RFQ?

40. Industrial Air Technology, Corp.
Mailing Address: P.O. Box 2317
Gaylord, MI 49734, US
Shipping Address: 1272 Milbocker Road
Gaylord, MI 49735, US
Main Phone 989.705.1768
Direct to Customer Service for
Quotations or Orders 989.731.5840
E-mail: sales@indairtech.com