Cast Aluminum Pressure Blowers

Transcription

1 BULLETIN 916 November 2008 Cast Aluminum Pressure Blowers Model CA/CABD Direct Drive/Belt Driven

2 CA/CABD Cast Aluminum Pressure Blowers Aerovent s Cast Aluminum Pressure Blowers are the perfect choice for providing low volume, high pressure air for cooling, ventilating and exhaust systems which handle dust, materials or corrosive fumes. These direct drive (CA) or belt driven (CABD) blowers feature heavy duty cast aluminum housings with cast aluminum wheels for extra long life and trouble-free service. Capabilities l Seven housing sizes: 8", 9", 10", 12", 14", 15", and 18" l Airflow capacities to 3,800 CFM l Static pressures to 20" l Arrangements 1, 4, 4HI, and 9 available l Temperatures to 150 F for Arrangements 4 and 4HI and 200 F for Arrangements 1 and 9 Features l Rugged cast aluminum housing is inherently corrosion resistant l Cast aluminum radial blade and backward curved wheels are corrosion and spark resistant Arrangement 4 CA Cast Aluminum Pressure Blower Shown with Optional Weather Hood with Screen l Rotatable to 7 discharge positions l 200,000 hour average life bearings on belt driven units l Round inlet and discharge for easy duct connections l Heavy housings reduce noise levels Applications l Laboratory fume hood exhaust l Polishing and grinding machine dust removal l Welding fume exhaust l Combustion air supply l Raw materials, waste, and fibers conveying l Drying processes l General exhaust applications Arrangement 4 CA Cast Aluminum Pressure Blower Shown with Optional Inlet and Discharge Flanges Type B Backward Curved Wheel Type R Radial Blade Wheel 2 Aerovent Bulletin 916

3 Dust Collecting & Pneumatic Conveying Pneumatic conveying embraces both dust collecting and conveying. In a typical system the amount of material transported is low compared to the amount of air used. Usually, a large quantity of fast-flowing air is needed to assure entrainment of material. Consequently, the materials moved have little effect on the performance of the fan. Where the sole purpose of the pneumatic system is to convey as much material as possible, different factors are involved. Dust Collecting & Fume Removal All airborne material, except fumes and the finest of dusts, will settle in ducts and fans if a minimum velocity is not maintained. In dust collecting, the air quantity is determined by the hood size and velocity, therefore it is usually most economical to maintain the lowest duct velocity that will keep the material in suspension. Raising the velocity raises the horsepower. For example, assume 1,000 CFM through a 12" pipe at 1,280 FPM with 0.2" resistance per 100 feet. Doubling the velocity while maintaining the same CFM would require an 8 1 2" pipe at 1.2" resistance per 100 feet. Some state codes give minimum velocities. Where no code applies, the figures shown in Table 1 may be used. When choosing the fan size for a dust collecting system, be certain that the velocity at the fan inlet and outlet is not lower than the minimum velocity required to keep the dust suspended. Material Conveying The problem of inducing the material into a conveying system is often a difficult one. The best overall method is one that feeds the material into the airstream evenly by either mechanical or gravity means. It is often required that the fan pick the material up as well as convey it. One misbelief frequently encountered is that the ability of a system to pick up material is due to the fan s suction pressure. Suction in itself is useless. It is the velocity moving past the material that induces it to flow. For this reason, it is important not to plug up the entrance of the duct with material to be conveyed. When figuring entrance loss to a conveying system, it should be remembered that where an appreciable amount of bulky material is to be moved, it may reduce the effective area of the inlet and thus increase the entrance velocity and loss. Since the purpose of a conveying system is to move a lot of material (as contrasted to dust collecting), the ratio of material to air volume is quite important. Experience has established good minimum velocities for common materials and these are given in Table 2. For those applications not listed, Chart B gives CFM/lb. of material and minimum velocities based on the weight of the material. Table 1. Dust Collecting & Fume Removal Duct Velocities VELOCITY MATERIAL (FPM) 1. Grinding Dust Foundry Sandblast Dust Wood Flour Sander Dust Shavings, Dry SHAVINGS, WET SAWDUST, DRY SAWDUST, WET WOOD BLOCKS HOG WASTE BUFFING LINT, DRY BUFFING LINT, WET METAL TURNINGS LEAD DUST COTTON COTTON LINT WOOL JUTE LINT JUTE DUST GRAIN DUST SHOE DUST RUBBER DUST RUBBER BUFFINGS BAKELITE MOULDING POWDER BAKELITE MOULDING DUST OVEN HOOD TAIL PIPE EXHAUST MELTING POT & FURNACE METALLIZING BOOTH SOLDERING FUMES PAINT SPRAY CARBON BLACK PAPER Table 2. Material Conveying Duct Velocities VELOCITY MATERIAL (FPM) 1. WOOD CHIPS RAGS GROUND FEED POWDERED COAL SAND WOOD FLOUR SAWDUST HOG WASTE PULP CHIPS WOOD BLOCKS CEMENT COTTON WOOL JUTE HEMP VEGETABLE PULP, DRY PAPER FLOUR SALT GRAIN COFFEE BEANS SUGAR Aerovent Bulletin 916 3

4 Dust Collecting & Pneumatic Conveying Wherever material is airborne, the fan must provide the energy to move the material. In small concentrations this is negligible, but in most conveying systems it is important. It is reflected as an increased resistance. Chart A gives the ratio of friction loss of the conveying system to the same system handling clean air The material conveying capacity of a system varies as the square of the velocity since it is a function of the velocity pressure. The economics of a given installation determine whether the minimum or a higher velocity shall be used. It is sometimes thought that a larger fan is naturally better than a smaller one. This is far from correct, since material is just as liable to settle in a fan as in a duct. If the inlet and outlet velocities of a fan are at least as high as the minimum conveying velocity, no settling should occur in the fan. Abrasion & Corrosion Certain materials can be highly abrasive by nature and, depending on the concentration and properties of the abrasive, can greatly affect the selection of the type of fan and wheel design. Proper fan and wheel selection alone may not satisfy the abrasive conditions. Special abrasive, impact, corrosion, and heat resistant materials or coatings may be required to further increase the life of the fan. Although Aerovent has the experience to recommend various materials or coatings to increase the life of the product, it must be recognized that to date no materials have been discovered that completely resist these conditions. Therefore, resistance to them is one of degree only. Chart A. Friction For Conveying FRICTION MULTIPLIER MULTIPLY FRICTION FOR CLEAN AIR BY MULTIPLIER CUBIC FEET OF AIR PER MINUTE PER POUND OF MATERIAL Chart B. Average Velocities & Air Volumes For Conveying Materials CONVEYING VELOCITY IN FT. PER MIN CU. FT. OF AIR PER LB. OF MATERIAL VALUES ARE FOR BULK MATERIALS OF AVERAGE SURFACE CONDITION. WEIGHTS ARE NOT DENSITIES. CONVEYING VELOCITY FT. PERMIN. CU. FT. OF AIR PER LB. OF MATERIAL BULK WT. OF MATERIALS IN LBS. PER CU. FT. Spark-Resistant Construction Described below are three classifications as defined by AMCA Standards for spark resistant construction. Type A B C Construction Details All parts of the fan in contact with the air or gas being handled shall be made of nonferrous material. Steps must also be taken to ensure that the impeller, bearings, and shaft are adequately attached and/or restrained to prevent a lateral or axial shift in these components. Not available in Arr. 4. The fan shall have a nonferrous impeller and nonferrous ring about the opening through which the shaft passes. Ferrous hubs, shafts, and hardware are allowed provided con-struction is such that a shift of impeller or shaft will not permit two ferrous parts of the fan to rub or strike. Steps must also be taken to ensure that the impeller, bearings, and shaft are adequately attached and/or restrained to prevent a lateral or axial shift in these components. The fan shall be so constructed that a shift of the impeller or shaft will not permit two ferrous parts of the fan to rub or strike. NOTES: 1. No bearings, drive components or electrical devices shall be placed in the gas stream unless they are constructed or enclosed in such a manner that failure of that component cannot ignite the surrounding gas stream. 2. The user shall electrically ground all fan parts. 3. For this standard, nonferrous material shall be any material with less than 5% iron or any other material with demonstrated ability to be spark resistant. 4. The use of aluminum or aluminum alloys in the presence of steel that has been allowed to rust requires special consideration. Research, by the U.S. Bureau of Mines and others, has shown that aluminum impellers rubbing on rust steel may cause high intensity sparking. The use of the above standard in no way implies a guarantee of safety for any level of spark resistance. Spark resistant construction also does not protect against ignition of explosive gases caused by catastrophic failure or from any airstream material that may be present in a system. 4 Aerovent Bulletin 916

5 Accessories Belt Guard OSHA belt guard covers the sheaves and belts, protecting personnel from moving drive parts. Solid sheet, painted steel construction. Inlet Filter Filters are recommended where heavy dust conditions exist. Filter housing constructed of carbon steel with baked enamel finish. Polyester, paper, or wire-mesh filter media available as well as a powder coated steel hood. Specify standard stub inlet of fan for mounting. Shaft & Bearing Guard OSHA shaft and bearing guard protects personnel from moving drive parts. Features painted steel construction. Inlet & Outlet Guards Spiral wire type inlet and outlet guards, featuring an electrostatic zinc finish, are offered to protect personnel from the moving parts. Recommended for use when no ductwork is attached to the inlet and/or outlet. Not available on flanged connections. Inlet & Outlet Flange Cast aluminum flanges mount to either the inlet or outlet. Punched flanges, matching ANSI 125/150, are available upon request. Outlet flange not available in downblast discharge configuration. Shaft Seal A shaft seal reduces leakage and protects the bearings and motor from a contaminated airstream. Shaft seals are heavy Teflon type secured to the inside of the fan housing. Housing Drain 1 2" diameter drain connection with plug. Slide Gate Damper Dampers feature cast aluminum frame with galvanized steel gate. Available on inlet or outlet. Slide gate type dampers provide manual adjustment of airflow and flexibility to meet any application. Performance Data Silencer Silencers are designed to reduce noise emanating from the fan inlet. Silencers are constructed of a 2- ply aluminum outer shell over acoustical absorption material and a perforated aluminum core. Silencer has slip-on design for easy mounting to inlet of fan. Not for use with standard inlet filter. Combination inlet filter/silencer is available upon request. Weather Hood Weather Hood with bird screen provides protection from the elements. The enamel-finished steel hood is available for the inlet or outlet. Catalog Numbering System To identify a specific fan for ordering or engineering specifications, it is necessary to show the complete information listed in the performance tables under the catalog number. Specify direct drive or belt drive in addition to the catalog number. All performance data is available in curve form upon request. Housing Size Wheel Design Inlet Diameter Wheel Diameter 12 R Aerovent Bulletin 916 5

6 CA Direct Drive at 3450 RPM (60 Hz) Radial Blade CATALOG SELECTOR 1" SP 2" SP 3" SP 4" SP 5" SP 6" SP 7" SP 8" SP NUMBER NUMBER CFM BHP CFM BHP CFM BHP CFM BHP CFM BHP CFM BHP CFM BHP CFM BHP 8 08R R04A R R04B R R05A R R05B R R05C R R05D R R05E R R06A R R06B R R06C R R06D R R06E R R07A R R07B R R07C R R07D R R07E R R07F R R06A R R06B R R07A R R07B R R08A R R08B R R06C R R07C R R06D R R08C R R07D R R08D R R06A R R06B R R06C R R08A R R10A R R08B R R10B R R08C R R10C R R06A R R08A R R06B R R10A R R06C R R08B R R08C R R10B R R10C CATALOG SELECTOR 9" SP 10" SP 11" SP 12" SP 14" SP 16" SP 18" SP 20" SP NUMBER NUMBER CFM BHP CFM BHP CFM BHP CFM BHP CFM BHP CFM BHP CFM BHP CFM BHP 12R R07D R R07E R R07F R R07A R R08A R R06A R R06B R R08B R R07B R R06C R R07C R R08C R R06D R R07D R R08D R R06A R R08A R R10A R R06B R R06C R R08B R R10B R R08C R R10C R R06A R R08A R R10A R R06B R R06C R R08B R R10B R R08C R R10C Aerovent Bulletin 916

7 CA Direct Drive at 2850 RPM (50 Hz) Radial Blade CATALOG SELECTOR 1" SP 2" SP 3" SP 4" SP 5" SP 6" SP 7" SP 8" SP NUMBER NUMBER CFM BHP CFM BHP CFM BHP CFM BHP CFM BHP CFM BHP CFM BHP CFM BHP 8 08R R04A R R04B R R05A R R05C R R05D R R05E R R06A R R06B R R06C R R06D R R06E R R06F R R06G R R07A R R07B R R07C R R07D R R07E R R07F R R07G R R06A R R07A R R06B R R08A R R07B R R08B R R06C R R07C R R06D R R08C R R07D R R08D R R06A R R06B R R08A R R10A R R06C R R08B R R10B R R08C R R10C R R06A R R08A R R06B R R10A R R06C R R08B R R10B R R08C R R10C CATALOG SELECTOR 9" SP 10" SP 11" SP 12" SP 13" SP 14" SP 15" SP 16" SP NUMBER NUMBER CFM BHP CFM BHP CFM BHP CFM BHP CFM BHP CFM BHP CFM BHP CFM BHP 14R R06C R R06D R R07D R R08D R R06B R R08B R R06C R R10B R R08C R R10C R R06B R R06C R R08B R R10B R R08C R R10C Aerovent Bulletin 916 7

8 CA Direct Drive at 3450 RPM (60Hz) Backward Curved CATALOG SELECTOR 1" SP 2" SP 3" SP 4" SP 5" SP 6" SP 7" SP 8" SP NUMBER NUMBER CFM BHP CFM BHP CFM BHP CFM BHP CFM BHP CFM BHP CFM BHP CFM BHP 9 09B B05A B B06A B B06B B B07A B B07B B B06A B B07A B B08A B B06B B B07B B B08B B B06A B B08A B B10A B B06B B B06C B B08B B B08C B B10B B B10C B B06A B B08A B B06B B B10A B B06C B B08B B B10B B B08C B B10C CATALOG SELECTOR 9" SP 10" SP 11" SP 12" SP 14" SP 16" SP 18" SP 20" SP NUMBER NUMBER CFM BHP CFM BHP CFM BHP CFM BHP CFM BHP CFM BHP CFM BHP CFM BHP 12 12B B07B B B06A B B08A B B07A B B06B B B07B B B08B B B10A B B06A B B08A B B06B B B06C B B08B B B10B B B08C B B10C B B06A B B08A B B10A B B06B B B06C B B08B B B10B B B08C B B10C Aerovent Bulletin 916

9 CA Direct Drive at 2850 RPM (50 Hz) Backward Curved CATALOG SELECTOR 1" SP 2" SP 3" SP 4" SP 5" SP 6" SP 7" SP 8" SP NUMBER NUMBER CFM BHP CFM BHP CFM BHP CFM BHP CFM BHP CFM BHP CFM BHP CFM BHP 9 09B B05A B B06A B B06B B B07A B B07B B B07C B B06A B B07A B B08A B B06B B B07B B B08B B B06A B B08A B B10A B B06B B B06C B B08B B B10B B B08C B B10C B B06A B B08A B B10A B B06B B B06C B B08B B B10B B B08C B B10C CATALOG SELECTOR 9" SP 10" SP 11" SP 12" SP 13" SP 14" SP 15" SP 16" SP NUMBER NUMBER CFM BHP CFM BHP CFM BHP CFM BHP CFM BHP CFM BHP CFM BHP CFM BHP 15B B06B B B10B B B08B B B06C B B10C B B08C B B06B B B08B B B06C B B10B B B08C B B10C Aerovent Bulletin 916 9

10 Size 8 CABD Belt Driven Radial Blade VOLUME 0.5" SP 1" SP 1.5" SP 2" SP 2.5" SP 3" SP 3.5" SP 4" SP 4.5" SP 5" SP CFM RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP Wheel Diameter: 8.00" O.D. Inlet = 4" Catalog Number = 08R Selector Number = 08R04A Size 9 CABD Belt Driven Radial Blade VOLUME 1" SP 1.5" SP 2" SP 2.5" SP 3" SP 3.5" SP 4" SP 4.5" SP 5" SP 6" SP CFM RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP Wheel Diameter: 9.00" O.D. Inlet = 5" Catalog Number = 09R Selector Number = 09R054 Size 10 CABD Belt Driven Radial Blade VOLUME 1" SP 2" SP 3" SP 4" SP 5" SP 6" SP 7" SP 8" SP 9" SP 10" SP CFM RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP Wheel Diameter: " O.D. Inlet = 6" Catalog Number = 10R Selector Number = 10R06A Size 12 CABD Belt Driven Radial Blade VOLUME 2" SP 3" SP 4" SP 5" SP 6" SP 7" SP 8" SP 9" SP 10" SP 12" SP CFM RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP Wheel Diameter: 12.25" O.D. Inlet = 7" Catalog Number = 12R Selector Number = 12R07A 10 Aerovent Bulletin 916

11 Size 14 CABD Belt Driven Radial Blade VOLUME 2" SP 4" SP 6" SP 8" SP 10" SP 12" SP 14" SP 16" SP 18" SP 20" SP CFM RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP Wheel Diameter: 14.00" O.D. Inlet = 7" Catalog Number = 14R Selector Number = 14R07A Size 15 CABD Belt Driven Radial Blade VOLUME 2" SP 4" SP 6" SP 8" SP 10" SP 12" SP 14" SP 16" SP 18" SP 20" SP CFM RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP Wheel Diameter: 15.50" O.D. Inlet = 8" Catalog Number = 15R Selector Number =15R08A Size 18 CABD Belt Driven Radial Blade VOLUME 4" SP 6" SP 8" SP 10" SP 12" SP 14" SP 16" SP 18" SP 20" SP 22" SP CFM RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP Wheel Diameter: 18.00" O.D. Inlet = 8" Catalog Number = 18R Selector Number = 18R08A Aerovent Bulletin

12 Dimensional Data Direct Drive Arrangement 4 CA 14 ALSO AVAILABLE WITH 6 AND 8 INLETS CA 15 AND TPB 18 ALSO AVAILABLE WITH 6 AND 10 INLETS ALL MODELS, DISCHARGE FLANGE NOT AVAILABLE FOR DOWN BLAST POSITION. NOTES: 01. CW SHOWN, CCW SIMILAR BUT OPPOSITE 02. SEE R33865 FOR INLET FLANGE AND OPTIONAL OUTLET FLANGE DIMENSIONS. **03. NOMINAL INLET & OUTLET DIAMETER HOUSING A** B C** DIMENSIONS (IN.) D FR G H HA HC HE HG J K L M P Q CA C CA C TC CA C TC C CA TC T CA CA CA T T T T T T T T R33842D DISCHARGE POSITIOn TOP HORIZOnTAL BOTTOM HORIZOnTAL UP BLAST DOWn BLAST TOP 45 o DOWn BOTTOM 45 o UP TOP 45 o UP ROTATIOn CLOCK- WISE COUnTER CLOCK- WISE note: Arrangement 1 - Less Motor Arrangement 9 - With Motor 12 Aerovent Bulletin 916

13 Dimensional Data Direct Drive Arrangement 4HI CA CA 14 ALSO AVAILABLE WITH 5.50 AND 7.50 INLETS CA 15 AND CA 18 ALSO AVAILABLE WITH 5.50 AND 9.69 INLETS HOUSING DIMENSIONS (IN.) FR P CA-8 56C CA-9 56C TC CA-10 56C TC C CA TC T CA T T CA T T CA T T NOTES: 01. CW SHOWN, CCW SIMILAR BUT OPPOSITE 02. SEE R33865A FOR INLET FLANGE AND OPTIONAL OUTLET FLANGE DIMENSIONS. *03. NOMINAL OUTLET DIAMETER HOUSING A* B C DIMENSIONS (IN.) HA HC HE HG JA Q CA CA CA CA CA CA CA R38848C H Accessories Inlet & Outlet Flange J A I.D. E DIA. D DIA. C B.C. B O.D. (G).44 DIA. HOLES (SEE NOTE ) DIMENSIONS (IN.) A B C D E G H J NOTE: R33865A Holes will not be drilled unless customer specifies. If drilled per std. dims shown, holes will be on centerline unless otherwise specified. Custom hole patterns available at additional charge. 01. Discharge flanges not available on downblast discharge configurations. Slide Gate Damper A + 2" K D C J H OPEn CLOSED B O.D. FLAnGE, FILTER OR GUARD CAn BE MOUnTED OvER THIS O.D. G A I.D. F E NOTE: 01. Slide Damper Gate not available on downblast or bottom angular down discharge positions. DIMENSIONS (IN.) A B C D E DIMENSIONS (IN.) F G H J K R33866 Aerovent Bulletin

14 Dimensional Data Belt Drive Arrangements 1 or 9 CA 14 ALSO AVAILABLE WITH 6 AND 8 INLETS CA 15 AND CA 18 ALSO AVAILABLE WITH 6 AND 10 INLETS ALL MODELS, DISCHARGE FLANGE NOT AVAILABLE FOR DOWN BLAST POSITION. NOTES: 01. CW SHOWN, CCW SIMILAR BUT OPPOSITE 02. SEE R33865 FOR OPTIONAL INLET FLANGE AND OUTLET FLANGE DIMENSIONS. **03. NOMINAL INLET & OUTLET DIMENSIONS 04. ARR.1 LESS MOTOR ARR.9 WITH MOTOR 05. STANDARD MOTOR IS ON RIGHT (AS SHOWN) REGARDLESS OF ROTATION. LEFT SIDE OPTIONAL HOUSING A** B C** DIMENSIONS (IN.) D G H HA HC HE HG CA CA CA CA CA CA CA HOUSING DIMENSIONS (IN.) J K L M P Q SE SD KS FR CA x T CA x T CA x T CA x T CA x T CA x T CA x T R33841D 14 Aerovent Bulletin 916

15 Typical Specifications Type CA/CABD Furnish and install Model CA/CABD Cast Aluminum Pressure Blowers, as manufactured by Aerovent, Minneapolis, Minnesota. Fans shall be of the size and arrangement as indicated in the fan schedule. HOUSINGS All housings shall be heavy duty cast aluminum construction. All units shall be built with an adjustable discharge housing which can be field rotated to any of the eight standard positions. WHEELS The wheel shall be of the radial bladed backplate or backward curved design, and shall be cast aluminum construction. Wheels shall be suitable for exhaust purposes where low volume and high pressure applications exist. BEARINGS Bearings on belt driven units shall be selected to have a minimum average life of 200,000 hours (L-10 minimum life of 40,000 hours) based on AFBMA rating designations. The bearings shall be pillow block type, heavy duty, anti-friction, self-aligning ball bearings. SHAFTS Fan shafts on belt drive units shall be per AISI 1040 or 1045 hot rolled steel, accurately turned, ground, polished, and ring-gauged for accuracy. Shafts shall be sized so that the first critical speed will be at least 1.40 times the maximum operating speed. MOTORS Fan motors shall be foot-mounted or C-Face NEMA Design B, standard industrial, continuous duty, ball bearing, variable torque type suitable for operation on voltage, phase and hertz, as listed in the fan schedule. Motor bearings shall have a minimum L-10 life, as defined by AFBMA, of at least 40,000 hours (200,000 hours average life). For arrangement 4, size 8-12 blower motors must be C-Face only with feet. For arrangment 4 size 15 & 18 minimum motor frame is 182T. BALANCING Prior to shipment all fans shall be completely assembled and test run as a unit at the operating speed. Final balance of the completed fan assembly shall be taken by electronic equipment. Records of the vibration readings in the axial, vertical, and horizontal planes shall be maintained and a written copy of this record shall be available upon request. SUBMITTALS Submittals for approval of equipment shall include copies of outline drawings and pressure-volume performance curves showing point of operation. ACCESSORIES The fans shall be supplied with the following optional accessories: Slide Gate Damper (Inlet or Outlet) OSHA Belt Guard (Arr. 1 or 9) Drain With Plug OSHA Shaft and Bearing Guard (Arr. 1 or 9) Flanged Inlet (Drilling Optional) Floor Mount Isolators, RIS Flanged Outlet (Drilling Optional) Floor Mount Isolators, Spring Inlet or Outlet Guard Teflon Shaft Seal Inlet Filter Weather Hood (Inlet or Outlet) Inlet Silencer M CE Mark Fan Weights Without Motor ARRANGEMENT Size 8 Size 9 Size 10 Size 12 Size 14 Size 15 Size HI and Motor Weights FRAME T 145T 182T 184T ODP TEFC Aerovent Bulletin

16 Quality Air Handling Equipment AXIAL FLOW Tubeaxial Panel Fan Mancooler Ring Fan Tubeaxial Adjustable Pitch VANEAXIAL Type VT Type W Adjustable Pitch Type VTF Fiberglass Type B Higher Pressure Axico Anti-Stall CENTRIFUGAL Industrial Exhaust CB / CBA Series 14 High Pressure Centaxial Pressure Blower ROOF VENTILATOR Upblast Propeller Upblast Axial Tu-WAY Fiberglass PRV Centrifugal AIR HEATER Gas-Fired Air Make-Up Steam Air Make-Up Door Air Heater WARRANTY Aerovent equipment is guaranteed to deliver its rated output, if properly installed and operated under normal conditions. Aerovent will correct by repair, replacement, or issuance of credit at our option, F.O.B. our plant, defects in material or workmanship which may develop under normal and proper use within eighteen (18) months after date of shipment from our factory, if purchaser gives us notice within ten (10) days of discovering such defects. The correction of these defects by repair, replacement, or issuance of credit shall constitute fulfillment of all obligation to purchaser. (NOTE: We will not assume expense or liability for repairs made outside our factory without prior written consent.) TM QBF11/08