Defining Innovation. turbo pressure blowers. Twin City Bulletin 1200

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1 Defining Innovation. turbo pressure blowers TYPE TBA TBR 1 Twin City Bulletin BULLETIN -A May 11

2 Type TBA/TBR Turbo Pressure Blowers Type TBA and TBR fans from Twin City Fan & Blower are constant pressure, variable volume blowers. Turbo pressure blowers are generally used in applications for relatively low volumes and high pressures. They are used primarily for handling air, gas, and fumes relatively free of dust and materials. Twin City Fan & Blower s TBA and TBR turbo blowers provide uniform pressure through the operating range. Stable operation can be maintained from free delivery to shutoff by throttling at the discharge. The design volume of a particular fan can be varied by selecting one of the various wheel options that will fit within the housing. Turbo blowers are most often sold as Arrangement #4 direct connected packages. Typical Applications Glass blowing Air compression Furnace blowers Chemical processing Chip blowing Design Features Drying applications Combustion air Cooling Gas boosting Process systems Designed for continuous duty in high pressure applications Stable operation from free delivery to shutoff when dampered at the fan discharge with blast gate Uniform pressures throughout the operating range Compact, efficient low-cost arrangement Type TBA Type TBA Wheel: air handling type with backward inclined blades for high-efficiency Capable of handling relatively high volumes and pressures Volumes from 300 CFM to 17,000 CFM Pressures from 6" SP to 70" SP Type TBR Wheel: radial bladed with backplate and shroud for low volumes and high pressure Volumes from 0 CFM to,000 CFM Pressures from 6" SP to 0" SP Twin City Fan & Blower also offers the Type TBN Turbo Pressure Blower. TBN blowers feature a high efficiency wheel design and offer multiple outlet sizes and wheel diameters to allow the most efficient selections across a wide range of operating points. They are available in direct drive and belt driven arrangements and offer an aluminum wheel (TBNA) as standard. For high temperatures or fume handling applications steel or stainless steel wheels (TBNS) are also available. Capabilities: Static pressures to 57" w.g., volumes to cfm, high temperature applications to 0 F. Refer to Bulletin for Type TBN Turbo Pressure Blowers. Type TBN 11 Twin City Fan & Blower. All rights reserved throughout the world. Bulletin illustrations cover the general appearance of Twin City Fan & Blower products at the time of publication and we reserve the right to make changes in design and construction at any time without notice. 2 Twin City Bulletin

3 Construction Features Wheel Construction All wheels are made with care to insure maximum strength and reliability. Wheels have a self-centering, all steel taper-lock bushing. Lock screw holes are provided for positive convenient wheel removal without special tools. Wheels are statically and dynamically balanced on the most modern electronic equipment. Every blower unit is given a final running mechanical test and trim balance before shipment. TBA (Turbo Pressure Air Handling Blower) The turbo air handling wheel is a more efficient type of wheel and is used for relatively high volumes of air. The wheel is constructed with heavy-gauge, backwardly inclined blades welded to a spun cone and heavy-gauge backplate. The backplate uses a taperlock hub for easy wheel removal and self-centering reinstallation. The TBA wheel is generally suitable for clean air applications. TBR (Turbo Pressure Radial Blade Blower) The turbo radial bladed wheel is designed for lower air volume at high pressures. The radial blades provide stable airflow over a wide range of airflows. The all-welded wheel uses a taperlock hub for easy removal and self-centering reinstallation. The TBR wheel is generally suitable for clean air applications. TBA Turbo Air Handling Wheel TBR Turbo Radial Bladed Wheel Housing Construction The turbo blower housing is constructed of continuously welded steel with reinforcement as required to maintain shape and prevent vibration at operating pressures. The housing design provides for wheel removal on the inlet side. The turbo blower also features a solidly welded steel motor pedestal with heavy plate and angle bracing for positive alignment and smooth operation. 3 Twin City Bulletin

4 Accessories Shaft Seal Shaft seals are mounted on the drive side of the blower housing. They consist of a ceramic felt element in compression to minimize air leakage. However, they are not of the gas-tight design. Flanged Inlet The flanged inlet enables attachment of rigid pipe connections on the blower inlet. The flange has a drilling pattern to match 5# ASA pipe flange. The thickness of the flange is not according to ASA standards. Outlet Tube Adapter With Rubber Connector This consists of a 4" long steel collar and flange which bolts to the blower discharge. A 6" long, 2-ply molded rubber slip-type connector with two hose clamps connects the adapter to the pipe line and helps to isolate vibration and noise transmission to the rest of the system. The connector is rated for pressures up to 5 psi and F. Outlet Blast Gate This wafer type manual leveroperated butterfly valve is used to adjust air delivery and prevent motor overload. Reducing the flow will also reduce the power requirement and prevent motor overload. On Type TBR fans, optional round outlet transitions can be provided to allow direct mounting of the blast gate to the outlet flange. The valve has a bolt hole pattern to match 5# ASA pipe standard. Electric or pneumatic automatic actuators are available as an option upon request. Note: This valve configuration can be utilized as an inlet air control when used with and matched to the correct size blower flanged inlet. Inlet Filter Turbo blower wheels are designed for handling clean air only. An inlet filter is recommended when a turbo blower is installed in a dustladen atmosphere to help keep the wheel clean and free of clogging, loading and erosion. The filter media is of the washable type and cleaned with either detergent or solvent. Filters are sized for a maximum pressure drop of 1" SP. The filter assembly includes a mounting flange drilled to match 5# ASA pattern (thickness of flange is manufacturer standard). The turbo blower is furnished with a flanged inlet for mounting the filter assembly. Inlet & Outlet Silencers For applications requiring reduced noise levels, silencers can be provided. Silencers are aerodynamically and acoustically designed to significantly reduce noise emanating from the blower inlet or outlet while adding only minor resistance to the airflow (maximum pressure drop of 1" H2O SP). These silencers are designed for effective sound attenuation in the 63 to,000 Hz frequency range. The silencer is fabricated of a steel outer shell and a perforated inner shell. Silencers include mounting flanges and the turbo blower must have a flanged connection. The flange has a drilling pattern to match 5# ASA flange (thickness is manufacturer standard). Always add a shaft seal when quoting silencer to prevent noise emanating through the gap around the shaft. Inlet Filter/Silencer Combination Designed to handle both a dirty atmosphere and noise. The filter/silencer is sized for 1 1 2" SP pressure drop. The filter/silencer assembly normally comes with a flange that has a 5# ASA drilling pattern (thickness is manufacturer standard). Fan must be ordered with flanged inlet when ordering filter/ silencer unit. 4 Twin City Bulletin

5 Drive Arrangements Arrangement 4 Arrangement 4 is the standard arrangement, with the wheel mounted directly on the motor shaft. The fan performance is dependent upon the RPM of the motor, which is usually a 30 RPM motor. This drive arrangement is the most compact and has minimum maintenance and service requirements. Standard Arrangement 4 fans are suitable to F operating temperature. Arrangement Arrangement is a direct-connect unit, similar to Arrangement 4. The wheel is mounted on a separate fan shaft and is mounted to the fan base with pillow block bearings (minimum L-,000 hours). The fan shaft is connected to the motor shaft with a flexible coupling. Arrangement blowers offer the ability to remove the motor for service without disturbing the fan assembly. Arrangement units are limited to 300 F. For special arrangements and higher temperature requirements, please consult the factory. V-Belt Drive Arrangements Twin City Fan & Blower s turbo blower has a wide performance range available with direct drive models which should be used whenever possible. All V-belt drive applications should be reviewed by the factory. Engineering Data Type TBA Bare Fan Weights* and Data SIZE BARE FAN NOMINAL NOMINAL WR2 WT. (LBS.) WHEEL WHEEL WT. (LB-FT2) IN ARR. 4 DIA. (IN.) (LBS.) Arrangement 4 Arrangement Type TBR Bare Fan Weights* and Data SIZE BARE FAN NOMINAL NOMINAL WR2 WT. (LBS.) WHEEL WHEEL WT. (LB-FT2) IN ARR. 4 DIA. (IN.) (LBS.) R R R R R R R R R R R R R R *Fan Weight Only Arr. 4 does not include motor. 5 Twin City Bulletin

6 Fan Selection Use the TBR/TBA selection chart below (Figure 1) with desired CFM and static pressure to determine if TBR, TBA, or both can give acceptable selections. Select a fan based on efficiency, first cost and operating point on the fan curve. From the performance tables, select a fan based on CFM and SP (at standard density of lb/ft 3 ) closest to the value specified. When specified performance is at a density different than standard, it must be converted to the equivalent standard conditions before entering the performance tables. Review the fan curve for your selection. Attempt to offer a fan with higher efficiency wherever possible. Example 1 Given: CFM, 35" SP Type TBR R23Q shows.9 BHP, use 15 HP motor Type TBR R25N shows 17.0 BHP, use 15 HP with 1.15 S.F. or HP motor R23Q is more efficient and should be selected unless operating point of R25N is required by the customer. Example 2 Given: 00 CFM, " SP Type TBR R29Q shows 490 CFM and 65.6 BHP Type TBA P5 shows CFM and 47.7 BHP Both selections are usable. The TBA is a better choice based on its higher efficiency. The performance curve for each fan shows the relationship of CFM versus SP and also denotes recommended motor HP. Referring to the curve for Type TBR R-33: CFM SP BHP Motor Selection HP motor (1.0 or 1.15 SF) HP with 1.15 SF or 5 HP HP with 1.15 SF or 5 HP It is normal to use turbo blowers with motors operating into the service factor. Density Ratios For Inlet Suction Conditions If inlet pressure is suction or negative, static pressure required must be corrected by the inlet density ratio. Example: Operating conditions 70 F at sea level. System resistance at fan inlet is ". Density ratio for correcting inlet air density is as follows: (7 ) 7 = Equivalent static pressure to be used for fan selection from standard tables: = 44.36" Actual air density at inlet = x = lb/ft 3 Operation at Other RPMs or Variation of Fan Speed CFM varies with fan speed. Static pressure varies with square of fan speed. Brake horsepower varies with cube of fan speed. Example: Type TBA 17P7 delivers CFM at " at 30 RPM and 2 BHP. At 2900 RPM ( Hz speed): CFM = ( ) x = 49 SP = ( ) 2 x = 34. BHP = ( ) 3 x 2 = 1.6 The above formula can be used to select fans for Hz operation as well as for V-belt drive applications. Figure 1. TBR/TBA Selection Chart STATIC PRESSURE (IN. WG) TBR TBR OR TBA TBA BRAKE HORSEPOWER CFM (in 00s) 0 6 Twin City Bulletin

7 Selection Charts TBA Static Pressure = 6 706M M S P M S M P M S S S P S P P M M M S S S P S M M S S M Static Pressure = 7 706M M M S P S M P S M S S P S P P M M M S S S P P M S M M P S S S P M M7 3.0 S S M Static Pressure = 706S S P M S S P M S P S P M P M M S S S P M P Static Pressure = 9M S M P S S S P S P M M M S S S M P M S Static Pressure = 9 706S M P M P S S P M P P M S M S S P M M P S M P S S S P S P7 3.5 M M P M S S S P S M P M M S S M S Static Pressure = 706P P S S P P M P S M S S M M P P S M P S S S P S Static Pressure = M P7.3 16M P M S S S P S M M P P M S S M S M P M M S S M Static Pressure = 11 06S S P M S P S M M S M P P S M S P S S P S M M P P M S S S P M S M P P M S S M S P M M M M P S S S S M M S M Static Pressure = 06S M P P M M S M P S Static Pressure = 906P M S P S S P S M M P P M S S S P M S M P P M S S M S P M M M M S P M S S P S S S S M M M P S M P Static Pressure = 13 06P S M P S P M S S P S P M S M P P M S S S P M S M P M P S S M S P M M M M S P M S S P Static Pressure = 13 P M S S P S S M S M M P S M M S M M P S M P Static Pressure = 906S M P S P S M S P S M S P M P P M S S S M P S M3 6.0 P M P S S M S M M P M M S P M S S P P M S S P S S M P S M M P P S M M P S M M S M P S M P S Twin City Bulletin

8 Selection Charts TBA Static Pressure = S P M M P S S M P P M P S S S M P M S P M P S S M S M M P M M S P M S S P P M S S P S S M P S M M P P P S S M M P S M M S M S S P S M P S P Static Pressure = 906P P S M S5.0 06P P M S P S7.6 11M S P M S P M S P S M Static Pressure = S M M P M M S P M S S P P S M S S P S M P M S M P P S P S M M S P M M S5 99. M S S P P P S S S M P M S P M Static Pressure = P S M S P P S M P S M S M P S P M S P S M S M M M P M S P M S S P P S M S S P S M Static Pressure = P M S M P P S P S M P M S P M M S M S S P P P P S S S M P M S M P M Static Pressure = 1 906P S M S S P P S M M P S M P S5 33. P M S P S M M S M M P M S P M S S S P P M S S P S M P M M S P P S P S M P M S M P M S Static Pressure = 1 M S S P P P P S S S P M P M S M P S M S Static Pressure = 19 06S P M P S M S P P M S S P M M M S M P M S P M S S S P P M S S P S M M P M S P P S P S M M P S M P M S M S S P P P P S S S P M P P M S M P S M S Static Pressure = 19 17P Static Pressure = 06P P S M S P S P M S P M M M S M P M S P M S S S P P M S S M S P M P M S P P S P S M M P S M P M S M S S P P P P S S S P M P P M S M P P S M S P Static Pressure = 21 06P M S S P S P M S P M M M S M M P Twin City Bulletin

9 Selection Charts TBA Static Pressure = 21 S P M S S S S P M P S M S P M M P S P P S P S M M S P M P M S M S S P P P P S S S P M P P M S M P P S M S S P Static Pressure = 22 16S S S P3 96. P M P M M S M M P S P M S S S S P M P S M M S P M P S P P S P M S Static Pressure = 22 1M S M P P M S M S S P P P P S S S P M P5 6.0 P M S M P P S M S S P Static Pressure = 23 16S P P M M S M M P S P S M S S S P M P S M M S P M P S P P S M P S M S M P P M M S S S P P P P S S S P M P P M S M P P S M Static Pressure = S P S P Static Pressure = 16P P M M S M M S P P S M S S S P M M M P S S P M P S P P S M S P M S M P P M M S S S P P P P S S S P M P P M M S P P S M S P S P Static Pressure = M P M S M M S P S P S M S S M P M M P S S P Static Pressure = 25 1M P S P P S M S P M S M P P M M S S S P P P S P S S P M P P M M S P P S M S P S P Static Pressure = M P S M S M S P S P M M S S M M P P S S P M P S P P M S S M P S M M M P P S S S P P P S P S S M P P M Static Pressure = 26 P M S P S P M S P S P Static Pressure = M S P P M S S M M P S P S P M S P P M P S S M P S M M M P P S S S P P P S P S S M P P M P M S P S P M S P S P Static Pressure = S P M S M S M P S P S P M S P P M P M S S P M S Twin City Bulletin

10 Selection Charts TBA Static Pressure = 16M M P P S S S P P P S P S S M P P M P M S P S P M S P S P Static Pressure = 29 P M S M S M P S P S P M S P P M M S3 54. P S M P S M M P P S S S P P P S P S S M P P M P M S S P P M S P S P Static Pressure = 30 M S S M P S S P M Static Pressure = P S P P M M M S P S P S M M P S P S S P P P S P S S M P M P P M S S P P M S P S P Static Pressure = S M P S S M P P M P7 4.5 S M M P S S P P S M M P S P S S P P P S P S M S P M P P M S S P P M S P S P Static Pressure = P S Static Pressure = 130S P P P S M M S P S P P S M M P S P S S P P P M S S P S P M P P M S S P P M S P S P Static Pressure = P P M S M S P S S P P M M P S P S S P M P P S S P S P M P P M S S P P M S P S P Static Pressure = P P M M S S S P Static Pressure = P S P M M P S P S P S M P P S S S P P M P P M S S P P M S P S P Static Pressure = P P M S S P P S M P M P S P M S P S P P S S S P P M P P M S S P P M S P S P Static Pressure = 36 S M P P S M P P S P S P S P P S S S P P Static Pressure = M P P M S S P P M S P S P Static Pressure = P P S P P S P S P S S P P S S P P M P P M S S P P M S P S P Static Pressure = P P P P S S P P S S P P S S P M P5 2.0 P P M S S P M P S P S P Static Pressure = 39 P P P S P S S P S P S P M P P P Twin City Bulletin

11 Selection Charts TBA Static Pressure = M S S M P P S P S P Static Pressure = P P S P S S P S S P P M P P P M S S M P P S Static Pressure = 1706P S P Static Pressure = 42 16S P P S S P P M P P P M S M S P P S P S P Static Pressure = 44 P P S P P M Static Pressure = 44 P P M P S M S P P S P S P Static Pressure = 46 16P P M S P P M S P P S P S P Static Pressure = 4 1P P S Static Pressure = 4 15P P S P S P Static Pressure = 1P P S P P S P S P Static Pressure = 52 16P P S S P P S P Static Pressure = S S P P S P Static Pressure = S P P S P Static Pressure = S P S P P Static Pressure = 1706P S P P Static Pressure = P P Static Pressure = P P Static Pressure = P P Static Pressure = P P Twin City Bulletin

12 Selection Charts TBR Static Pressure = 6 R11Q R11V R11X R11W Static Pressure = 7 R11Q R11V R11X R11W R11Y RQ RV RX Static Pressure = R11Q R11V R11X R13M R11W R11Y RQ RV RX RW R13Q RY R13V Static Pressure = 9 R11V R11X R11W R13M R13N R11Y RQ RV RX RW R13Q RY R13V R13X R13W RQ RV RX Static Pressure = R11W R13M R11Y RQ R13N RM R13P RV RN RX RW R13Q RY R13V R13X R13W RQ R13Y 6 2. RV RX RW R15Q RY Static Pressure = 11 R13M R13N RV RM R13P 0 1. RX RN R13Q RW RP R15M R15N RY 1.36 R13V R13X R13W RQ R13Y RV Static Pressure = 11 RX RW R15Q RY 3.61 R15V R15X RQ R15W Static Pressure = R13M R13N RX RM R13P R13Q RN 6 1. RW R15M RP RY 3 1. R13V R15N R13X RM R13W RQ RN R13Y RV 2.37 RX RW R15Q RY R15V R15X 4. RQ R15W R15Y 5.23 RV RX Static Pressure = 13 R13N RM RW R13P RN RY R13V R15M RP R15N R13X R15P R13W RQ RM R13Y RN 2.74 RV RX RW R15Q RY R15V R15X RQ R15W RV R15Y RX 5.5 RW R1Q Static Pressure = R13P RN R15M R13X RP R15N RQ R13W R15P 1 2. RM R13Y RN RV RP RX R15Q RW RY Static Pressure = R15V R15X RQ 3.7 R15W RV R15Y RX RW RY R1Q R1V Static Pressure = 15 R13P RN R15M RP R13W R15N R15P R13Y RM RV RN RX 2.04 RP R15Q RW RY R15V 3.06 R1M R15X RQ R1N R15W 4.01 RV R15Y RX 5.41 RW RY R1Q R1V R1X.5 Static Pressure = RP R15N R13Y 5 1. R15P RM RX RN R15Q RW RP RY R15V R1L R1M RQ R15X R1N R15W RV R15Y RX RW RY R1Q R1V R1X R1W R1Y 177. R21Q Static Pressure = 17 RP R15N RM R15P RN RW RP R15V RY R1L RQ R1M R15X R15W R1N RV R1P R15Y Static Pressure = 17 RX RW RY R1Q R1V R1X R1W R1Y R21Q Static Pressure = 1 RM R15P RN R15V RY RP RQ R15X R1L R1M R15W R1N RV R15Y R1P RX R21M RW RY R1Q R1V R1X R1W R1Y R21Q R21V R21X Static Pressure = 19 R15P RN RP R15X R1L R1M R15W RV R1N R15Y R1P RX R21L RW R21M R21N RY R1Q R1V R1X R1W R1Y 4.2 R21Q R21V R21X 91. R21W R23Q Static Pressure = RN RP R15W R1L R1M RV R1N R15Y RX R1P RW R21L R21M 6.53 RY R21N R1Q R1V R1X 9. R1W 0.2 R1Y 46.0 R21Q R21V R21X 49.5 R21W R21Y R23Q Static Pressure = 21 RP R1M R1L R15Y R1N RX RW R1P R21L R21M RY R21N R1Q R21P R1V R23M R1X R1W R1Y R21Q R21V R21X 05.1 R21W R21Y R23Q R23V R23X Static Pressure = 22 RP R1M R1L R1N RW R1P R21L R21M RY R1Q R21N R21P R1V R23L 46.1 R1X R23M 13.0 R1W R23N R21Q R1Y R21V R21X R21W R21Y R23Q R23V R23X R23W R25Q Static Pressure = 23 R1M R1L R1N RW R1P RY R21L R21M R1Q R21N R21P R1V R23L 11. R1X R23M R1W R23N R21Q 95.6 R1Y R21V R21X R21W 17.0 R21Y R23Q R23V R23X R23W R25Q Static Pressure = R1L R1N RY R1P Twin City Bulletin

13 Selection Charts TBR Static Pressure = R21L R21M R21N R21P R1V R1X R23L R23M R1W R23N R21Q.1 R1Y 63.6 R23P R25M R21V R21X 157. R21W R21Y R23Q 77.9 R23V R23X R23W R25Q R23Y R25V Static Pressure = 25 R1N R1P R21L R21M R21N R1V R21P R1X R23L R1W R23M R21Q R23N R1Y 17.2 R23P 15.3 R21V.6 R25M 17.4 R21X 2.3 R21W 19.2 R21Y R23Q.4 R23V 27. R23X R23W R25Q 37.3 R23Y R25V R25X Static Pressure = 26 R1P R21M R21L R1V R21N R21P R1X R23L R1W R23M R21Q 9.07 R23N R1Y R23P R25L R21V R25M R21X R25N R21W R21Y R23Q R23V R23X R23W R25Q 31. R23Y R25V R25X R25W 47.0 R27Q Static Pressure = 27 R1P R21M R21L R21N R1X Static Pressure = 27 R21P 7. R1W R23L 3.7 R23M R21Q.43 R1Y R23N 96.5 R23P R21V R25L R25M 15. R21X R25N R21W R21Y R23Q R23V R23X R23W R25Q R23Y R25V R25X R25W R27Q Static Pressure = R1P R21M R21L R21N R21P R1W R21Q R23L 46.4 R23M 93.2 R1Y R23N.2 R21V 11.1 R23P R25L R25M 15.4 R21X 04. R25N R21W R25P R21Y R23Q R27M 25.0 R23V R23X R23W R25Q R23Y R25V R25X R25W R27Q R25Y R27V Static Pressure = 29 R21L R21N R1W 5.99 R21P R21Q R23L 07.1 R23M R1Y R23N R21V 13.5 R23P R25L 47.7 R25M 7.0 R21X 15.2 R21W 79.3 R25N R21Y R25P R23Q R27L R27M 27.6 R23V R27N 27.2 R23X R23W 51.4 R25Q R23Y R25V R25X R25W R27Q R25Y R27V R27X Static Pressure = 30 R21L R21N R21P R1Y R23L R23M R23N R21V R23P R25L.4 R21X R25M R21W 13. R25N R21Y R25P R23Q R27L R27M R23V R27N R23X R23W R25Q R23Y 37.7 R25V R25X R25W R27Q R25Y R27V R27X R29Q Static Pressure = 31 R21N R21P R1Y R23L R23M R21V.97 R23N R21X R23P R25L R25M R21W R25N R21Y 5.1 R25P R23Q R27L R27M R23V R27N R23X 27. R23W R25Q R23Y R25V R25X R25W R27Q R25Y R27V R27X R27W R29Q Static Pressure = R21P R23L R23M 9. R21V R23N 12.9 R21X R23P R25L R25M R21W 54.6 R25N R21Y R25P R23Q R27L R27M R23V R27N R23X R23W R27P R29M R25Q R23Y R25V Static Pressure = R25X R25W R27Q R25Y R27V R27X R27W R29Q R29V Static Pressure = 33 R21P R23M R23L R23N 57.5 R21X 3.91 R23P R25L R25M 13.5 R21W R25N R21Y 51. R23Q R25P R27L R27M R23V R27N R23X R23W R27P R29M R25Q R23Y R25V R25X R25W R27Q R25Y 61.5 R27V R27X 465. R27W R27Y R29Q R29V Static Pressure = 34 R21P R23M R23L 767. R23N 07.1 R23P R25L 59.9 R21W R25M 7.1 R25N R21Y R23Q.1 R25P R27L R27M R23V R27N R23X R23W R29L R27P R25Q R29M R23Y R29N R25V R25X R25W R27Q R25Y 49.9 R27V R27X R27W R27Y R29Q R29V R29X R31Q Static Pressure = 35 R21P R23M R23L R23N R21W 11.4 R25L.6 R23P R25M R23Q 55.9 Static Pressure = 35 R21Y R25N R25P R27L R27M R23V R27N R23X R23W R29L R25Q R27P R29M R23Y 30.2 R29N R25V R25X R25W R27Q R25Y R27V R27X R27W R27Y R29Q R29V R29X R29W R31Q Static Pressure = 36 R23L 6 7. R23N R21W R25L R23P R25M R23Q R21Y R25N 41.7 R25P R27L R23V R27M R23X R27N R23W 17.3 R25Q 4. R29L R27P R29M R23Y R29N R25V 30.7 R31M R25X R25W R27Q R25Y R27V R27X R27W R27Y R29Q R29V R29X R29W R31Q Static Pressure = 37 R23N R25M R25L R23P R21Y R25N R25P R23V R27L. R27M R23X.4 R27N R23W R25Q R29L R27P R29M R23Y R29N R25V R31M R29P R25X R25W R27Q Twin City Bulletin

14 Selection Charts TBR Static Pressure = 37 R25Y R27V R27X R27W R27Y R29Q R29V R29X R29W R31Q R31V Static Pressure = 3 R23N R21Y R25M 53.1 R25L R23P 3.0 R25N R25P.9 R23V 59.0 R27L 6.3 R27M R23X 19.4 R27N R23W R25Q R29L R27P R29M R23Y R29N R25V R25X R31M R29P 53.5 R25W R27Q R31N R25Y R27V 41.9 R27X R27W R27Y R29Q R29V R29X R29W R31Q R29Y R31V R31X R33Q Static Pressure = 39 R25M R25L. R23P R25N R23V 5.5 R25P 02.5 R27L R27M R23X 1.3 R27N R25Q R23W R29L R27P R29M R23Y R25V R29N R31L R25X R31M R29P R25W R27Q R31N R25Y R27V R27X R27W R27Y 73.3 R29Q R29V R29X R29W R31Q R29Y R31V R31X R33Q Static Pressure = R25M 5.6 R25L R23P R23V.1 R25N R25P R27L R23X R27M R25Q 09.6 R23W R27N 27.6 R29L R29M R27P R23Y R25V R29N R31L R25X R31M 31.5 R29P R25W R27Q R31N R25Y R27V R27X R27W R33M R27Y R29Q R29V R29X R29W R31Q R29Y R31V R31X R31W R33Q Static Pressure = 42 R23P R25L R25N R23X 93.9 R25P R27L R25Q R27M R23W R27N R29L R23Y 23.7 R29M R27P R25V 27.7 R29N R25X 62.3 R31L R31M R29P R25W R27Q R31N R25Y R27V R31P R27X R27W R33M R29Q R27Y R29V R29X R29W R31Q R29Y R31V R31X R31W R33Q R33V Static Pressure = 44 R25N R25P R23W 15.4 R27L R27M R27N R23Y R29L R25V Static Pressure = 44 R29M R27P R29N R25X R31L R27Q R25W R31M R29P R31N R25Y R27V R31P R27X R33L R27W R33M R29Q R27Y R33N R29V R29X R29W R31Q R29Y R31V R31X R31W R33Q R31Y R33V R33X Static Pressure = 46 R25P R27M R27L R23Y R27N R25V R29L R29M R27P 22.6 R25X R29N R27Q R25W R31L R31M R29P R31N R25Y R27V R31P R27X R33L R27W R33M R29Q R27Y R33N R29V 76.2 R29X R29W 94. R31Q R29Y R31V R31X R33Q R31W R31Y R33V R33X R33W Static Pressure = 4 R25P R27M R27L R27N R29L 03.0 R29M R25X 67.0 R27P R27Q R29N R25W R31L R31M R29P R25Y R31N R27V R31P Static Pressure = 4 R27X R27W R33L R33M R29Q R27Y R33N R29V R33P R29X R31Q R29W R29Y R31V R31X R33Q R31W R31Y R33V R33X R33W R33Y Static Pressure = R25P R27L 17.9 R27N R27Q R29L R29M R27P 30.4 R25W R29N R31L R31M R29P R25Y R27V R31N R27X R31P R27W R33L R29Q R33M R27Y R33N R29V R33P R29X R31Q R29W R29Y R31V R31X R33Q R31W R31Y R33V R33X R33W R33Y Static Pressure = 52 R27N R29M R29L R27P R25W R29N 35.3 R31L R31M R25Y R29P R27V R31N R27X R31P R27W R33L R29Q R33M R27Y R33N R29V R33P R29X R31Q R29W R29Y R31V R31X R33Q R31W R31Y Static Pressure = 52 R33V R33X R33W R33Y Static Pressure = 54 R27N R29M R29L R27P R29N R25Y R27V R31L R31M 41.9 R29P R31N R27X R31P R27W R29Q R33L R33M R27Y 69.0 R33N R29V R33P 75.0 R29X 77.7 R31Q R29W R29Y R31V R31X R33Q R31W R31Y R33V R33X R33W R33Y Static Pressure = 56 R29M R29L R27P R25Y R29N 13.4 R31L R31M R29P R27X R31N 23.2 R27W 46.4 R29Q R31P R33L R33M R27Y R33N R29V R29X R33P R31Q R29W R29Y 1.0 R31V R31X R33Q R31W R31Y R33V R33X R33W R33Y Static Pressure = 5 R29L R27P R29N R31L R31M R27X R29P R31N R29Q R27W R31P R33L R27Y R33M R29V R33N R29X R31Q R33P Twin City Bulletin

15 Selection Charts TBR Static Pressure = 5 R29W 2.5 R31V R29Y R31X R33Q R31W R31Y R33V R33X R33W R33Y Static Pressure = R29L R27P R29N R31M R31L R29P R31N R27W R31P R27Y R33L R33M R29V R33N R29X R31Q R33P R29W R31V R29Y R31X R33Q R31W R33V R31Y R33X R33W R33Y Static Pressure = 62 R29N R31M R31L R29P R27W R31N R31P R27Y R33L R33M R29V R33N R29X R31Q R33P R29W R31V R29Y R31X R33Q R31W Static Pressure = 62 R33V R31Y R33X R33W R33Y Static Pressure = 64 R31M R31L R29P 37.4 R31N R27Y R31P R29V R33L R33M R31Q R29X R33N R29W R33P R31V R29Y R31X R33Q 5.0 R31W R33V R31Y R33X R33W R33Y Static Pressure = 66 R31L R29P R27Y R31N R31P R33L R33M R31Q R29X R33N R29W R33P R31V R29Y R33Q R31X R31W R33V R31Y R33X R33W 6.0 R33Y Static Pressure = 6 R31L 30.4 R29P R31N R31P R33L R33M R29X Static Pressure = 6 R33N R29W R33P R31V R29Y R33Q R31X R31W R33V R31Y R33X R33W R33Y Static Pressure = 70 R29P R31N R31P R33L R33M R33N R29W R33P R31V R29Y R33Q R31X R31W R33V R31Y R33X R33W R33Y Static Pressure = 72 R31P R33M R33L R29W R33N R31V R33P R29Y R33Q R31X R31W R33V R31Y R33X R33W R33Y Static Pressure = 74 R33M R31P 11.1 R33L R29W.2 R33N R31V R29Y R33P R33Q R31X R31W Static Pressure = 74 R33V R31Y R33X R33W R33Y Static Pressure = 76 R33M R31P R33L 23.5 R33N R29Y R33Q R33P 57.9 R31X R31W R33V R31Y R33X R33W R33Y 40.0 Static Pressure = 7 R33L R31P R29Y R33N R31X R33P R31W R33V R31Y R33X R33W R33Y Static Pressure = 0 R33L R31P R33N R33P R31W R33V R31Y R33X R33W R33Y Static Pressure = 2 R33N R33P R31W R33V R31Y R33X R33W R33Y Static Pressure = 4 R33N R33P R31W R33V R31Y R33X R33W R33Y Static Pressure = 6 R33P R33V R31Y R33X R33W R33Y Static Pressure = R33P R31Y R33X R R33Y Static Pressure = 90 R33P R33X R33W R33Y Static Pressure = 92 R33P R33W R33Y Static Pressure = 94 R33P 52.7 R33W R33Y Static Pressure = 96 R33W R33Y Static Pressure = 9 R33Y Static Pressure = 0 R33Y Static Pressure = 2 R33Y Twin City Bulletin

16 Performance Curves TBA TBA 706: P5 P3 S5 S3 M5 M3 TBA 7: P7 S7 M CFM IN S TBA 06: P5 P3 S5 S3 M5 M3 TBA : P7 S7 S5 M TBA 906: P5 P3 S5 S3 M5 M3 TBA 9: P7 S7 S5 M *INDICATES MOTOR OPERATION AT 1.15 SF 4 36 Twin City Bulletin

17 Performance Curves TBA TBA 06: P5 P3 S5 S3 M5 M3 26 TBA : P7 S7 S5 M TBA 16: P5 P3 S5 S3 M5 M3 TBA 11: P7 S7 S5 M TBA : P5 P3 S5 S3 M5 M3 36 TBA : P7 S7 S5 M *INDICATES MOTOR OPERATION AT 1.15 SF 17 Twin City Bulletin

18 Performance Curves TBA 44 TBA 1306: P5 P3 S5 S3 M5 M3 44 TBA 130: P5 P3 S5 S3 M5 M TBA 13: P7 S7 M7 4 TBA : P5 P3 S5 S3 M5 M TBA 1: P5 P3 S5 S3 M5 M3 4 TBA : P7 S7 M CFM IN 00 S *INDICATES MOTOR OPERATION AT 1.15 SF 1 Twin City Bulletin

19 Performance Curves TBA TBA 16: P5 P3 S5 S3 M5 M3 TBA 1: P5 P3 S5 S3 M5 M TBA 15: P7 S7 M7 0 TBA 1706: P5 P3 S5 S3 M5 M CFM IN 00 S CFM IN 00 S 0 TBA 17: P7 S7 M CFM IN 00 S *INDICATES MOTOR OPERATION AT 1.15 SF 19 Twin City Bulletin

20 Performance Curves TBR TBR R11: Y W X V Q TBR R: Y W X V Q CFM IN S CFM IN S 1 TBR R13: P N M 1 TBR R13: Y W X V Q CFM IN S CFM IN S TBR R: P N M TBR R: Y W X V Q CFM IN S CFM IN S *INDICATES MOTOR OPERATION AT 1.15 SF Twin City Bulletin

21 Performance Curves TBR 22 TBR R15: P N M TBR R15: Y W X V Q CFM IN S CFM IN S 26 TBR R: P N M TBR R: Y W X V Q CFM IN S CFM IN S 36 TBR R1: P N L M 36 TBR R1: Y W X V Q CFM IN S *INDICATES MOTOR OPERATION AT 1.15 SF 21 Twin City Bulletin

22 Performance Curves TBR TBR R21: P N L M 44 TBR R21: Y W X V Q CFM IN S TBR R23: P N L M 52 TBR R23: Y W X V Q TBR R25: P N L M TBR R25: Y W X V Q *INDICATES MOTOR OPERATION AT 1.15 SF 22 Twin City Bulletin

23 Performance Curves TBR 70 TBR R27: P N L M 70 TBR R27: Y W X V Q TBR R29: P N L M 90 TBR R29: Y W X V Q TBR R31: P N L M 0 TBR R31: Y W X V Q *INDICATES MOTOR OPERATION AT 1.15 SF 23 Twin City Bulletin

24 Performance Curves TBR 0 TBR R33: P N L M 1 TBR R33: Y W X V Q *INDICATES MOTOR OPERATION AT 1.15 SF Twin City Bulletin

25 DIMENSIONS NOT TO BE USED FOR CONSTRUCTION. CERTIFIED DRAWINGS AVAILABLE UPON REQUEST. Twin City Fan & Blower Minneapolis, Minnesota Twin City Bulletin

26 Twin City Fan & Blower Minneapolis, Minnesota DIMENSIONS NOT TO BE USED FOR CONSTRUCTION. CERTIFIED DRAWINGS AVAILABLE UPON REQUEST. 26 Twin City Bulletin

27 Typical Specifications Type TBA Furnish and install as shown on the plans Type TBA Turbo Pressure Air Handling Blower of the arrangement indicated, as manufactured by Twin City Fan & Blower, Minneapolis, Minnesota. HOUSING Type TBA Turbo Blower housings are to be constructed with frames of continuously welded heavy gauge steel with reinforcement as required to maintain shape and prevent vibration at operating pressures. Turbo blowers feature a solidly welded steel motor pedestal with heavy plate and angle bracing for positive alignment and smooth operation. The housing design provides for wheel removal on the inlet side. The TBA housing is adjustable to 6 discharge positions. Positions BHD and DBD require an extended discharge. An inlet venturi for smooth air entry on non-ducted fans is included. Flanges match the hole pattern and diameters of ASA 5# flanges. Type TBA Turbo Blowers are available in Arrangement 4 and Arrangement. WHEEL TBA wheels with backward-inclined blades are designed for high efficiency air handling at relatively high volume and pressures. Wheels shall be all welded construction from high strength steel. Heavy gauge blades shall be welded to a spun cone and heavy gauge backplate. Wheels shall be precision balanced for trouble-free operation. Hubs shall be taperlock for easy removal and accurate, self-centering reinstallation. Aluminum and stainless steel construction is available. Type TBA Blowers are generally suitable for clean air applications. FAN PERFORMANCE Fan performance shall be tested in accordance with industry accepted test codes, and is guaranteed by Twin City Fan & Blower to deliver rated performance. All blower units shall be run tested and trim balanced prior to shipment. Typical Specifications Type TBR Furnish and install as shown on the plans Type TBR Turbo Pressure Radial Blade Blower of the arrangement indicated, as manufactured by Twin City Fan & Blower, Minneapolis, Minnesota. HOUSING Type TBR Turbo Blower housings are to be constructed with frames of continuously welded heavy gauge steel with reinforcement as required for pulsation-free operation and to maintain shape at operating pressures. Type TBR Blowers shall be constructed with a non-rotatable housing design. An inlet venturi for smooth air entry on non-ducted fans is included. The housing design provides for wheel removal on the inlet side. The turbo blower features a solidly welded steel motor pedestal with heavy plate and angle bracing for positive and smooth operation. Type TBR Turbo Blowers are available in Arrangement 4 and Arrangement and are available in all discharge positions. WHEEL TBR radial wheels are designed for high efficiency air handling at relatively low volume and high pressures. Wheels shall be all welded construction from high strength steel. Heavy gauge blades shall be welded to heavy gauge front and back plates. Wheels shall be precision balanced for trouble-free operation. Hubs shall be taperlock for easy removal and accurate, self-centering reinstallation. Aluminum and stainless steel construction is available. Type TBR Blowers are generally suitable for clean air applications. FAN PERFORMANCE Fan performance shall be tested in accordance with industry accepted test codes, and is guaranteed by Twin City Fan & Blower to deliver rated performance. All blower units shall be run tested and trim balanced prior to shipment. 27 Twin City Bulletin

28 Industrial & Commercial Fans Centrifugal Fans Utility Sets Plenum & Plug Fans Inline Centrifugal Fans Mixed Flow Fans Tubeaxial & Vaneaxial Fans Propeller Wall Fans Propeller Roof Ventilators Centrifugal Roof & Wall Exhausters Ceiling Ventilators Gravity Ventilators Duct Blowers Radial Bladed Fans Radial Tip Fans High Efficiency Industrial Fans Pressure Blowers Laboratory Exhaust Fans Filtered Supply Fans Mancoolers Fiberglass Fans Custom Fans A Twin City Fan Company Twin city fan & blower Trenton Lane N Minneapolis, MN Phone: Fax: MWG/