DB: Duct Blowers / Cabinet Fans

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  • TDB
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  • TDBX
  • SDB
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  • Standard Construction Features
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DB

DB

TDB

TDB

DBX

DBX

TDBX

TDBX

SDB

SDB

Standard Construction Features

DB Standard Construction Features

Standard Construction Features

DBX,SDB Standard Construction Features

AMCA-Sound & Air Cert. logo

Certifications, vary by model

LOREN COOK COMPANY's DB product line provides maximum performance and durability in a belt drive duct fan. The product line consists of the DB, TDB, DBX, TDBX and SDB. These four products provide AMCA certified performance in a wide variety of applications. Key features of each product are summarized below.

Related Documents

See the Downloads tab for specifications, submittals and FanDrafter files

See also Gemini lockable security unit
See also Cinder Block Fan

  • DB

  • TDB

  • DBX

  • TDBX

  • SDB

  • Downloads

DB

LOREN COOK COMPANY certifies that the DB shown herein is licensed to bear the AMCA Seal. The ratings shown are based on tests and procedures performed in accordance with AMCA Publication 211 and AMCA Publication 311 and comply with the requirements of the AMCA Certified Ratings Program.

Type DB is furnished standard with UL 705 and cUL705 listing (Power Ventilator/ZACT) when furnished with a TEFC motor.

DB 

Forward Curved Wheel
Duct Blower

  • DB utilizes a single DWDI forward curved blower assembly with the motor located in the air stream.
  • DB capacity ranges from 400 CFM up to 9900 CFM, with static pressures from 0 to 2 inches w.g.

Description: Fan shall be duct mounted, belt driven centrifugal cabinet fan.

Certifications: Fan shall be manufactured at an ISO 9001 certified facility. Fan shall be listed by Underwriters Laboratories (UL 705) and UL listed for Canada (cUL 705). Fan shall bear the AMCA Certified Ratings Seal for Sound and Air Performance.

Construction: The fan shall be of bolted construction utilizing corrosion resistant fasteners. Housing shall be minimum 18 gauge galvanized steel with two access doors and integral duct collars. Internal blower and motor assembly shall be mounted on rubber vibration isolators. Hanging brackets shall be provided for horizontal installation. Unit shall bear an engraved aluminum nameplate. Nameplate shall indicate design CFM, static pressure and maximum fan RPM. Unit shall be shipped in ISTA Certified Transit Tested Packaging.

Wheel: Wheel shall be DWDI centrifugal forward curved type, constructed of painted steel. Wheel shall be balanced in accordance with AMCA Standard 204-05, Balance Quality and Vibration Levels for Fans.

Motor: Motor shall be heavy duty TEFC type with permanently lubricated sealed ball bearings and furnished at the specified voltage and phase.

Bearings: Bearings shall be permanently lubricated, sealed ball type selected for a minimum L50 life in excess of 200,000 hours at maximum cataloged operating speed.

Belts and Drives: Belts shall be oil and heat resistant, static conducting. Drives shall be precision machined cast iron type, keyed and securely attached to the wheel and motor shafts. Drives shall be sized for 150% of the installed motor horsepower. The variable pitch motor drive shall be factory set to the specified fan RPM.

Product: Fan shall be model DB as manufactured by LOREN COOK COMPANY of Springfield, Missouri.

Dimensions (Inches)

DB dimension drawing

Size A B C D
O.D.
E
O.D.
F G K L
O.D.
M
O.D.
Ship
Wt.
DB-8 18-1/8 15-7/16 23 7-7/8 9-1/4 21  9-5/8 2-5/16 23 13-7/16 16-1/8 53
DB-9 21-1/8 18-1/8 25-3/4 10-5/16 11-7/8 24 11-3/4 2-11/16 26 16-1/8 19-1/8 70
DB-10 22-3/8 20-1/8 28-1/4 11-3/8 13-1/8 26 13-3/8 2-11/16 28 18-1/8 20-3/8 80
DB-13 27-1/8 23-3/16 31-1/4 13-7/16 15-5/8 30 16-1/8 2-11/16 32 21-3/16 25-1/8 108
DB-15 32-1/2 26-15/16 36-1/4 15-7/8 18-5/8 36 19-1/2 2-11/16 38 24-15/16 30-1/2 205
DB-18 41 31-7/8 44-3/4 18-7/8 21-7/8 44 24 2-7/8 46 29-7/8 39 400
TDB

LOREN COOK COMPANY certifies that the TDB shown herein is licensed to bear the AMCA Seal. The ratings shown are based on tests and procedures performed in accordance with AMCA Publication 211 and AMCA Publication 311 and comply with the requirements of the AMCA Certified Ratings
Program.

Type TDB is furnished standard with UL 705 and cUL705 listing (Power Ventilator/ZACT) when furnished with a TEFC motor.

TDB 

Forward Curved Wheel
Twin
Duct Blower

  • TDB utilizes two DWDI forward curved blower assemblies with a common shaft and a single motor located in the air stream.
  • TDB capacity ranges from 800 CFM up to 15,500 CFM, with static pressures from 0 to 2 inches w.g.

Description: Fan shall be duct mounted, belt driven, dual fan, single motor centrifugal cabinet fan.
Certifications - Fan shall be manufactured at an ISO 9001 certified facility. Fan shall be listed by Underwriters Laboratories (UL 705) and UL listed for Canada (cUL 705).

Construction: The fan shall be of bolted construction utilizing corrosion resistant fasteners. Housing shall be minimum 18 gauge galvanized steel with two access doors and integral duct collars. Internal blower and motor assembly shall be mounted on rubber vibration isolators. Hanging brackets shall be provided for horizontal installation. Unit shall bear an engraved aluminum nameplate. Nameplate shall indicate design CFM, static pressure and maximum fan RPM. Unit shall be shipped in ISTA Certified Transit Tested Packaging.

Wheel: Wheels shall be DWDI centrifugal forward curved type, constructed of plated steel. Wheels shall be balanced in accordance with AMCA Standard 204-05, Balance Quality and Vibration Levels for Fans.

Motor: Motor shall be heavy duty TEFC type with permanently lubricated sealed ball bearings and furnished at the specified voltage and phase.
Bearings - Bearings shall be permanently lubricated, sealed ball type selected for a minimum L50 life in excess of 200,000 hours at maximum cataloged operating speed.

Belts and Drives: Belts shall be oil and heat resistant, nonstatic type. Drives shall be precision machined cast iron type, keyed and securely attached to the wheel and motor shafts. Drives shall be sized for 150% of the installed motor horsepower. The variable pitch motor drive shall be factory set to the specified fan RPM.

Product: Fan shall be model TDB as manufactured by LOREN COOK COMPANY of Springfield, Missouri.

Dimensions (Inches)

DB dimension drawing

Size A B C D
O.D.
E
O.D.
F G K L
O.D.
M
O.D.
Max.
H.P.
Ship
Wt.
TDB-8 36-5/8 15-7/16 23 7-7/8 9-1/4 38  9-5/8 2 1/8 9-1/4 13-7/16 16-1/8 1 135
TDB-9 42-5/8 18-1/8 25-3/4 10-5/16 11-7/8 44 11-3/4 2 1/2 9-5/8 16-1/8 19-1/8 2 175
TDB-10 45-1/8 20-1/8 28-1/4 11-3/8 13-1/8 46-1/2 13-3/8 2 1/2 9-5/8 18-1/8 20-3/8 2 225
TDB-13 54-5/8 23-3/16 31-1/4 13-7/16 15-5/8 56 16-1/8 2 1/2 11-7/8 21-3/16 25-1/8 3 350
TDB-15 65-3/8 26-15/16 36-1/4 15-7/8 18-5/8 66-3/4 19-1/2 2 1/2 14-1/4 24-15/16 30-1/2 5 425
TDB-18 82-3/8 31-7/8 44-3/4 18-7/8 21-7/8 83-3/4 24 2 11/16 19-1/2 29-7/8 39 7-1/2 750
DBX

LOREN COOK COMPANY certifies that the DBX shown herein is licensed to bear the AMCA Seal. The ratings shown are based on tests and procedures performed in accordance with AMCA Publication 211 and AMCA Publication 311 and comply with the requirements of the AMCA Certified Ratings Program.

Type DBX is furnished standard with UL 705 and cUL705 listing (Power Ventilator/ZACT) when furnished with a TEFC motor.

DBX 

Forward Curved Wheel
External Belt Drive
Duct Blower

  • DBX utilizes a single DWDI forward curved blower assembly with the motor located out of the air stream.
  • DBX capacity ranges from 400 CFM up to 9,900 CFM, with static pressures from 0 to 2 inches w.g

Description: Fan shall be duct mounted, belt driven centrifugal cabinet fan with external motor mount.

Certifications: Fan shall be manufactured at an ISO 9001 certified facility. Fan shall be listed by Underwriters Laboratories (UL 705) and UL listed for Canada (cUL 705). Fan shall bear the AMCA Certified Ratings Seal for Sound and Air Performance.

Construction: The fan shall be of bolted construction utilizing corrosion resistant fasteners. Housing shall be minimum 18 gauge galvanized steel with two access doors and integral duct collars. Internal blower assembly shall be mounted on rubber vibration isolators. Motor shall be out of the air stream. Hanging brackets shall be provided for horizontal installation. Unit shall bear an engraved aluminum nameplate. Nameplate shall indicate design CFM, static pressure and maximum fan RPM. Unit shall be shipped in ISTA Certified Transit Tested Packaging.

Wheel: Wheel shall be DWDI centrifugal forward curved type, constructed of plated steel. Wheel shall be balanced in accordance with AMCA Standard 204-05, Balance Quality and Vibration Levels for Fans.

Motor: Motor shall be Nema design B with class B insulation rated for continuous duty and furnished at the specified voltage, phase and enclosure.

Bearings: Bearings shall be permanently lubricated, sealed ball type selected for a minimum L50 life in excess of 200,000 hours at maximum cataloged operating speed.

Belts and Drives: Belts shall be oil and heat resistant, nonstatic type. Drives shall be precision machined cast iron type, keyed and securely attached to the wheel and motor shafts. Drives shall be sized for 150% of the installed motor horsepower. The variable pitch motor drive shall be factory set to the specified fan RPM.

Product: Fan shall be model DBX as manufactured by LOREN COOK COMPANY of Springfield, Missouri.

Dimensions (Inches)

DBX dimension drawing

Size A B C D
O.D.
E
O.D.
F G K L
O.D.
M
O.D.
N P R S Ship
Wt.
DBX-8  18-1/8  15-7/16  23  7-7/8   9-1/4  21  9-5/8  2-5/16 23 13-7/16  16-1/8   6-3/8  2-3/8  8-1/4  24-9/16  53
DBX-9  21-1/8  18-1/8  25-3/4  10-5/16 11-7/8 24 11-3/4 2-11/16 26 16-1/8  19-1/8   7-3/16  2-3/8  9-7/8  27-1/4  70
DBX-10  22-3/8  20-1/8  28-1/4  11-3/8 13-1/8  26 13-3/8  2-11/16 28 18-1/8  20-3/8   7-15/16  4 10-7/8 30-1/16  80
DBX-13  27-1/8  23-3/16  31-1/4  13-7/16  15-5/8  30 16-1/8  2-11/16 32 21-3/16  25-1/8   9-1/8  4 12-23/32 35-9/16  108
DBX-15  32-1/2  26-15/16  36-1/4  15-7/8  18-5/8  36 19-1/2  2-11/16 38 24-15/16  30-1/2  10-1/2 4 14-27/32  39-5/16  205
DBX-18  41 31-7/8  44-3/4  18-7/8  21-7/8  44 24 2-7/8 46 29-7/8  39 12-3/8 4 17-9/16  44-1/4  400
TDBX

LOREN COOK COMPANY certifies that the TDBX shown herein is licensed to bear the AMCA Seal. The ratings shown are based on tests and procedures performed in accordance with AMCA Publication 211 and AMCA Publication 311 and comply with the requirements of the AMCA Certified Ratings Program.

Type TDBX is furnished standard with UL 705 and cUL705 listing (Power Ventilator/ZACT) when furnished with a TEFC motor.

TDBX 

Forward Curved Wheel
External Belt Drive
Twin
Duct Blower

  • TDBX utilizes two DWDI forward curved blower assemblies with a common shaft and a single motor located out of the air stream.
  • DBX capacity ranges from 400 CFM up to 9,900 CFM, with static pressures from 0 to 2 inches w.g

Description: Fan shall be duct mounted, belt driven, dual fan, single motor centrifugal cabinet fan, with an external motor mount.

Certifications: Fan shall be manufactured at an ISO 9001 certified facility. Fan shall be listed by Underwriters Laboratories (UL 705) and UL listed for Canada (cUL 705).

Construction: The fan shall be of bolted construction utilizing corrosion resistant fasteners. Housing shall be minimum 18 gauge galvanized steel with two access doors and integral duct collars. Internal blower and motor assembly shall be mounted on rubber vibration isolators. Motor shall be out of the air stream. Hanging brackets shall be provided for horizontal installation. Unit shall bear an engraved aluminum nameplate. Nameplate shall indicate design CFM, static pressure and maximum fan RPM. Unit shall be shipped in ISTA Certified Transit Tested Packaging.

Wheel: Wheels shall be DWDI centrifugal forward curved type, constructed of plated steel. Wheels shall be balanced in accordance with AMCA Standard 204-05, Balance Quality and Vibration Levels for Fans.

Motor: Motor shall be heavy duty TEFC type with permanently lubricated sealed ball bearings and furnished at the specified voltage and phase.

Bearings: Bearings shall be permanently lubricated, sealed ball type selected for a minimum L50 life in excess of 200,000 hours at maximum cataloged operating speed.

Belts and Drives: Belts shall be oil and heat resistant, nonstatic type. Drives shall be precision machined cast iron type, keyed and securely attached to the wheel and motor shafts. Drives shall be sized for 150% of the installed motor horsepower. The variable pitch motor drive shall be factory set to the specified fan RPM.

Product: Fan shall be model TDBX as manufactured by LOREN COOK COMPANY of Springfield, Missouri.

Dimensions (Inches)

tdbx dimension drawing

Size A B C D
O.D.
E
O.D.
F G K L
O.D.
M
O.D.
N P R S Ship
Wt.
DB-8 18-1/8 15-7/16 23 7-7/8 9-1/4 21 9-5/8 2/5/16 23 13-7/16 16-1/8 6-3/8 2-3/8 8-1/4 24-9/16  53
DB-9 21-1/8 18-1/8 25-3/4 10-5/16 11-7/8 24 11-3/4 2-11/16 26 16-1/8 19-1/8 7-3/16 2-3/8 9-7/8 27-1/4  70
DB-10 22-3/8 20-1/8 28-1/4 11-3/8 13-1/8 26 13-3/8 2-11/16 28 18-1/8 20-3/8 7-15/16 4 10-7/8 30-1/16  80
DB-13 27-1/8 23-3/16 31-1/4 13-7/16 15-5/8 30 16-1/8 2-11/16 32 21-3/16 25-1/8 9-1/8 4 12-23/32 35-9/16  108
DB-15 32-1/2 26-15/16 36-1/4 15-7/8 18-5/8 36 19-1/2 2-11/16 38 24-15/16 30-1/2 10-1/2 4 14-27/32  39-5/16  205
DB-18 41 31-7/8 44-3/4 18-7/8 21-7/8 44 24 2-7/8 46 29-7/8 39 400
DBX

LOREN COOK COMPANY certifies that the SDB shown herein is licensed to bear the AMCA Seal. The ratings shown are based on tests and procedures performed in accordance with AMCA Publication 211 and AMCA Publication 311 and comply with the requirements of the AMCA Certified Ratings Program.

Type SDB is furnished standard with UL 705 and cUL705 listing (Power Ventilator/ZACT) when furnished with a TEFC motor.

SDB

Backward Inclined Wheel
Single
Duct Blower

  • SDB utilizes a single DWDI backward inclined blower assembly with the motor located out of the air stream.
  • SDB capacity ranges from 600 CFM up to 15,200 CFM, with static pressures from 0 to 3 inches w.g.

Description: Fan shall be duct mounted, belt driven centrifugal cabinet fan with external motor mount.

Certifications: Fan shall be manufactured at an ISO 9001 certified facility. Fan shall be listed by Underwriters Laboratories (UL 705) and UL listed for Canada (cUL 705). Fan shall bear the AMCA Certified Ratings Seal for Sound and Air Performance.

Construction: The fan shall be of bolted construction utilizing corrosion resistant fasteners. Housing shall be minimum 18 gauge galvanized steel with two access doors and integral duct collars. Internal blower assembly shall be mounted on rubber vibration isolators. Motor shall be out of the airstream. Hanging brackets shall be provided for horizontal installation. Unit shall bear an engraved aluminum nameplate. Nameplate shall indicate design CFM, static pressure and maximum fan RPM. Unit shall be shipped in ISTA Certified Transit Tested Packaging.

Wheel: Wheel shall be DWDI centrifugal backward inclined, constructed of 100% aluminum, including a precision machined cast aluminum hub. Wheel inlet shall overlap an aerodynamic aluminum inlet cone to provide maximum performance and efficiency. Wheel shall be balanced in accordance with AMCA Standard 204-96, Balance Quality and Vibration Levels for Fans.

Motor: Motor shall be heavy duty type with permanently lubricated sealed ball bearings and furnished at the specified voltage and phase.

Bearings: Bearings shall be designed and individually tested specifically for use in air handling applications. Construction shall be heavy duty regreasable ball type in a cast iron housing selected for a minimum L50 life in excess of 200,000 hours at maximum cataloged operating speed.

Belts and Drives: Belts shall be oil and heat resistant, nonstatic type. Drives shall be precision machined cast iron type, keyed and securely attached to the wheel and motor shafts. Drives shall be sized for 150% of the installed motor horsepower. The variable pitch motor drive shall be factory set to the specified fan RPM.

Product: Fan shall be model SDB as manufactured by LOREN COOK COMPANY of Springfield, Missouri.

Dimensions (Inches)

DBX dimension drawing

Size A B C D
O.D.
E
O.D.
F G K L
O.D.
M
O.D.
N P R S Ship
Wt.
DBX-8  18-1/8  15-7/16  23  7-7/8   9-1/4  21  9-5/8  2-5/16 23 13-7/16  16-1/8   6-3/8  2-3/8  8-1/4  24-9/16  53
DBX-9  21-1/8  18-1/8  25-3/4  10-5/16 11-7/8 24 11-3/4 2-11/16 26 16-1/8  19-1/8   7-3/16  2-3/8  9-7/8  27-1/4  70
DBX-10  22-3/8  20-1/8  28-1/4  11-3/8 13-1/8  26 13-3/8  2-11/16 28 18-1/8  20-3/8   7-15/16  4 10-7/8 30-1/16  80
DBX-13  27-1/8  23-3/16  31-1/4  13-7/16  15-5/8  30 16-1/8  2-11/16 32 21-3/16  25-1/8   9-1/8  4 12-23/32 35-9/16  108
DBX-15  32-1/2  26-15/16  36-1/4  15-7/8  18-5/8  36 19-1/2  2-11/16 38 24-15/16  30-1/2  10-1/2 4 14-27/32  39-5/16  205
DBX-18  41 31-7/8  44-3/4  18-7/8  21-7/8  44 24 2-7/8 46 29-7/8  39 12-3/8 4 17-9/16  44-1/4  400