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Blower, Draft Inducer

TJERNLUND

Price: $197.75 / each

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  • Item # 4C731
  • Mfr. Model # D-3
  • NSN # 4140-01-334-3783
  • UNSPSC # 40101601
  • Catalog Page # 4319
  • Shipping Weight 10.0 lbs.
Country of Origin USACountry of Origin is subject to change.

Technical Specs

  • ItemDraft Inducer
  • TypeIn-line
  • Vent Pipe Dia. (In.)5 to 8
  • Voltage115
  • Amps0.96
  • Watts74
  • HP1/20
  • Height (In.)9-1/8
  • Width (In.)9-1/2
  • Depth (In.)7
  • Cut Out Required3-1/8 x 8-5/8
  • ApplicationProvides Positive Draft for Smokepipe and Aids Proper Exhaust of Combustion Gas.
  • Construction MaterialAluminized Steel Housing and Blower Wheel
  • RemarksView Catalog Page For Selection Criteria
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Product Q&A

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Above page shows cfm ratings, but the numbers don't mean anything. The cfm rating should be something around 200-400 or more.
8 months ago
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Answers

Answer: 
Grainger has contacted the product supplier and has been advised by them of the following.

This blower is designed for draft induction for gas fired heaters. The CFM’s will change based on vent pipe size and flue gas temperature.
5” pipe @ 270° flue gas 190CFM, @ 390° flue gas 166CFM, @ 530° flue gas 163CFM.
6” pipe @ 270° flue gas 246CFM, @ 390° flue gas 190CFM, @ 530° flue gas 169CFM.
7” pipe @ 270° flue gas 259CFM, @ 390° flue gas 166CFM, @ 530° flue gas 118CFM.
8” pipe @ 270° flue gas 217CFM, @ 390° flue gas 110CFM, @ 530° flue gas 65CFM.

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8 months ago
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