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Downblast Ventilator Without Motor and Drive, Belt, Roof, Motor HP Range 1 to 10


Price $7,257.00 / each

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  • Item # 4YY12
  • Mfr. Model # 4YY12
  • UNSPSC # 40101502
  • Catalog Page # 3704
  • Shipping Weight 715.0 lbs.
Country of Origin USA Country of Origin is subject to change.
Note: Product availability is real-time updated and adjusted continuously. The product will be reserved for you when you complete your order. More

Product Details

This exhaust ventilator is designed to meet the general clean air exhaust requirements for industrial and commercial buildings. Rugged and reliable construction makes fan capable of withstanding severe exhaust conditions. This ventilator's spun aluminum construction features a fully rolled windband bead for increased stability and easy transport. Fresh outside air is drawn in under the motor cover to maximize motor life. Drive frame is internally isolated from the rest of the unit through use of neoprene isolators for long life and quiet operation; no steel-to-steel contact. Motors, sheaves, and belts are packed separately when complete, unassembled ventilator with drive package is ordered.

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Technical Specs

  • Item Downblast Ventilator Without Motor and Drive
  • Drive Type Belt
  • Wheel Dia. 50"
  • CFM Range 17,245 to 37,068 @ 0.0" SP
  • RPM Range 214 to 460
  • Motor HP Range 1 to 10
  • Base Width 64"
  • Mounting Location Roof
  • Base Length 64"
  • Base Height 1-3/4"
  • Overall Dia. 83"
  • Overall Height 50-3/4"
  • Shaft Dia. Wheel End 1-1/4"
  • Shaft Dia. Sheave End 1-1/4"
  • Bearing Type Regreasable Pillow Block
  • Max. Inlet Temp. 180 Degrees
  • Housing Material Spun Aluminum
  • Wheel Material Aluminum
  • Wheel Type Backward Inclined Centrifugal
  • Adj. 12 3/8"H Roof Curb Stock No. 2ZV87
  • Recommended 12 In. Fixed Curb Item No. 2RB83
  • Recommended 8 In. Fixed Curb Item No. 4YY76
  • Recommended Damper Size (In.) 50 x 50
  • Recommended Damper Stock No. 4HX71
  • Requires Roof Curb For New Installations
  • Standards UL/cUL 705AMCA Sound & Air
  • Includes NEMA 1 Junction Box
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Replacement Parts

Need help finding replacement parts? Please use the list below or call 1-800-GRAINGER (1-800-472-4643)

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