Dayton 4B051


Exhaust Fan, 48 In, 230 V, Slantwall, D/D

4B051 38891
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$1,955.26+ 6 Business Day Shipping $180.70
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ItemExhaust Fan
TypeSlant-Wall, Direct-Drive
Propeller Dia. (In.)48
CFM @ 0.000-In. SP19,515
CFM @ 0.050-In. SP18,310
CFM @ 0.100-In. SP16,999
CFM @ 0.125-In. SP16,264
CFM @ 0.150-In. SP15,469
CFM/Watt @ 0.000-In. SP18.3
CFM/Watt @ 0.050-In. SP16.8
CFM/Watt @ 0.100-In. SP15.2
CFM/Watt @ 0.150-In. SP13.6
Fan RPM830
Full Load Amps5.80
Motor RPM830
Motor TypeCapacitor Start
Motor EnclosureTotally Enclosed Fan Cooled
Motor InsulationClass B
Height (In.)57 1/4
Width (In.)54 3/4
Max. Depth (In.)59 3/4
Opening Required H (In.)57-1/4
Opening Required W (In.)54-3/4
Flange Width (In.)1 21/32
Venturi Clearance Dia. (In.)48 1/2
Venturi Depth (In.)4 7/8
Mounting LocationWall
Max. Ambient Temp. (F)104
Bearing TypePermanently Lubricated Ball
Number of Blades2
Propeller MaterialGalvanized Steel
Frame MaterialGalvanized Steel
Frame FinishGalvanized Steel
Includes Corrosion-resistant Shutter with Quick-release Latches
Weight 268.000000


Slantwall Exhaust Fan, Direct Drive, Propeller Dia 48 In, 19515 CFM @ 0.000-In SP, Volts 230, 1 Phase, Full Load Amps 5.8, HP 1, Motor RPM 830, Motor Type Capacitor Start, Motor Enclosure TEFC, Fan RPM 830, Bearing Type Permanently Lubricated Ball, Height 57 1/4 In, Width 54 3/4 In, Max Depth 59 3/4 In, Propeller Material Galvanized Steel, Number of Blades 4, 18.3 CFM/Watt @ 0.000-In SP, Includes Corrosion-resistant Shutter with Quick-release Latches

  • Note: OSHA complying guards are required when fan is installed within 8 ft. of floor or working level, or within reach of personnel. Review OSHA Codes and UL Standards.

Slant-Wall and Cone Exhaust Fans
  • Slant-Wall
  • Venturi panel, housing, and propeller are corrosion-resistant galvanized steel. Vertical mount, flush to inside of building. Each includes fan in housing, intake shutter, and discharge guard. For humid, corrosive, nonexplosive, and nonhazardous environments such as livestock and poultry houses.
  • Totally enclosed motor with ball bearings Voltage: 115/230V except 4B051 is 230V only Corrosion-resistant shutter with quick-release latches 6LY25 automatic belt tensioner included with belt drive models
  • Corrosion-resistant shutter held with quick-release turn-button latches Discharge guard features 1 x 2" galvanized wire mesh Shipped fully assembled

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