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Downblast Vent, Belt Drive, 30-1/2 In

  • Mfr # 7A581
  • Zoro # G2720593
product price: 
$
2,758.99
/ea
Additional $170.00 delivery surcharge applies per item.
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Key Features

Item - Roof Ventilators
Downblast Ventilator
Drive Package With Motor Included
Yes
Duty Rating - Roof Ventilators
Standard
Drive Type - Roof Ventilators
Belt Drive
Mounting Location - Roof Ventilators
Roof
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Specifications

Details

MFR #
7A581
Zoro #
G2720593
UPC #
-
Country of Origin
Multiple
Item - Roof Ventilators
Downblast Ventilator
Drive Package With Motor Included
Yes
Duty Rating - Roof Ventilators
Standard
Drive Type - Roof Ventilators
Belt Drive
Mounting Location - Roof Ventilators
Roof
Number of Speeds
1
Voltage - Roof Ventilators
115V AC, 230V AC
Motor HP - Roof Ventilators
1 1/2 hp
CFM @ 0.000-In. SP
9719
Housing Material
Aluminum
CFM @ 0.625-In. SP
7388
Includes
Drive Package, NEMA 1 Junction Box
CFM @ 0.375-In. SP
8446
Adj. 6 3/8"H Roof Curb Stock No.
4c455
Max. BHP
1.55
Recommended 8 In. Fixed Curb Item No.
4HX43
RPM
600
CFM @ 0.500-In. SP
7952
Item
Centrifugal Downblast Roof Exhaust Fan
Wheel Material
Aluminum
Mounting Location
Roof
Sones @ 0.500-In. SP @ 5 Ft.
13.8
Speed Controllable
No
Sones @ 0.250-In. SP @ 5 Ft.
14.9
Phase
1
Motor HP
1 1/2 hp
Drive Type
Belt Drive
Recommended 12 In. Fixed Curb Item No.
4HX51
CFM @ 0.750-In. SP
6721
CFM @ 0.875-In. SP
5743
Assembled/Unassembled
Unassembled
CFM @ 0.250-In. SP
8907
Motor Voltage
115V, 230V
Hz
60 Hz
Adj. 12 3/8"H Roof Curb Stock No.
3C438
CFM @ 0.125-In. SP
9334
Max. Inlet Temp.
180 Degrees
Drive Package Included
Yes
Wheel Type
Backward Inclined
Agency Compliance
AMCA Sound & Air, UL/cUL 705
Sones @ 0.125-In. SP @ 5 Ft.
15.4
Bearing Type
Regreasable Pillow Block
Standards
AMCA Sound and Air, UL/cUL 705
Airflow @ 0.000 in SP
9,719 cfm
For High-Static Pressure Applications
No
Maximum Inlet Air Temperature
180 Degrees F
Application
Industrial and Commercial Applications
Base Shape
Square
Exhaust Airflow @ 0.375 in SP
8,446 cfm
Motor Speed
1,725 RPM
Frequency
60 Hz
Exhaust Airflow @ 0.000 in SP
9,719 cfm
Includes Drive Package
Yes
Safety Features
Birdscreen, Windband
Brake Horsepower
1 11/20 hp
Sound Level
11.1 sones @ 0.875 in SP and 5 ft, 12.2 sones @ 0.750 in SP and 5 ft, 13.2 sones @ 0.625 in SP and 5 ft, 13.8 sones @ 0.500 in SP and 5 ft, 14.3 sones @ 0.375 in SP and 5 ft, 14.9 sones @ 0.250 in SP and 5 ft, 15.4 sones @ 0.125 in SP and 5 ft, 15.9 sones @ 0.000 in SP and 5 ft
Spark Resistant Construction Type
A
For Air Type
Clean Air
Assembly
Unassembled
Motor Horsepower
1 1/2 hp
Current
19.6/9.8 A
Features
Fully Rolled Windband Bead for Increased Stability and Easy Transport, NEMA 1 Junction Box Located in Motor Enclosure
Motor Enclosure
Open Dripproof
Exhaust Airflow @ 0.500 in SP
7,952 cfm
Exhaust Airflow @ 0.125 in SP
9,334 cfm
High-Efficiency Motor
No
Includes Motor
Yes
Exhaust Airflow @ 0.250 in SP
8,907 cfm
Maximum Fan Speed
600 RPM
Motor Location
Out of Airstream
Housing Material Fabrication
Spun
Maximum Static Pressure
7/8 in wc
Nameplate Voltage
115/230V AC
Compatible Curb Manufacturer Part Number
2RB81, 2ZV84, 3C438, 4C455, 4HX43, 4HX51
Resistance Properties
Weather Resistant
Mount Type
Roof Curb
Electrical Connection
Power Cord

Dimensions

Base Size - Roof Ventilators
42 in x 42 in
Dimension D
8 25/100 in
Dimension A
42 in
Overall Dia.
50 in
Shaft Dia. Wheel End
1 in
Wheel Dia.
30 1/2 in
Dimension B
50 in
Overall Height
37 3/4 in
Base Length
42 in
Base Height
1 3/4 in
Base Square Size - Roof Ventilators
42" x 42"
Base Width
42 in
Dimension C
36 in
Housing Length
50 in
Wheel Diameter
30 1/2 in
Propeller Shaft Diameter
1 in
Housing Width
50 in
Overall Width
50 in
Overall Length
50 in
Overall Diameter
50 in
Damper Size
35 x 35 in
Wire Rope Length
50 in
Length
50 in
Fits Chest Size
Fully Rolled Windband Bead for Increased Stability and Easy Transport, NEMA 1 Junction Box Located in Motor Enclosure

Description

Centrifugal Downblast Roof Exhaust Fan, Drive Type Belt Drive, Assembly Unassembled, Wheel Diameter 30 1/2 in, Base Diameter Not Applicable, Base Length 42 in, Base Width 42 in, Base Shape Square, Nameplate Voltage 115/230V AC, Phase 1, Motor Horsepower 1 1/2 hp, Exhaust Airflow @ 0.000 in SP 9,719 cfm, For High-Static Pressure Applications No, High-Efficiency Motor No, For Air Type Clean Air, Includes Drive Package Yes, Includes Motor Yes, Mounting Location Roof

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