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Mega Storm Fiberglass Exhaust Fan

Product Description:
Our 72" Mega Storm fiberglass exhaust fan is made right here in Wisconsin and uses an American-made motor and twin Gates® size "A" belts. The heavy-duty X-frame and Double A auto belt tensioner provide superior strength and durability. The Mega Storm Fiberglass Exhaust Fan is built to last! Use this exhaust fan in virtually any application! High Performance & High Efficiency Models Available.

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Key Features:

  • Certified performances up to 44,734 CFM @.10” SP
  • Twin Gates® size “A” belts are easily accessible and require no tools for replacement in seconds
  • Double groove steel belt tensioner for longer life
  • Four-point contact X-frame for strength and durability
  • UV-resistant housing for long life
  • 5-blade aluminum prop
  • Drainage holes in the bottom of the housing allows moisture to drain
  • Single or three phase 3 HP, UL recognized motors 
  • Smooth exterior for easy cleaning
  • High Performance & High Efficiency Models Available

Applications:

  • Dairy
  • Greenhouse
  • Industrial
  • Poultry

Product Videos:

Part # Motor Wiring Instructions Size Output (CFM) HP Volts Amps NP Hz Ph Spd RPM Drive Prop Test # Cord Speed Control Compatible VFD Compatible Fixed or Portable Oscillating CFM@ .0" SP CFM/ Watt @ .0 SP CFM@ .05" SP CFM/ Watt @ .05" SP CFM@ .10" SP CFM/ Watt @ .10" SP CFM@ .15" SP CFM/ Watt @ .15" SP CFM@ .20" SP CFM/ Watt @ .20" SP Air Flow Ratio FEI @ 0.10" SP Rough-In Dimensions Shutter Cone Net Wt Housing Material Housing Color Guard material and coating Guard Color Guard Spacing Blade Material Blade Color Component Certifications
Part - Motor Wiring Instructions Size Output (CFM) HP Volts Amps NP Hz Ph Spd RPM Drive Prop Test # Cord Speed Control Compatible VFD Compatible Fixed or Portable Oscillating CFM@ .0" SP CFM/ Watt @ .0 SP CFM@ .05" SP CFM/ Watt @ .05" SP CFM@ .10" SP CFM/ Watt @ .10" SP CFM@ .15" SP CFM/ Watt @ .15" SP CFM@ .20" SP CFM/ Watt @ .20" SP Air Flow Ratio FEI @ 0.10" SP Rough-In Dimensions Shutter Cone Net Wt Housing Material Housing Color Guard material and coating Guard Color Guard Spacing Blade Material Blade Color Component Certifications
Single Phase - No Cone - Aluminum Shutter
VMSA72A5N31 --- 72” 3 230 14.5 60 1 1 317 Belt 5-Alm 20190305-04 No No No Fixed Non 45,683 18.7 42,736 16.8 38,960 14.9 33,717 13.1 25,090 9.2 0.59 1.72 77” W x 77”H A N 527 Fiberglass White Hot dip galvanized Metallic Aluminum Metallic CSA, UL recognized
Single Phase - With Cone - Aluminum Shutter
VMSA72A5C31 --- 72” 3 230 14.5 60 1 1 318 Belt 5-Alm 20190305-02 No No No Fixed Non 47,659 20.2 44,728 18.1 40,792 15.7 34,435 13.4 25,679 9.5 0.57 1.81 77” W x 77”H A C 577 Fiberglass White Hot dip galvanized Metallic Aluminum Metallic CSA, UL recognized
Three Phase - No Cone - Aluminum Shutter
VMSA72A5N33 --- 72” 3 230/460 9.0/4.5 60 3 1 337 Belt 5-Alm 20160306-06 No yes w/VFD Yes Fixed Non 48,891 17.4 46,150 15.8 42,950 14.3 38,276 12.7 29,782 10.2 0.65 1.64 77” W x 77”H A N 518 Fiberglass White Hot dip galvanized Metallic Aluminum Metallic CSA, UL recognized
Three Phase - With Cone - Aluminum Shutter
VMSA72A5C33 --- 72” 3 230/460 9.0/4.5 60 3 1 340 Belt 5-Alm 20190306-02 No yes w/VFD Yes Fixed Non 51,080 18.6 48,016 16.6 44,734 14.9 40,295 13.1 28,722 9.6 0.60 1.71 77” W x 77”H A C 565 Fiberglass White Hot dip galvanized Metallic Aluminum Metallic CSA, UL recognized
Part #
VMSA72A5N31
Single Phase - No Cone - Aluminum Shutter
Details
Mega Storm, 72" BD 115/230V 3HP 1PH 5 Alm Blade, AS, No Cone
Motor Wiring Instructions
---
Size
72”
Output (CFM)
HP
3
Volts
230
Amps NP
14.5
Hz
60
Ph
1
Spd
1
RPM
317
Drive
Belt
Prop
5-Alm
Test #
20190305-04
Cord
No
Speed Control Compatible
No
VFD Compatible
No
Fixed or Portable
Fixed
Oscillating
Non
CFM@ .0" SP
45,683
CFM/ Watt @ .0 SP
18.7
CFM@ .05" SP
42,736
CFM/ Watt @ .05" SP
16.8
CFM@ .10" SP
38,960
CFM/ Watt @ .10" SP
14.9
CFM@ .15" SP
33,717
CFM/ Watt @ .15" SP
13.1
CFM@ .20" SP
25,090
CFM/ Watt @ .20" SP
9.2
Air Flow Ratio
0.59
FEI @ 0.10" SP
1.72
Rough-In Dimensions
77” W x 77”H
Shutter
A
Cone
N
Net Wt
527
Housing Material
Fiberglass
Housing Color
White
Guard material and coating
Hot dip galvanized
Guard Color
Metallic
Guard Spacing
Blade Material
Aluminum
Blade Color
Metallic
Component Certifications
CSA, UL recognized
Part #
VMSA72A5C31
Single Phase - With Cone - Aluminum Shutter
Details
Mega Storm, 72" BD 115/230V 3HP 1PH 5 Alum Blade, AS, Cone
Motor Wiring Instructions
---
Size
72”
Output (CFM)
HP
3
Volts
230
Amps NP
14.5
Hz
60
Ph
1
Spd
1
RPM
318
Drive
Belt
Prop
5-Alm
Test #
20190305-02
Cord
No
Speed Control Compatible
No
VFD Compatible
No
Fixed or Portable
Fixed
Oscillating
Non
CFM@ .0" SP
47,659
CFM/ Watt @ .0 SP
20.2
CFM@ .05" SP
44,728
CFM/ Watt @ .05" SP
18.1
CFM@ .10" SP
40,792
CFM/ Watt @ .10" SP
15.7
CFM@ .15" SP
34,435
CFM/ Watt @ .15" SP
13.4
CFM@ .20" SP
25,679
CFM/ Watt @ .20" SP
9.5
Air Flow Ratio
0.57
FEI @ 0.10" SP
1.81
Rough-In Dimensions
77” W x 77”H
Shutter
A
Cone
C
Net Wt
577
Housing Material
Fiberglass
Housing Color
White
Guard material and coating
Hot dip galvanized
Guard Color
Metallic
Guard Spacing
Blade Material
Aluminum
Blade Color
Metallic
Component Certifications
CSA, UL recognized
Part #
VMSA72A5N33
Three Phase - No Cone - Aluminum Shutter
Details
Mega Storm, 72" BD 230/460V 3HP 3PH 5 Alm Blade, AS, No Cone
Motor Wiring Instructions
---
Size
72”
Output (CFM)
HP
3
Volts
230/460
Amps NP
9.0/4.5
Hz
60
Ph
3
Spd
1
RPM
337
Drive
Belt
Prop
5-Alm
Test #
20160306-06
Cord
No
Speed Control Compatible
yes w/VFD
VFD Compatible
Yes
Fixed or Portable
Fixed
Oscillating
Non
CFM@ .0" SP
48,891
CFM/ Watt @ .0 SP
17.4
CFM@ .05" SP
46,150
CFM/ Watt @ .05" SP
15.8
CFM@ .10" SP
42,950
CFM/ Watt @ .10" SP
14.3
CFM@ .15" SP
38,276
CFM/ Watt @ .15" SP
12.7
CFM@ .20" SP
29,782
CFM/ Watt @ .20" SP
10.2
Air Flow Ratio
0.65
FEI @ 0.10" SP
1.64
Rough-In Dimensions
77” W x 77”H
Shutter
A
Cone
N
Net Wt
518
Housing Material
Fiberglass
Housing Color
White
Guard material and coating
Hot dip galvanized
Guard Color
Metallic
Guard Spacing
Blade Material
Aluminum
Blade Color
Metallic
Component Certifications
CSA, UL recognized
Part #
VMSA72A5C33
Three Phase - With Cone - Aluminum Shutter
Details
Mega Storm, 72" BD 230/460V 3HP 3PH 5 Alum Blade, AS, Cone
Motor Wiring Instructions
---
Size
72”
Output (CFM)
HP
3
Volts
230/460
Amps NP
9.0/4.5
Hz
60
Ph
3
Spd
1
RPM
340
Drive
Belt
Prop
5-Alm
Test #
20190306-02
Cord
No
Speed Control Compatible
yes w/VFD
VFD Compatible
Yes
Fixed or Portable
Fixed
Oscillating
Non
CFM@ .0" SP
51,080
CFM/ Watt @ .0 SP
18.6
CFM@ .05" SP
48,016
CFM/ Watt @ .05" SP
16.6
CFM@ .10" SP
44,734
CFM/ Watt @ .10" SP
14.9
CFM@ .15" SP
40,295
CFM/ Watt @ .15" SP
13.1
CFM@ .20" SP
28,722
CFM/ Watt @ .20" SP
9.6
Air Flow Ratio
0.60
FEI @ 0.10" SP
1.71
Rough-In Dimensions
77” W x 77”H
Shutter
A
Cone
C
Net Wt
565
Housing Material
Fiberglass
Housing Color
White
Guard material and coating
Hot dip galvanized
Guard Color
Metallic
Guard Spacing
Blade Material
Aluminum
Blade Color
Metallic
Component Certifications
CSA, UL recognized

Product Details:

Part #

Motor Wiring Instructions

Size

HP

Volts

Amps NP

Hz

Phase

Speed

RPM

Drive

Prop

Test #

Speed Control Compatibility

VFD Compatible

Fixed or Portable

CFM@ .0" SP

CFM/ Watt @ .0 SP

CFM@ .05" SP

CFM/ Watt @ .05" SP

CFM@ .10" SP

CFM/ Watt @ .10" SP

CFM@ .15" SP

CFM/ Watt @ .15" SP

CFM@ .20" SP

CFM/ Watt @ .20" SP

Air Flow Ratio

FEI @ 0.10" SP

Rough-In Dimensions

Shutter

Cone

Housing Material

Housing Color

Guard material & coating

Guard Color

Blade Material

Blade Color

Single Phase - No Cone - Aluminum Shutter

VMSA72A5N31

---

72”

3

230

14.5

60

1

1

317

Belt

5-Alm

20190305-04

No

No

Fixed

45,683

18.7

42,736

16.8

38,960

14.9

33,717

13.1

25,090

9.2

0.59

1.72

77” W x 77”H

A

N

Fiberglass

White

Hot dip galvanized

Metallic

Aluminum

Metallic

Single Phase - With Cone - Aluminum Shutter

VMSA72A5C31

---

72”

3

230

14.5

60

1

1

318

Belt

5-Alm

20190305-02

No

No

Fixed

47,659

20.2

44,728

18.1

40,792

15.7

34,435

13.4

25,679

9.5

0.57

1.81

77” W x 77”H

A

C

Fiberglass

White

Hot dip galvanized

Metallic

Aluminum

Metallic

Three Phase - No Cone - Aluminum Shutter

VMSA72A5N33

---

72”

3

230/460

9.0/4.5

60

3

1

337

Belt

5-Alm

20160306-06

yes w/VFD

Yes

Fixed

48,891

17.4

46,150

15.8

42,950

14.3

38,276

12.7

29,782

10.2

0.65

1.64

77” W x 77”H

A

N

Fiberglass

White

Hot dip galvanized

Metallic

Aluminum

Metallic

Three Phase - With Cone - Aluminum Shutter

VMSA72A5C33

---

72”

3

230/460

9.0/4.5

60

3

1

340

Belt

5-Alm

20190306-02

yes w/VFD

Yes

Fixed

51,080

18.6

48,016

16.6

44,734

14.9

40,295

13.1

28,722

9.6

0.60

1.71

77” W x 77”H

A

C

Fiberglass

White

Hot dip galvanized

Metallic

Aluminum

Metallic

Product Details:

Part #

Motor Wiring Instructions

Size

HP

Volts

Amps NP

Hz

Phase

Speed

RPM

Drive

Prop

Test #

Speed Control Compatibility

VFD Compatible

Fixed or Portable

CFM@ .0" SP

CFM/ Watt @ .0 SP

CFM@ .05" SP

CFM/ Watt @ .05" SP

CFM@ .10" SP

CFM/ Watt @ .10" SP

CFM@ .15" SP

CFM/ Watt @ .15" SP

CFM@ .20" SP

CFM/ Watt @ .20" SP

Air Flow Ratio

FEI @ 0.10" SP

Rough-In Dimensions

Shutter

Cone

Housing Material

Housing Color

Guard material & coating

Guard Color

Blade Material

Blade Color

Single Phase - No Cone - Aluminum Shutter

VMSA72A5N31

---

72”

3

230

14.5

60

1

1

317

Belt

5-Alm

20190305-04

No

No

Fixed

45,683

18.7

42,736

16.8

38,960

14.9

33,717

13.1

25,090

9.2

0.59

1.72

77” W x 77”H

A

N

Fiberglass

White

Hot dip galvanized

Metallic

Aluminum

Metallic

Single Phase - With Cone - Aluminum Shutter

VMSA72A5C31

---

72”

3

230

14.5

60

1

1

318

Belt

5-Alm

20190305-02

No

No

Fixed

47,659

20.2

44,728

18.1

40,792

15.7

34,435

13.4

25,679

9.5

0.57

1.81

77” W x 77”H

A

C

Fiberglass

White

Hot dip galvanized

Metallic

Aluminum

Metallic

Three Phase - No Cone - Aluminum Shutter

VMSA72A5N33

---

72”

3

230/460

9.0/4.5

60

3

1

337

Belt

5-Alm

20160306-06

yes w/VFD

Yes

Fixed

48,891

17.4

46,150

15.8

42,950

14.3

38,276

12.7

29,782

10.2

0.65

1.64

77” W x 77”H

A

N

Fiberglass

White

Hot dip galvanized

Metallic

Aluminum

Metallic

Three Phase - With Cone - Aluminum Shutter

VMSA72A5C33

---

72”

3

230/460

9.0/4.5

60

3

1

340

Belt

5-Alm

20190306-02

yes w/VFD

Yes

Fixed

51,080

18.6

48,016

16.6

44,734

14.9

40,295

13.1

28,722

9.6

0.60

1.71

77” W x 77”H

A

C

Fiberglass

White

Hot dip galvanized

Metallic

Aluminum

Metallic

FAQs:

Ventilation helps to maintain a healthy environment by regulating moisture and humidity, controlling temperatures, removing fumes and odors, and exchanging fresh air for humans and animals to maximize productivity.
Heat stress in animals is a very serious condition that can lead to a decrease in appetite, loss of milk or egg production, shutdown of the reproduction system, diminished nutrient absorption, poor growth and even death in extreme cases.
A Tunnel Ventilation System uses a series of exhaust fans on the short end of your building with inlets located on the opposite end. Air enters the building through the inlets where it is pulled down the length of your building like a wind tunnel and exhausted out the opposite end. The exhaust fans create air exchange and a high velocity air movement.

Advantages: insect control, consistent environment, proper temperature, humidity and odor control, keeps bedding and floors dry.

Disadvantages: higher investment cost when compared to natural ventilation, very little natural light, not suitable for year round use without a fresh air system due to inadequate fresh air distribution during cool winter ventilation conditions.
Cross Tunnel Ventilation is very similar to Tunnel Ventilation whereas a series of exhaust fans and inlets are used on the walls of your building. With Cross Tunnel Ventilation, the exhaust fans and inlets are located on the long sides of your building instead of the short sides. The air is pulled through the width of your building instead of through the length like it is with regular Tunnel Ventilation.

Advantages: building ends can be used for necessary overhead doors, insect control, consistent environment, proper temperature, humidity and odor control, keeps bedding and floors dry.

Disadvantages: higher investment cost when compared to natural ventilation, very little natural light, not suitable for year round use due to inadequate fresh air distribution during cool winter ventilation conditions.
All fans should be cleaned regularly by removing accumulated dirt and debris on louvers, blades and motors to improve performance. Dirt that clogs your fan motor will cause it to run hot, and will reduce the life of your motor. You should also regularly check fan belts and keep them adjusted to factory specifications. Loose belts can cause belt slippage and will reduce the airflow of your fan.