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Circular External Air Louver

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Circular External Air Louver

The External Air Vent, as an essential component of ventilation systems, not only ensures a fresh air flow but also effectively prevents rain, snow, foreign objects, and living creatures from entering the system. These louvers can be manufactured in one piece in diameter ranges from Ø65 mm to Ø900 mm, making them suitable for systems of various sizes.

Being made of galvanized material ensures that the shutters have high corrosion resistance, which increases their durability against harsh weather conditions and contributes to the systems having a longer lifespan. The standard 10 mm x 10 mm wire mesh located in the throat of the louver prevents small animals and various objects from entering through the louvers, increasing the safety and functionality of ventilation systems. These features make the Outdoor Air Louver a reliable and efficient air inlet/outlet point.

Circular External Air Louver

General Features

  • X Outside Air Louver is used to provide fresh air intake in ventilation systems and to prevent rain, snow, foreign matter and living things from entering the system at exhaust air discharge points.
  • X It can be manufactured in one piece from Ø65 mm to Ø900 mm.
  • X It is made of galvanized material. The shutter throat comes standard with 10 mm x 10 mm chicken wire.
  • X It has high corrosion resistance.

Material

  • STANDARD: Manufactured from Galvanized Sheet Metal
  • OPTIONAL: X

Case Types / Dimensioning

CASE TYPES Safe deposit box Frame Size
Standard Galvanized ØD + 75 mm
Optional X X

Surface Coating

  • STANDARD: RAL 9010 or RAL 9016 Electrostatic Powder Coating
  • OPTIONAL: Different RAL color codes and unpainted manufacturing

Pressure Loss Table Fresh Air (Pa)

THROAT DIAMETER (mm)

FLOW m³/h

Ø65

Ø100

Ø200

Ø300

Ø400

Ø500

Ø600

Ø650

Ø700

Ø750

Ø800

Ø850

Ø900

50

145

26

2

-

-

-

-

-

-

-

-

-

-

300

-

-

57

11

4

-

-

-

-

-

-

-

-

500

-

-

135

31

100

4

-

-

-

-

-

-

-

1.000

-

-

-

124

39

16

8

6

4

3

2

2

1

2.000

-

-

-

-

145

64

31

23

17

13

10

8

6

3.000

-

-

-

-

-

180

69

50

37

28

22

18

14

4.000

-

-

-

-

-

-

122

95

66

50

39

30

24

5.000

-

-

-

-

-

-

-

-

103

78

60

45

38

6.000

-

-

-

-

-

-

-

-

147

112

86

65

54

7.000

-

-

-

-

-

-

-

-

-

-

117

90

73

10.000

-

-

-

-

-

-

-

-

-

-

-

-

149

Mounting Options / Hole Sizes

Mounting Method Hole Size
Screw ØD + 15 mm

Accessories

  • Wire Cage
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