OCTA with baffle

OCTA with baffle

The OCTA with baffle sound attenuator strongly attenuates mid and high-frequency acoustic propagation in circular ducting.
OCTA with baffle
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OCTA with baffle
The OCTA with baffle circular sound attenuator very strongly attenuates noise transmitted in the ventilation ducting and therefore ensure acoustic comfort inside commercial and multi-occupancy residential buildings while delivering good airtight performance. A wide range of diameters from Ø 250 to Ø 630 mm.
OCTA with baffle

The + products

  • high-performance acoustic attenuation,
  • energy savings: low pressure losses,
  • energy savings: low leak rate (class C rating).
  • simple to install on circular ducting,
  • range available as from Ø 250.

The interior of the OCTA with baffle is lined with mineral wool coated with glass mat to attenuate noise. Furthermore, Octa is fitted with a central mineral wool baffle which reinforces its attenuation capacity.

  • silencer:
    • external casing made of solid galvanised steel,
    • connection rings with seals,
    • Internal casing made of slotted galvanised steel,
    • sound-proofing: mineral wool + glass mat,
    • insulation thickness: 50 mm for Ø up to 500 mm and 100 mm for larger ducts
    • M0 fire certification, or A1 under Euroclass ratings,
    • class C airtight performance as per EN 1751
  • central baffle:
    • single-piece panels made of mineral wool,
    • Anti-flocking glass mat,
    • galvanised steel frame,
    • leading edges built into baffle.
    • baffle thickness: 50 mm up to Ø 355 mm and 100 mm for larger ducts,
    • M1 fire certification.
  • directly inserted between two circular ducts.
References Insulation density of the baffle (kg/m³) Insulation density (kg/m³) Thickness of insulation (mm) Insulation thickness of the baffle (mm) Insulation material
11094990 - OCTA with baffle D250

55

17

50

50

Mineral wool

11094991 - OCTA with baffle D315

55

17

50

50

Mineral wool

11094992 - OCTA with baffle D355

55

17

50

50

Mineral wool

11094993 - OCTA with baffle D400

55

17

50

100

Mineral wool

11094994 - OCTA with baffle D450

55

17

50

100

Mineral wool

11094995 - OCTA with baffle D500

55

17

50

100

Mineral wool

11094996 - OCTA with baffle D560

55

17

100

100

Mineral wool

11094997 - OCTA with baffle D630

55

17

100

100

Mineral wool

OCTA with baffle
References F (mm) Ø d (mm) Ø D (mm) Weight (kg)
11094990 - OCTA with baffle D250

900

250

355

12

11094991 - OCTA with baffle D315

900

315

400

15,5

11094992 - OCTA with baffle D355

900

355

450

17

11094993 - OCTA with baffle D400

900

400

500

20

11094994 - OCTA with baffle D450

900

450

560

22,5

11094995 - OCTA with baffle D500

900

500

630

25

11094996 - OCTA with baffle D560

1000

560

800

45

11094997 - OCTA with baffle D630

1000

630

800

45,5

References Pressure losses at 5 m/s (Pa)
11094990 - OCTA with baffle D250

6

11094991 - OCTA with baffle D315

6

11094992 - OCTA with baffle D355

7

11094993 - OCTA with baffle D400

7

11094994 - OCTA with baffle D450

7

11094995 - OCTA with baffle D500

7

11094996 - OCTA with baffle D560

10

11094997 - OCTA with baffle D630

5

References Acoustic attenuation measured according to standard ISO 7235 at 1000 Hz (dB) Acoustic attenuation measured according to standard ISO 7235 at 125 Hz (dB) Acoustic attenuation measured according to standard ISO 7235 at 2000 Hz (dB) Acoustic attenuation measured according to standard ISO 7235 at 250 Hz (dB) Acoustic attenuation measured according to standard ISO 7235 at 4000 Hz (dB) Acoustic attenuation measured according to standard ISO 7235 at 500 Hz (dB) Acoustic attenuation measured according to standard ISO 7235 at 63 Hz (dB) Acoustic attenuation measured according to standard ISO 7235 at 8000 Hz (dB) Regeneration at 5 m/s at 1000 Hz (dB) Regeneration at 5 m/s at 125 Hz (dB) Regeneration at 5 m/s at 2000 Hz (dB) Regeneration at 5 m/s at 250 Hz (dB) Regeneration at 5 m/s at 4000 Hz (dB) Regeneration at 5 m/s at 500 Hz (dB) Regeneration at 5 m/s at 63 Hz (dB) Regeneration at 5 m/s at 8000 Hz (dB)
11094990 - OCTA with baffle D250

31

5

39

11

29

20

4

15

23

36

19

34

23

29

29

39

11094991 - OCTA with baffle D315

27

2

36

7

19

15

2

10

30

37

22

37

23

34

29

40

11094992 - OCTA with baffle D355

28

2

32

6

13

14

1

12

29

43

23

35

23

33

29

46

11094993 - OCTA with baffle D400

30

4

30

6

14

16

3

10

30

41

24

34

23

32

29

49

11094994 - OCTA with baffle D450

28

2

28

8

21

17

1

12

30

49

22

38

23

36

29

51

11094995 - OCTA with baffle D500

22

3

19

6

10

15

1

11

31

52

25

38

23

38

29

51

11094996 - OCTA with baffle D560

22

6

23

9

14

16

1

8

36

45

27

41

20

40

24

49

11094997 - OCTA with baffle D630

22

4

24

6

15

16

2

7

34

45

24

41

21

41

29

49

Fire protection rating

A1

Products and accessories references

  • OCTA with baffle D250
    OCTA with baffle D250
    11094990
    413,10 (without VAT)
  • OCTA with baffle D315
    OCTA with baffle D315
    11094991
    464,10 (without VAT)
  • OCTA with baffle D355
    OCTA with baffle D355
    11094992
    615,06 (without VAT)
  • OCTA with baffle D400
    OCTA with baffle D400
    11094993
    723,18 (without VAT)
  • OCTA with baffle D450
    OCTA with baffle D450
    11094994
    805,80 (without VAT)
  • OCTA with baffle D500
    OCTA with baffle D500
    11094995
    838,44 (without VAT)
  • OCTA with baffle D560
    OCTA with baffle D560
    11094996
    1122,00 (without VAT)
  • OCTA with baffle D630
    OCTA with baffle D630
    11094997
    1264,80 (without VAT)

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