MK_img_01psd.png
Sound attenuator splitters type MK
MK_img_02psd.psd.link
Aerodynamically optimised splitter frame

Aerodynamically optimised splitter frame

VDI6022_gs_01ai.ai.link
Tested to VDI 6022

Tested to VDI 6022

MK_img_01psd.png
MK_img_02psd.psd.link
VDI6022_gs_01ai.ai.link

MK

Splitter with high insertion loss and broadband attenuation even in the low frequency range

Sound attenuator splitters with resonating panels, ready to be used in ventilation and air conditioning systems

  • Attenuation effect due to absorption and resonance
  • Energy efficient due to aerodynamically formed frame (bullnose radius 20 mm)
  • Acoustic data measured to EN ISO 7235
  • Sound absorbing material is biosoluble and hence hygienically safe
  • Sound absorbing material faced with glass fibre fabric as a protection against erosion due to airflow velocities up to 20 m/s
  • The sound absorbing material is non-combustible, to EN 13501, fire rating class A1
  • For use in areas with potentially explosive atmospheres (according to EC Directive 2014/34/EU (ATEX)), zones 1, 2, and zones 21 and 22 (outside) according to EC Directive 1999/92/EC
  • Operating temperature up to 100 °C, with expanded metal (variant L) up to 300 °C for a limited period of time

Optional equipment and accessories

  • Expanded metal as an additional mechanical protection for the sound absorbing material
  • Stainless steel variant A2 (1.4301), with optional perforated metal facing as an additional protection for the sound absorbing material
  • Other stainless steel and aluminium variants as well as PUR coating are upon request
  • Fitting accessories to join subdivided attenuator splitters

General information

Application
  • Sound attenuator splitters with resonating panels are used for the reduction of fan and air-regenerated noise in ventilation and air conditioning systems
  • Attenuation effect due to absorption and resonance
  • Broadband attenuation even in the low frequency range of critical fan noise
  • Hygiene tested and compliant with VDI 6022
  • For use in areas with potentially explosive atmospheres (EC Directive 2014/34/EU (ATEX)), zones 1, 2, 21 and 22 (outside) according to Directive 1999/92/EC


Special features
Resonating panels ensure increased insertion loss in the frequency range of critical fan noise

  • Energy savings due to aerodynamically formed splitter frame
    • Up to 30 % lower differential pressure
  • Hygiene tested and compliant with VDI 6022
  • Multi-section construction available for large dimensions


Nominal sizes
  • H: 150 – 2500 mm
  • L: 500, 750, 1000, 1250, 1500, 1750, 2000, 2250, 2500 mm
  • Intermediate sizes of H and L are possible: 150 – 2500 mm in increments of 1 mm
  • Undivided construction: H + L 600 mm min., 4000 mm max., 100 kg max.
    • Size limit for H or L: If one dimension is greater than 1500 mm, the other one must not exceed 1500 mm
  • Height and length subdivided in case of deviation, or a dimension 2501 – 5000 mm
    • Height subdivided from H ≥ 2501 mm, otherwise length subdivided


Variants
  • MK100: splitter thickness 100 mm
  • MK200: splitter thickness 200 mm
  • MK230: splitter thickness 230 mm


Construction
Half of the splitter is covered by a resonating panel

  • F: Glass fibre fabric
  • L: glass fibre fabric faced with expanded metal as an additional mechanical protection for the sound absorbing material

Materials and surfaces

  • No entry: Galvanised steel 1.0917
  • A2: Stainless steel 1.4301
    • Construction L: Glass fibre fabric with perforated metal facing as an additional mechanical protection for the sound absorbing material
  • P1: Powder-coated RAL 7001, silver grey



Parts and characteristics
  • Aerodynamically profiled frame
    • Reduced weight and increased rigidity due to special profile
    • Helps to optimise the airflow, hence reducing the air-regenerated noise
    • Reduces the pressure loss
    • Covers the edges of the sound absorbing material
  • Absorption material and resonating panels fitted to reduce air-regenerated noise by absorption and resonance


Accessories
  • U-sheets/clamp sheets to join subdivided attenuator splitters (included with subdivided splitter constructions)


Construction features
  • Aerodynamically formed splitter frame (bullnose radius 20 mm) that helps to reduce turbulence on both the upstream and downstream sides; frame with grooves for increased rigidity
  • Frame edges with bullnose to protect the infill
  • Operating temperature up to 100 °C; variant L up to 300 °C for 8h max.


Materials and surfaces
  • Splitter frames, centre mullion and resonating panels made of galvanised sheet steel 1.0917 or stainless steel 1.4301
  • Expanded metal facing made of galvanised steel 1.0917
  • Perforated metal facing made of stainless steel 1.4301
  • Absorption material is mineral wool
    • To EN 13501, fire rating Class A1, non-combustible
    • RAL quality mark RAL-GZ 388
    • Biosoluble and hence non-hazardous to health according to the German TRGS 905 (Technical Rules for Hazardous Substances) and EU Directive 97/69/EC
    • Faced with glass fibre fabric as a protection against erosion from airflow velocities of up to 20 m/s
    • Inert to fungal and bacterial growth according to EN 846


Standards and guidelines
  • Insertion loss and sound power level of air-regenerated noise tested to ISO 7235
  • Meets the hygiene requirements of VDI 6022, VDI 3803 Part 1 and DIN 1946 Part 4
  • EC Directive 2014/34/EC (ATEX): Equipment and protective systems intended for use in areas with potentially explosive atmospheres
  • EC Directive 1999/92/EC (ATEX): Improvement of the safety and health protection of workers potentially at risk from explosive atmospheres.


Maintenance
  • Low-maintenance as construction and materials are not subject to wear

Műszaki információk

Function, Technical data, Quick sizing, Specification text, Order code

  • Function
  • TECHNICAL DATA
  • QUICK SIZING
  • SPECIFICATION TEXT
  • ORDER CODE

The attenuation effect of the MK splitters is due to absorption and resonance. The splitters have a mineral wool infill as sound absorbing material. Part of the splitter surface that runs parallel to the airflow is covered with resonating panels. These panels start oscillating due to the sound (resonance) and hence absorb sound energy. Resonance works best in the frequency range of critical fan noise. There is a higher attenuation across a wider frequency range when compared to mere absorption splitters.


Splitter thickness100, 200, 230 mm
Nominal sizes (H × L)150 × 450 – 1500 × 2500 mm, 450 × 150 – 2500 × 1500 mm
Height subdivide2501 – 5000 mm or if H and L > 1500 mm
Length subdivided2501 – 5000 mm or if H and L > 1500 mm
Intermediate sizesIn increments of 1 mm
Operating temperature

Up to 100 °C, variant L up to 300 °C for 8 h max.


The length (L) of sound attenuator splitters refers to the airflow direction.


Quick sizing tables provide a good overview of the insertion loss and of differential pressures for different airway widths and airflow velocities. Intermediate values can be calculated with our Easy Product Finder design program.

The differential pressures apply to sound attenuators with a height of 1 m.

MK100, MS100, insertion loss De [dB] and differential pressure Δp[Pa]

L

Airway width

Centre frequency fm [Hz]

vs [m/s]

63

125

250

500

1000

2000

4000

8000

6

10

14

500

50

4

9

10

11

19

25

21

16

10

29

56

500

100

3

4

5

8

13

15

11

8

8

23

45

1000

50

5

11

18

20

28

34

28

23

13

37

72

1000

80

4

8

12

16

23

25

19

15

10

28

55

1000

100

4

7

9

13

21

21

15

11

9

26

51

1500

50

6

14

26

29

37

42

36

29

16

44

87

1500

80

5

11

18

22

32

32

24

19

12

32

63

1500

100

4

9

14

19

29

28

19

13

10

29

56

2000

50

7

17

34

38

46

> 50

44

36

19

52

102

2000

80

6

14

24

29

40

40

29

23

13

36

70

2000

100

5

12

19

24

37

34

22

16

11

32

62

2500

50

8

20

42

47

> 50

> 50

> 50

43

22

60

118

2500

80

7

16

30

35

48

47

34

27

14

40

78

2500

100

6

15

24

30

44

41

26

19

12

34

67

3000

50

9

22

50

> 50

> 50

> 50

> 50

50

24

68

133

3000

80

8

19

35

42

> 50

> 50

39

31

16

44

85

3000

100

7

17

28

35

> 50

47

30

22

13

37

73


MK200, MS200, insertion loss De [dB] and differential pressure Δp[Pa]

L

Airway width

Centre frequency fm [Hz]

vs [m/s]

63

125

250

500

1000

2000

4000

8000

6

10

14

500

50

4

6

18

21

24

18

15

13

21

58

114

500

100

2

4

12

13

15

12

10

8

11

31

61

1000

50

6

13

29

34

39

29

20

17

24

67

131

1000

80

5

11

24

26

29

22

16

13

15

43

84

1000

100

4

9

21

22

24

19

13

11

13

35

69

1500

50

8

20

41

46

> 50

41

26

21

27

75

147

1500

80

6

16

33

36

40

30

20

16

17

48

94

1500

100

5

14

30

32

34

25

17

14

14

40

78

2000

50

10

28

> 50

> 50

> 50

> 50

31

26

30

83

164

2000

80

8

22

43

47

> 50

39

24

19

19

53

105

2000

100

7

20

38

41

43

32

21

17

16

44

86

2000

200

3

12

23

22

18

12

10

7

9

25

50

2500

50

13

35

> 50

> 50

> 50

> 50

37

30

33

92

180

2500

80

10

28

> 50

> 50

> 50

47

28

23

21

59

115

2500

100

8

25

47

50

> 50

39

24

19

17

48

94

2500

200

4

14

29

28

22

14

11

8

10

28

54

3000

50

15

42

> 50

> 50

> 50

> 50

42

34

36

100

197

3000

80

11

34

> 50

> 50

> 50

> 50

33

26

23

64

126

3000

100

10

30

> 50

> 50

> 50

46

28

22

19

53

103

3000

200

5

17

35

34

26

16

13

10

11

30

59


MK230, MS230, insertion loss De [dB] and differential pressure Δp[Pa]

L

Airway width

Centre frequency fm [Hz]

vs [m/s]

63

125

250

500

1000

2000

4000

8000

6

10

14

500

80

2

6

14

16

18

14

12

12

15

43

84

500

100

2

5

12

13

15

11

10

11

13

35

69

1000

80

6

11

24

25

29

21

15

15

18

49

97

1000

100

5

10

21

22

25

17

13

14

14

40

78

1000

200

2

7

14

12

10

6

7

9

8

23

44

1500

80

9

17

34

35

41

28

19

18

20

56

109

1500

100

8

15

31

31

34

23

16

16

16

45

88

1500

200

3

11

20

17

14

9

10

10

9

25

49

2000

80

13

22

44

45

> 50

34

22

22

22

62

121

2000

100

11

20

40

39

44

29

20

19

18

50

98

2000

200

4

14

26

23

18

12

12

12

10

28

54

2500

80

16

27

> 50

> 50

> 50

41

25

25

25

68

134

2500

100

13

25

49

48

> 50

35

23

22

20

55

108

2500

200

5

18

33

28

22

15

15

13

11

30

59

3000

80

19

33

> 50

> 50

> 50

48

29

28

27

74

146

3000

100

16

30

> 50

> 50

> 50

41

26

25

22

60

117

3000

200

6

21

39

34

26

17

17

15

12

33

64

Sound attenuator splitters used for the reduction of fan noise and air-regenerated noise in air conditioning systems. Attenuation effect due to absorption and resonance. Energy-saving as well as hygiene tested.

Installation kit consists of an aerodynamically profiled frame (bullnose radius of 20 mm), sound absorbing material and resonating panels.

The splitter frame reduces pressure losses and air-regenerated noise. The special profile helps to reduce the weight and increase the rigidity of the splitters. Frame edges with bullnose to protect the sound absorbing infill.

Insertion loss and sound power level of the air-regenerated noise tested to ISO 7235.

Meets the hygiene requirements of VDI 6022, VDI 3803 Part 1 and DIN 1946 Part 4.

For use in areas with potentially explosive atmospheres (ATEX), zones 1, 2, 21 and 22 (outside) according to Directive 1999/92/EC.


Special features
Resonating panels ensure increased insertion loss in the frequency range of critical fan noise
  • Energy savings due to aerodynamically formed splitter frame
    • Up to 30 % lower differential pressure
  • Hygiene tested and compliant with VDI 6022
  • Multi-section construction available for large dimensions



Materials and surfaces
  • Splitter frames, centre mullion and resonating panels made of galvanised sheet steel 1.0917 or stainless steel 1.4301
  • Expanded metal facing made of galvanised steel 1.0917
  • Perforated metal facing made of stainless steel 1.4301
  • Absorption material is mineral wool
    • To EN 13501, fire rating Class A1, non-combustible
    • RAL quality mark RAL-GZ 388
    • Biosoluble and hence non-hazardous to health according to the German TRGS 905 (Technical Rules for Hazardous Substances) and EU Directive 97/69/EC
    • Faced with glass fibre fabric as a protection against erosion from airflow velocities of up to 20 m/s
    • Inert to fungal and bacterial growth according to EN 846


Construction
Half of the splitter is covered by a resonating panel

  • F: Glass fibre fabric
  • L: glass fibre fabric faced with expanded metal as an additional mechanical protection for the sound absorbing material


Materials and surfaces

  • No entry: Galvanised steel 1.0917
  • A2: Stainless steel 1.4301
    • Construction L: Glass fibre fabric with perforated metal facing as an additional mechanical protection for the sound absorbing material
  • P1: Powder-coated RAL 7001, silver grey


Technical data
  • Splitter thickness: 100, 200, 230 mm
  • Dimensions: 150 × 450 – 1500 × 2500 mm, 450 × 150 – 2500 × 1500 mm
  • Height subdivided: up to 5000 mm
  • Length subdivided: up to 5000 mm
  • Intermediate sizes: in increments of 1 mm
  • Operating temperature: up to 100 °C, variant L up to 300 °C for 8 h max.


The length (L) of splitter sound attenuators refers to the airflow direction.

  • B [mm]
  • H [mm]
  • L (in airflow direction) [mm]
  • qv  (m³/h)
  • De At 250 Hz [dB]
  • Δpst [Pa]



MKFA2/200×600×1500
|| | | | | |
12 3 4 5 6 7

1 TypeMK 
Sound attenuator splitter with resonating panels

2 Variant
No entry required: TROX standard variants
ACC Connecting material: U-sheets, clamp sheets 

3 Splitter surface
F Glass fibre fabric
L Glass fibre fabric and expanded metal 

4 Material
No entry required: Galvanised steel 1.0917
A2 Stainless steel 1.4301
P1 Powder-coated in RAL 7001, silver grey 

5 Splitter thickness T [mm]
100, 200, 230 

6 Height H [mm]
150 – 5000 

7 Length L in airflow direction [mm]
150 – 5000

Order example: MK–F-A2/100×1500×1000
Splitter surfaceGlass fibre fabric
MaterialStainless steel 1.4301
Splitter thickness100 mm
Height1500 mm
Length1000 mm



Assembly material SDK

To be ordered separately if splitters are to be subdivided by others.

SDKA2/200/2
||||
1234

1 TypeSDK 
Accessories for sound attenuator splitters 

2 MaterialNo entry: galvanised steel (1.0917)
A2 Stainless steel (1.4301)
P1 Powder-coated RAL 7001 (galvanised steel (1.0917)) 

3 Splitter thickness T [mm]
No entry: without U-sheets
100 With 2 U-sheets
200 With 2 U-sheets
230 With 2 U-sheets
300 With 2 U-sheets 

4 No. of clamp sheets for the joints
No entry: H or L ≤ 750 mm without clamp sheets
H or L 751 – 1000 mm: 2 clamp sheets
H or L ≥ 1001 mm: 4 clamp sheets

Order example: SDK-A2/200/2
MaterialStainless steel (1.4301)
Splitter thickness200 mm, with 2 U-sheets
No. of clamp sheets2

Dimensions, Weights

  • DIMENSIONS
  • WEIGHTS
MK_gc_02ai.png
  • H: 150 – 2500 mm
  • L: 500, 750, 1000, 1250, 1500, 1750, 2000, 2250, 2500 mm
  • Intermediate sizes of H and L are possible: 150 – 2500 mm in increments of 1 mm
  • Undivided construction: H + L 600 mm min., 4000 mm max., 100 kg max.
  • Size limit for H or L: If one dimension is greater than 1500 mm, the other one must not exceed 1500 mm
  • Height or length subdivided is possible for sizes 2501 – 5000 mm

The total weight for intermediate sizes can be generated with our Easy Product Finder design program.

*See dimensions on the right


MK 100 – Glass fibre fabric (-F)

H

L

500

750

1000

1250

1500

1750

2000

2250

2500

5003567810111213
75056891113151618
10006810121517192123
12507912151820232730
150081115182124293235

1750

10

13

17

20

24

X

X

X

X

2000

11

15

19

23

27

X

X

X

X

2250

12

17

21

25

30

X

X

X

X

2500

13

18

23

28

32

X

X

X

X

X = subdivided construction

MK 100 – Glass fibre fabric and expanded metal (-L)
HL
5007501000125015001750200022502500
50045781012131516
7505810121416182022
100071012151921242629
125081215192226293437
1500101418222630364044
17501216212630XXXX
20001319242934XXXX
22501521263238XXXX
25001623293541XXXX
X = subdivided construction

MK 100 – Glass fibre fabric and perforated sheet metal (-L-A2)
HL
5007501000125015001750200022502500
500578101214161820
7507912141720232528
100081215182326303336
1250101418242832364246
1500121723283338455055
17501420263238XXXX
20001623303643XXXX
22501825334048XXXX
25002028364452XXXX
X = subdivided construction

MK 200 – Glass fibre fabric (-F)
HL
5007501000125015001750200022502500
500579111315171820
75071012141720232528
100091215182326293235
1250111418232731354145
1500131722273236434852
17501520263136XXXX
20001723293541XXXX
22501925323945XXXX
25002128354250XXXX
X = subdivided construction

MK 200 – Glass fibre fabric and expanded metal (-L)
HL
5007501000125015001750200022502500
5006810121417192123
75081114172023262932
1000101417212630343741
1250121721273236414852
1500142026313743515661
17501724303643XXXX
20001926344148XXXX
22502129374553XXXX
25002432415059XXXX
X = subdivided construction

MK 200 – Glass fibre fabric and perforated sheet metal (-L-A2)
HL
5007501000125015001750200022502500
5007912141619222427
75091316192327313438
1000121621253135404448
1250141925313743485661
1500162330374350596672
17502027354350XXXX
20002231404857XXXX
22502534445463XXXX
25002738485970XXXX
X = subdivided construction

MK 230 – Glass fibre fabric (-F)
HL
5007501000125015001750200022502500
5006810121416182022
75081113161922252830
1000101317202528323539
1250121620253034394549
1500141925303540485357
17501723283440XXXX
20001925323945XXXX
22502128354350XXXX
25002331394755XXXX
X = subdivided construction

MK 230 – Glass fibre fabric and expanded metal (-L)
HL
5007501000125015001750200022502500
5006911131618212325
75091215182125283235
1000111519232933374145
1250131823293440445256
1500162128344046556166
17501926334046XXXX
20002129374452XXXX
22502332414958XXXX
25002635455464XXXX
X = subdivided construction

MK 230 – Glass fibre fabric and perforated sheet metal (-L-A2)
HL
5007501000125015001750200022502500
50071013151821242629
750101417212529333740
1000131722273338434752
1250152127344046526066
1500182533404754647077
17502130384654XXXX
20002433435261XXXX
22502737475868XXXX
25002941526375XXXX
X = subdivided construction

Accesories, Installation details

  • ACCESORIES
  • INSTALLATION DETAILS

Variant ACC


  • U-sheets/clamp sheets to join subdivided attenuator splitters (included with subdivided splitter constructions)
  •  U-sheets and clamping sheets (ACC) for previously provided single splitters that are to be connected
    • Made of galvanised sheet steel 1.0917 or stainless steel 1.4301
    • Number according to division rule for height or length subdivided splitters
    • Specification of the total dimensions is necessary for the delivery of the recommended number of pieces
  • Fixing material for connecting the U-sheets and clamp sheets to the sound attenuator to be provided by others

Number of clamp sheets per splitter joint:
H or L ≤ 750 mm: without clamp sheet
H or L 751 – 1000 mm: 1 clamp sheet on each side
H or L > 1000 mm: 2 clamp sheets on each side recommended
Number of U-sheets per splitter joint: 2
Follow the instructions in the installation manual.

Installation and commissioning

  • Follow the installation manual and comply with the general codes of good practice in order to achieve the given performance data
  • Up to height H = 1200 mm, length L = 1500 mm and 40 kg: any installation orientation, but we recommend upright installation of splitters
  • From height H = 1201 mm: upright installation only
  • The length (L) of sound attenuator splitters and splitter sound attenuators refers to the airflow direction; be sure to note how width, height and length are defined, particularly in case of a vertical airflow
  • A turbulent airflow may cause damage to the splitters 
    • A straight upstream section is required upstream of the sound attenuator
    • The recommended minimum upstream section depends on the change of direction, change of cross-section and splitter arrangement
  • Installation in ducts outside closed rooms requires sufficient protection against the effects of weather


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Az üzenet elküldve, hamarosan feldolgozzuk. Szervizigényekkel foglalkozó részlegünk a lehető leghamarabb felveszi Önnel a kapcsolatot.
Általános, termékekkel, szolgáltatásokkal kapcsolatos kérdéseivel a következő telefonszámokon is fordulhat hozzánk:
Tel.: +36 (1)212-1211 | Fax: +36 (1)212-0735