Attenuators
Application
Special characteristics
Nominal sizes
Variants
Principal attenuation range
Construction
Materials and surfaces
Parts and characteristics
Construction features
Material and surfaces
Standards and guidelines
Maintenance
The attenuation effect of the RK splitters is due to resonance. 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. The splitters have a mineral wool infill that prevents an amplification of the sound.
Splitter thickness | 200 mm |
Nominal sizes (H × L) | 150 × 450 – 1500 × 1500 mm, 450 × 150 – 1800 × 1500 mm |
Height subdivide | Not available |
Length subdivided | Not available |
Intermediate sizes | In increments of 1 mm |
Operating temperature | Up to 100 °C, up to 300 °C for 8h 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.
RK200-A, insertion loss De [dB] and differential pressure Δpt [Pa]
L | Airway width | Centre frequency fm [Hz] | vs [m/s] | ||||
---|---|---|---|---|---|---|---|
63 | 125 | 250 | 6 | 10 | 14 | ||
500 | 50 | 6 | 17 | 12 | 21 | 58 | 114 |
500 | 100 | 5 | 10 | 5 | 11 | 31 | 61 |
1000 | 50 | 8 | 24 | 14 | 24 | 67 | 131 |
1000 | 100 | 5 | 18 | 6 | 13 | 35 | 69 |
1500 | 50 | 11 | 32 | 17 | 27 | 75 | 147 |
1500 | 100 | 8 | 25 | 8 | 14 | 40 | 78 |
RK200-C, insertion loss De [dB] and differential pressure Δpt [Pa]
L | Airway width | Centre frequency fm [Hz] | vs [m/s] | ||||
---|---|---|---|---|---|---|---|
63 | 125 | 250 | 6 | 10 | 14 | ||
500 | 50 | 8 | 14 | 7 | 21 | 58 | 114 |
500 | 100 | 3 | 6 | 3 | 11 | 31 | 61 |
1000 | 50 | 10 | 20 | 9 | 24 | 67 | 131 |
1000 | 100 | 7 | 10 | 4 | 13 | 35 | 69 |
1500 | 50 | 13 | 27 | 11 | 27 | 75 | 147 |
1500 | 100 | 10 | 13 | 5 | 14 | 40 | 78 |
Sound attenuator splitters used for the reduction of fan noise and air-regenerated noise in air conditioning systems. Attenuation effect due to resonance. To be used in combination with sound absorbing splitters. 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 air-regenerated noise measured according to EN ISO 7235. Hygiene compliant with VDI 6022, VDI 3803 Part 1 and DIN 1946 Part 4. Suitable for areas with potentially explosive atmospheres (ATEX), zones 1, 2, 21 and 22 (outside) according to Directive 1999/92/EC.
Special characteristics
Material and surfaces
Variants
Principal attenuation range
Construction
Materials and surfaces
Technical data
The length (L) of splitter sound attenuators refers to the airflow direction.
Sizing data
RK | – | … | – | A | – | / | 200 | × | 600 | × | 1500 | |
| | | | | | | | | | | | | | ||||||
1 | 2 | 3 | 4 | 5 | 6 | 7 |
4 Material
Resonator construction | 250/125 Hz |
Height | 1000 mm |
Length | 1200 mm |
Installation and commissioning
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Tu smo za vas
Navedite svoju poruku i vrstu zahtjeva
Tel.: +385 1 61 55 401 | +385 1 61 58 598
Kontakt
Zahvaljujemo na vašoj poruci!
Vaša je poruka poslana i ubrzo će biti obrađena.
Naš odjel za servisne zahtjeve što skorije će vas kontaktirati.
Za opća pitanja u vezi s proizvodima ili uslugama možete i nazvati:
Tel.: +385 1 61 55 401 | Faks: +385 1 61 58 598