RK
XK
มิถุนายน 24, 2022
MK
มิถุนายน 24, 2022RK
SPLITTER WITH HIGH INSERTION LOSS 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 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
- 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 100 °C max., up to 300 °C for a limited period of time
Optional equipment and accessories
- Stainless and PUR-coated constructions on request
คำอธิบาย
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 resonance
- Attenuation particularly in the low frequency range of critical fan noise
- Hygiene tested and compliant with VDI 6022
- For use in areas with potentially explosive atmospheres (ATEX), zones 1, 2, 21 and 22 (outside) according to EC Directive 1999/92/EC.
Special features
- Resonating panels ensure increased insertion loss in the frequency range of critical fan noise
- Energy-efficient due to aerodynamically formed splitter frame
- Up to 30 % lower differential pressure
- Hygiene tested and compliant with VDI 6022
Nominal sizes
- H: 150 – 1800 mm
- L: 500, 750, 1000, 1250, 1500 mm
- Intermediate sizes of H are possible: 150 – 1800 mm in increments of 1 mm
- Intermediate lengths (L) are possible: 150 – 1500 mm in increments of 1 mm
- H + L 600 mm min., 3300 mm max., 80 kg max.
- Height and length subdivided: not available
Variants
Principal attenuation range
- A: 250/125 Hz
- C: 125/63 Hz
Construction
Materials and surfaces
- No entry: Galvanised steel 1.0917
- P1: Powder-coated RAL 7001, silver grey
Parts and characteristics
- Aerodynamically formed 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
- Resonating panels fitted to reduce air-regenerated noise by resonance
Construction features
- Sound absorbing material and resonating panels fitted to reduce air-regenerated noise by resonance
- 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, up to 300 °C for 8 h max.
Materials and surfaces
- Splitter frames, centre mullion and resonating panels made of galvanised sheet steel 1.0917
- Absorption material is mineral wool
- To EN 13501, fire rating Class A1, non-combustible
- RAL quality mark RAL-GZ 388
- Biosoluble and hence hygienically safe according to the German TRGS 905 (Technical Rules for Hazardous Substances) and EU directive 97/69/EC
- 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
- Regular cleaning intervals according to VDI6022
Download
Product Information
Certificates
Operation Manuals
