General Information
Application
- Sound attenuator splitters are used for the reduction of fan noise and air-regenerated noise in ventilation and air conditioning systems
- Attenuation effect due to absorption
- Broadband attenuation even in the high frequency range
- Hygiene tested and compliant with VDI 6022
- For use in areas with a potentially explosive atmosphere (EC Directive 2014/34/EU (ATEX)), zones 1, 2, 21 and 22 (outside) according to Directive 1999/92/EC
Special features
- Increased insertion loss even in the high-frequency range
- Energy savings due to aerodynamically profiled 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: 6 – 98 in
- L: 20, 30, 39, 49, 59, 69, 79, 89, 98 in
- Intermediate sizes of H and L are possible: 6 – 98 in in increments of 0.04 in
- Undivided construction: H + L 24 in min., 157 in max., 220 lbs max.
- Size limit for H or L: If one dimension is greater than 59 in, the other one must not exceed 59 in
- Height or length subdivided in case of a deviation and for sizes 98 – 197 in
- Height subdivided from H ≥ 98 in, otherwise with the length subdivided
Variants
- XK100: splitter thickness 4 in
- XK200: splitter thickness 8 in
- XK230: splitter thickness 9 in
- XK300: splitter thickness 12 in
Construction
Splitter surface
- 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 airregenerated noise
- Reduces the pressure loss
- Covers the edges of the sound absorbing material
- Sound absorbing material fitted to reduce air-regenerated noise by absorption
Accessories
- UU-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 are folded to protect the infill
- Operating temperature up to 212 °F; variant L up to 572 °F for 8h max.
Materials and surfaces
- Splitter frame and centre mullion 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
- Non-hazardous thanks to high biosolubility according to the German Ordinance on Hazardous Substances and Note Q of the European Regulation (EC) No. 1272/2008
- Faced with glass fibre fabric as a protection against erosion from airflow velocities of up to 3937 fpm
- 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
Disclosure of Chemicals
- RoHS EU Directive 2011/65/EU (RoHS)
- This product or single variants comply with EU Directive 2011/65/EU (RoHS) on the restriction of the use of certain hazardous substances in electrical and electronic equipment. For more information, please refer to our Environmental Product Declarations
- REACH 1907/2006 (EC Regulation REACH)
- This product or single variants comply with the provisions of EC Regulation No. 1907/2006, also known as REACH (Registration, Evaluation, Authorisation and Restriction of Chemicals). For more information, please refer to our Environmental Product Declarations
