Technical Specifications for the Acoustic-Optimizer EWA:

Fabric: Xtreme

Colours: 3 Standard

  • Light grey
  • Dark yellow
  • Lime

  • Made from 100 % recycled polyester, non-heavy metal dyes.
  • Lightfastness 6 (ISO 105 - B02)
  • EU Ecolabel, Oeko-Tex Standard 100
  • Flame retardant (building material class B1) in accordance with DIN 4102-1
  • Flame retardant according to ÖNORM B 3825
  • Smoke formation class Q1 - low smoke emission

The fibre of the fabric is inherently flame-retardant, the fabric is not impregnated (no emission into the room air): The properties are therefore fully retained in the long term.

Other colours available on request from 20 pieces..

Der Akustik-Optimierer mit Filzbezug

Cover Material: Felt

Colour

  • Mottled grey

  • Felt made from 95 % virgin wool, 5 % polyamide
  • Colourants that do not contain heavy metals
  • Lightfastness 5 (ISO 105 - B02) Dyes not containing heavy metals
  • EN 1021 - 1, 2 (cigarette test, match test)
  • BS 7176 Geringe Gefährdung
  • ÖNORM B 3825 & A 3800-1
  • Light fastness 5 (ISO 105 - B02)
  • The felt is not impregnated

Der Akustik-Optimierer mit Kunstlederbezug

Cover Material: Imitation Leather (washable)

Colour

  • Grey

  • For kitchens, sanitary areas etc.
    Washable (warm soapy water, damp cloth), alcohol-resistant
  • Upper material: 98 % PVC, 2 % PU
  • Backing fabric: 100 % cotton
  • EN 15777 free from phthalates
  • Free from colourants containing heavy metals
  • Light fastness 6 (ISO 105 - B02)
  • EN 1021-1, 2 (cigarette test, match test)
  • BS 7176 Low Hazard
  • ÖNORM B 3825 & A 3800-1

Lenght of the acoustic body:: 120 cm

Total width of an element incl. core tube: 126 cm

Calculated space requirement (distance between drill holes): 127 cm


EWA.20:

  • Diameter: 20 cm
  • Surface area: 0,8 square metres
  • Weight: 3,25 kg

EWA.34:

  • Diameter: 34 cm
  • Surface area: 1,36 square metres
  • Weight: 10 kg

Standard mounting:

Included in delivery: pre-assembled safety suspension with dowels and eyebolt.

The universal dowel supplied is suitable for both solid ceilings and suspended cavity ceilings. Depending on the nature of the ceiling, a different anchor may need to be used.

Akustik-Optimierer für den Lärmschutz in Schulen

Quick and safe installation:

Steel cable, secure attachment to the eyebolt with stainless steel snap hook. Therefore quick and easy installation.


Maximum load per dowel:

  • EWA.20 = 3,25 kg
  • EWA.34 = 10 kg

Optional wall mounting:

If it cannot be suspended from the ceiling, we can supply sturdy wall brackets at no extra cost.


Filling material:
Mineral wool, non-flammable (A1)


Measurement report of TÜV-Nord on absorption behaviour
EWA with fabric Xtreme

Download: PDF (540 KB)

The sound absorber labelled EWA.1 in the report is identical to EWA.20, only the designation has changed.

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