Rectangular Attenuator – VRA Series

• • The VRA series are rigidly constructed and consist of a galvanized sheet metal casing containing a series of centre and side splitters. End flanges are not drilled as standard unless ordered with matching flanges. The splitters are filled with non-hygroscopic and incombustible material.

 

•  This material is covered with a gauze and then further covered with galvanized perforated sheet metal. Melinex lining of the acoustic infill can be provide to prevent the ingress of moisture or grease. Melinex lining can cause a slight drop in performance in the higher frequencies.
•  Standard attenuator are suitable for duct pressures up to 1kPa.

 

Product category : Noise Vibration Control