Rectangular Duct Attenuators Type ‘DS’
The DS rectangular cased attenuator design offers, as standard, many advanced features including aerodynamic splitters and side liners, slide-on flanges and erosion protected acoustic infill covered by galvanized perforated sheet metal. Casing conforms to DW 142 Class B ductwork code. Where preferred, type DK splitters only can be supplied for inclusion in an AHU section or builders work duct. Where required, airway spacer channels can be supplied.
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Product Information
The ‘DS’ Type rectangular attenuator is made from galvanised sheet steel with 40 mm wide Doby slide on flanges. The infill acoustic material is fire retardant and complies with Class ‘O’ Building Regulations. The infill acoustic material is protected with a lining which prevents fibre erosion. This was successfully tested against fibre erosion for up to 30 m/s. This is available in galvanised or stainless steel construction. Vertical or horizontal bend construction is also available on request.