A-AK-AS
Roccheggiani’s A, AK and AS Series sound
attenuators are used for reducing the noise
level in civil and industrial air conditioning systems.
They consist of a robust frame made of galvanized sheet, containing high density mineral wool panels covered with a white or black
anti-erosion glass fabric, like interglass, with a
high coefficient of sound absorption.
Sound attenuators are available in 3 versions:
A: frame made of galvanized sheet, containing
mineral wool panels and glass fabric covering
AK: equal to A, with in addition further protective covering
made of perforated sheet
AS: equal to A, with in addition further protective covering
made of stretched sheet

Sound attenuators are available in any length or height and
thickness of 50 mm and multiples up to 500 mm maximum.