Cylindrical attenuators are intended for use in ventilation systems. They are necessary for the noise reduction of the flow rate control of air terminal units. They also reduce sound transmission through ventilation ducting to adjacent rooms (cross talk).
circular
Ø 100 – 1,000 mm
L: 500 – 1,500 mm
Insulation thickness:
50 or 100 mm
Galvanised steel
Casing air leakage flow rate complies with DIN EN 1751, class A
circular
Ø 110 – 400 mm
L: 500 – 1.500 mm
Insulation thickness: 50 mm
Plastic (PPs)
Casing air leakage flow rate complies with DIN EN 1751, class C
circular
Ø 250 – 1,000 mm
L: 500 – 1,500 mm
Insulation thickness:
50 or 100 mm
Galvanised steel
Casing air leakage flow rate complies with DIN EN 1751, class A
circular
Ø 80 – 400 mm
L: 500 – 2,000 mm
Insulation thickness:
25 or 50 mm
Aluminium
Casing air leakage flow rate complies with DIN EN 1751, class A
circular
Ø 80 – 400 mm
L: 500 – 2,000 mm
Insulation thickness:
25 or 50 mm
Aluminium
Casing air leakage flow rate complies with DIN EN 1751, class A
