Inner duct of the item is perforated duct, which is covered with
tough polyester film and flbreglass wool. The outer jacket is
spiral flexible aluminum-plastic composite duct. It is
characteristic of well preventing sound leaking from pipe wall,
higher strength good resistance to acid, alkali, wear-resistance,
puncture and tear resistance.
Specification:
1.Temperature range:
**0℃
to ***0℃
2.Operating pressure: Max.****0
Pa
3.Opearting air velocity: Max *0m/s
4.Bending
radius: Min
0.*4*D**5mm
5.Diameter range:
*2mm***8mm
6.Standard length:
*0m
Sound Performance Grade
A Insertion Loss *0dB
Construction
1.Inner duct: perforated AL foil
2.Glass wool blanket: *5mm,*4kg/m³
3.Barrier：non
woven fabric/PET film
4.R-value: 0.*5㎡k/w
5.Outer jacket: steel spiral helix between the
lays
