The aphonic grid is made from sound-absorbing fins in galvanized steel
V shaped. The grid is supplied with anti-rain profiles and one inner
protection grid. Optionally the grids are available in stainless steel or
aluminum. more frequent using is silencing of air treatment units of
evaporative towers, boiler rooms, etc.
Insulation indexes
AKR 300 = Rw 18
AKR 500 = Rw 21
