Acoustic transfer grill TRH

doorextruded aluminum

TRH-A series grilles have a simple design which makes them useful for incorporation in all styles of architecture. Their special features make them ideal for placing in doorways and interior walls. The “V” shaped profile of the blades allows the passage of air but prevents light from entering, and at the same time reduces the sound pressure level. CLASSIFICATION TRH-A Grille with telescopic frame to facilitate the adjustment and placing on door thickness between 30 – 55 mm. TRH-B Grille TRH-A to place on door thickness between 47 – 72 mm. TRV-... Grille with blades parallels to H size. TRH-S Grilles without telescopic frame. MATERIAL Extruded aluminium grille. All grilles are provided with a seal on the back of the frame in order that the perimeter in contact is airtight. FIXING SYSTEMS (T) The grille is fixed in place with screws. FINISHES AA Anodised in matt silver. M9016 Lacquer in white colour similar to RAL 9016. RAL… Lacquer in other colours (RAL specification