FLAMRO Variant N II A collar

In all fire-rated
• Flexible and rigid walls ≥ 100mm thickness
• Rigid floors | ceilings ≥ 150mm thickness

• Acoustic decoupling by foam padding 4 mm
• Low space requirement due to low height
• Approved for flexible walls
• Additional installation with up to two cables for pneumatic dispatch systems possible
• Mounting of the collars with their lugs doweled on or mortared in the structural component possible
• Application possible in case of already routed pipes by a simple locking technique
• Zero distance between mounted collars is allowed
• Penetration of pipes with synthetic rubber insulation up to 43 mm thickness through
solid structural components possible
• Oblique penetration and pipe sockets in the area of the seal are possible
• Sealing of curved pipes
• Joint width up to 5 mm can remain unsealed (see No. 4.4.4.6 of the German approval)
• It is possible to choose a firestop collar up to 3 numbers bigger in case of difficult installation situations (see No. 4.2.2 of the German approval)

The firestop collars FLAMRO Variant N II may be used in flexible walls, rigid walls and rigid floors in accordance with below mentioned table. Walls and floors are classified according to EN 13501-2 corresponding to the required fire resistance period.
Construction of flexible walls:
• with steel stud substructure and lining on both sides made from min. 2 layers of 12,5 mm thick cementitious or gypsum based slabs with a fire reaction class A1 or A2 according to EN 13501-1
• with wood stud substructure and lining on both sides made from min. 2 layers of 12,5 mm thick cementitious or gypsum based slabs with a fire reaction class A1 or A2 according to EN 13501-1
The distance between the wood substructure and the seal is ≥ 100 mm and the cavity between the linings of the wall, the wood substructure and the seal is tightly clogged with mineral wool of fire reaction class A1 or A2 according to EN 13501-1 in a depth of min. 100 mm.