FIRESTOP Duct Wrap-38 Concrete Wall Circular Duct One-way Internal Fire Oversize Aperture
Circular duct up to 1,000mm diam in a square/rectangular aperture through a concrete or masonry wall, 120mm thick or greater. One-way system. FIRESTOP Duct Wrap-38 single or double layer on non-fire side only. Useful for situations where a grease duct opens to the fire source (kitchen). Steel angle both sides, but no wrap or collar required from fire source to the first fire-wall. Internal fire only. Annular gap 20-170mm. Up to FRR 120/120/120
Products
Details
System ID #: 718
Max Fire Rating: 120 minutes
Max Thermal Rating: 120 minutes
Size: Circular Duct up to 1000mm diam
Build specifications
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