UL Classified firestop collars consist of a steel collar and an intumescent silicone strip suitable for 1.5”, 2”, 3” and 4” nominal trade size plastic pipes. Intumescent collars are to be fastened around plastic pipes where they penetrate fire-rated floor and walls.
Also Check: UL Classified Firestop Putty Pads
These UL Classified firestop collars are used to achieve passive fire protection which includes compartmentalization along with the use of fire-resistance-rated walls and floors They do this by surrounding the pipes with intumescent properties that expand during a fire. This prevents flames and smoke from passing into other compartments.
• Tested to ASTM-E814 (UL1479)
• UL Classified
Intumescent Firestop Collar Features
• 4 Hour fire rating
• Easy installation
• Lightweight and durable
• Saves labor time
• 1.5″ (38mm), 2″ (51mm), 3″ (76mm), 4″ (102mm) sizes