STI RTC350 Adjustable Collar for 3" (89 mm) & 4" (114 mm) Pipe and Couplings

STI RTC350 Adjustable Collar for 3” (89 mm) & 4” (114 mm) Pipe and Couplings

SpecSeal Range-Taking Firestop Collars (RTC) are factory manufactured devices designed to seal plastic pipes penetrating through fire-resistance-rated walls and floors. SpecSeal RTC Collars are comprised of a heavy gauge metal collar housing a molded intumescent insert. The adjustable collar is designed to allow a single collar to fit 3 in (89 mm) and 4 in (114 mm) trade size pipes and corresponding 3” (102 mm) and 4” (127 mm) couplings. When exposed to temperatures in excess of 320deg F (160deg C), the SpecSeal Range-Taking Firestop Collars molded insert begins to expand (intumesce) rapidly to form a dense, highly insulative char. Free expansion ranges from 32x to 64x original (pre-expanded) volume. Expansion continues up to 1,000deg F (538°C).

Features:

• One Collar fits 3” pipe, 3” pipe coupling, 4” pipe, and 4” pipe coupling
• Fits into tight spaces
• Low installed cost
• Tested in a variety of construction types