Adjusts Easily to Fit Multiple Pipe and Coupling Sizes
SpecSeal® Series RTC Range-Taking Firestop Collars 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” and 4” trade size pipes (89 and 114 mm) and corresponding 3” and 4” couplings (102 and 127 mm).
When exposed to temperatures in excess of 320°F (160°C), the SpecSeal® RTC Collar’s molded insert begins to expand (intumesce) rapidly to form a dense, highly insulative char. Free expansion ranges from 32 to 64 times the original (pre-expanded) volume. Expansion continues up to 1,000°F (538°C).
- Adjustable: One collar fits 3” (89mm) pipe, 3” (102mm) coupling, 4” (114mm) pipe, and 4” (127mm) coupling!
- Rapid Expansion: Closes off burning pipes quickly.
- Small Profile: Use it in all the tight spots!
- Flexible & Durable: No loose flakes (eye hazards).
- Water Resistant: No water soluble or hygroscopic ingredients.
- Economical: Lower installed cost.
- High Volume Char: Expands up to 60 times!