STI Intumescent RTC Collar
Intumescent RTC Firestop Collars are designed to seal around plastic pipes that penetrate through fire-resistance rated walls and floors. When temperatures exceed 320° F (160° C), the insert starts to expand and will seal out any fire or smoke.
- Small profile to fit into small cracks
- Not water soluble, so it can be used on water supply pipes and other pipes that might make condensation
- Flexes without flake-off to prevent eye hazards
- Expands quickly to help prevent the spread of fire and smoke
- Swells up to 60 times its normal size to seal off every little crack and crevice
|Product Name||RTC Firestop Collar|
|Shell Construction||Nom 22 GA Galvanized Steel 0.03" thick (0.76 mm)|
|Intumescent Insert||Molded One Piece|
|Sizes Accommodated||3" trade size pipe (89 mm)
3" trade size pipe fitting (102 mm)
4" trade size pipe (114 mm)
4" trade size pipe fitting (127 mm)
|Expansion Begins||320° F (160° C)|
|Volume Expansion||32x to 64x (free expansion)|
|In Service Temperature||≤ 120° F (49° C)|
|STI-RTC350||Adjustable Firestop Collar, 3 or 4 inches, for pipes and couplings|
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