Product description
A ready-to-use firestop collar, made of galvanized steel housing and intumescent inserts for firestopping large combustible pipes.
Product features
- Ready-to-use collar
- No construction required
- Fast installation time
- Adjustable/moveable fastening tabs
Areas of application
- Sealing of penetrations for combustible pipes from 8" to 10" in diameter
- Vented or closed pipe
- PVC or CPVC pipe
For use with
- Concrete, masonry, and gypsum walls
- Wall and floor assemblies rated up to 2 hours
Types of installation
- Wall: two collars, one on each side
- Floor: one collar on underside (bottom)
Examples
- Waste water pipes
- Fresh water pipes
Installation instructions
See Hilti literature or third-party listings for complete application and installation details.
Technical Data
| Description | Pipe outside dia (in.) | Collar outside dia. (in.) | Collar Height (in.) | No. of hooks and fasteners |
|---|---|---|---|---|
| CP 644-200/8" | 8.8 | 10.0 | 6.9 | 10 |
| CP 644-250/10" | 10.8 | 12.4 | 9.1 | 12 |
Temperature resistance: -4 °F to 212 °F (-20 °C to 100 °C)
Intumescent Activation: Approx. 410 °F (210 °C)
Expansion ratio (unrestricted): Up to 1:17
Application temperature: 23 °F to 122 °F (-5 °C to 50 °C)
Storage temperature: 23 °F to 122 °F (-5 °C to 50 °C)
Shelf life: Not relevant
LEED VOC: 7.6g/l
Mold and mildew: Class 0 (ASTM G21-96)
Tested in accordance with: UL 1479, ASTM E 814, ASTM G21, CAN/ULC-S115
Certification: UL Classified [UL mark] for use in through-penetration firestop systems. See UL Fire Resistance Directory 5N76.
Visual Description
The document includes an illustration showing the Hilti Firestop Collar (CP 644) installed around a large combustible pipe passing through a concrete wall. The collar is depicted as a segmented metal band with intumescent material lining the inside, secured by fasteners. A separate image shows the components of the collar, including the segmented ring and four metal fastening clips.
