Product Technical Guides : US-EN Firestop Systems Guide For Specifiers | Page 52

FIRESTOP COLLAR CP 644
Product description
• A ready-to-use firestop collar, made of galvanized steel housing and
intumescent inserts for firestopping large combustible pipes
Product features
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No expiration date alleviates shelf life concerns
Ready-to-use collar
Fast installation time
Adjustable/moveable fastening tabs
Areas of application
• Sealing of penetrations for a variety of combustible pipes from 8" to 10" in
diameter
• Vented or closed pipe
For use with
• Concrete, masonry, and gypsum walls
• Wall and floor assemblies
Types of installation
• Wall: two collars, one on each side
• Floor: one collar on underside (bottom)
Examples
• Waste water pipes
• Fresh water pipes
• Combustible pipe applications
Installation instructions
• See Hilti Literature or third-party listings for complete application and
installation details
FIRESTOP DEVICE
FOR USE IN THROUGH-PENETRATION
FIRESTOP SYSTEMS
SEE UL FIRE RESISTANCE DIRECTORY
5N76
Hilti Firestop
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Technical Data
Pipe
outside
Description
dia (in.)

Collar
outside
dia. (in.)
Collar
Height
(in.)
CP 644-200/8" 8.8 10.0 6.9 10
CP 644-250/10" 10.8 12.4 9.1 12
Temperature resistance -40°F to 140°F (–40°C to 60°C)
Intumescent Activation Approx. 392°F (200°C)
Expansion ratio (unrestricted) Up to 1:10
Tested in accordance with UL 1479, ASTM E 814, ASTM G21
No. of
hooks and
fasteners