2. Hilti
  3. CP 644

Hilti CP 644 Operating instructions

  • Hello! I've reviewed the Hilti datasheet for the CP 644 Firestop Collars, specifically models CP 644-200/8" and CP 644-250/10". This document details their features, such as the ready-to-use design, fast installation, and suitability for various pipe types including PVC and CPVC. I can assist with your questions about their installation and specifications.
  • What type of pipes are the firestop collars designed for?
    What is the temperature range for usage of firestop collars?
    How many collars should be used for wall installations?
Hilti Firestop
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DBS • 05/22
Product information
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
• 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
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Technical Data
Pipe
outside
Description dia (in.)
Collar Collar No. of
outside Height hooks and
dia. (in.) (in.) 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 7.6 g/ l
Mold and mildew Class 0 (ASTM G21-96)
Tested in accordance with UL 1479, ASTM E 814, ASTM G21,
CAN/ULC-S115
FIRESTOP DEVICE
FOR USE IN THROUGH-PENETRATION
FIRESTOP SYSTEMS
SEE UL FIRE RESISTANCE DIRECTORY
5N76
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