Hilti Firestop
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Hilti (Canada) Corp. 1-800-363-4458 • www.hilti.ca • Hilti Firestop Systems Guide — Canada
Introduction Applications and Products Selector Guide Through-Penetration Joint Reference Data
Firestop Collar
(CP 643N)
Product description
■ A ready-to-use restop collar, made of a galvanized steel housing
and intumescent inserts for restopping combustible pipes
Product features
■ Ready-to-use collar
■ No construction required
■ Fast installation time
■ Adjustable mounting tabs
■ Low prole for tight installations
Areas of application
■ Firestopping combustible pipes up to 6" diameter in penetrations
through re walls and oors
■ Suitable for the following pipe materials:
■ PVC, CPVC, ABS, PVDF, PP and FRPP
For use with
■ Concrete, masonry, wood oor and gypsum wall assemblies
■ Wall and oor assemblies rated up to 4 hours
Types of installation
■ Wall: two collars, one on each side
■ Floor: one collar on underside (bottom)
Example
■ Waste water pipes
■ Fresh water pipes
Installation instructions for CP 643N
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Notice
• Before handling, read Material Safety Data Sheet and
product label for safe usage and health information.
• Instructions below are general guidelines — always
refer to the applicable drawing in the UL Fire
Resistance Directory or Hilti Firestop Systems Guide
for complete installation information
Opening
1. Clean the plastic pipes. Expansion of the
intumescent material during a fire acts to close the
plastic pipe. Very dirty pipes (ie: with remains of
mortar) may lead to a delay in this closing action.
Soiled plastic pipes should, therefore, be cleaned in
the area where the CP 643N Firestop Collar is to be
installed.
Application of firestop system
2. Seal the opening if required. Gaps may be closed
with FS-ONE. The approved methods vary and are
given in the specific UL system.
3. Close the CP 643N Firestop Collar. Place the
CP 643N Firestop Collar around the plastic pipe
and lock the closure by applying firm pressure until
it latches.
4. Attach fastening hooks. The fastening hooks can
be attached to various points on the metal hous ing.
This allows the fastening points to be made to suit
the space available in each case. The hooks must
be positioned as symmetrically as possible. The
required number of fastening hooks is indicated on
the packaging.
5. Fastening the CP 643N Firestop Collar. Only when
fastened properly can CP 643N offer protection
against fire.
a. Mark the fastening points.
b. Drill holes with a Hilti rotary hammer drill (i.e.
TE 4-A18) or, depending on base material, fasten
using Hilti powder-actuated tool.
c. To secure the CP 643N Firestop Collar, use Hilti
anchors/fasteners.
d. For maintenance reasons, a penetration can be
permanently marked with an identification plate and
fastened in a visible position next to the seal.
Not for use
• With metal pipes
• In highly corrosive surroundings
• With unapproved anchors/fasteners
Storage
• Store only in the original packaging in a location
protected from moisture
1. Clean plastic pipe. 2. Close remaining gap to
provide smoke and gas
resistant seal.
3. Close collar. 4. Attach fastening hooks. 5. Fasten collar and
identication plate
(if required).
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FILL, VOID OR CAVITY MATERIALS
CLASSIFIED BY
UNDERWRITERS LABORATORIES, INC.
FOR USE IN TROUGH-PENETRATION
FIRESTOP SYSTEMS
SEE UL FIRE RESISTANCE DIRECTORY
66Y7
FIRESTOP DEVICE
FOR USE IN THROUGH-PENETRATION
FIRESTOP SYSTEMS
SEE UL FIRE RESISTANCE DIRECTORY
5N76
Technical Data CP 643N
Pipe
outside
Description dia (in.)
Collar Collar No. of
outside Height hooks and
dia. (in.) (in.) fasteners
CP 643-50/1.5"N 1.4–2.0 2.8 0.9 2
CP 643-63/2"N 2.0–2.5 3.4 1.3 2
CP 643-90/3"N 2.6–3.6 4.9 1.7 3
CP 643-110/4"N 3.6–4.5 6.0 1.9 3
CP 643-160/6"N 6.6 9.8 1.9 4
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 • CAN/ULC-S115
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