Hilti CP 643 INSTALLATION

Installation instructions for CP 643

Firestop

System

1. Clean plastic pipe 3. Close collar 4. Attach fastening

2. Close remaining gap
to provide smoke and

hooks

gas tight seal

Opening

1. Clean the plastic pipes. Expansion of the intumescent material
during a fire acts to close the plastic pipe. Very dirty pipes with,
for example, remains of mortar, may lead to a delay in this
closing action. Badly soiled plastic pipes should, therefore, be
cleaned in the area where the CP 643 firestop collar is to
be installed.

Application of firestop system

2. Seal the opening. Gaps must be closed with FS-ONE. The
approved methods vary and are given in the specific UL system.

3. Close the CP 643 firestop collar. Place the CP 643 firestop collar
around the plastic pipe and lock the closure with firm pressure
until it latches.

4. Attach fastening hooks. The fastening hooks can be attached to
various points on the metal housing. 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 643 firestop collar. Only when fastened properly

- To secure the CP 643 firestop collar, use Hilti anchors/fasteners.

- For maintenance reasons, a penetration seal could be
permanently marked with an identification plate. In such a case
mark the identification plate and fasten it in a visible position
next to the seal.

Notice about approvals

• When making a pipe seal using Hilti CP 643 Intumescent Firestop
Collar, please refer to the UL directory or Hilti Firestop Manual for
restrictions as to opening size, type and thickness of wall or floor,
maximum pipe diameter, etc.

Not to be used...

• With folded and coiled sheet-metal and cast-iron pipes (not tested)

• In highly corrosive surroundings

• With unapproved anchors/fasteners

Safety precautions

• Keep out of the reach of children.

• Read the material safety data sheet.

Storage

• Store only in the original packaging in a location protected
from moisture.

can CP 643 protect against fire passing through.

- Mark the fastening points.

- Drill holes with a Hilti rotary hammer drill (i.e. TE 5) or,
depending on base material, fasten using Hilti power actuated
tool (e.g. DXA 40).

5. Fasten collar and
installation plate
(if required)