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NOTE: This is an unformatted excerpt from our online fire protection training library.

Firestopping Products and Materials

Firestopping Products

Firestopping Collars

Firestopping Collars Firestopping collars consist of a heavy gauge metallic device filled with a highly intumescent firestopping material. These collars typically accommodate pipes up to 4 inches in diameter. The collar mounts easily around non-metallic pipes by means of clamps and toggle or anchor bolts securing it to the wall or floor. Collars are often called plastic pipe devices or “pipe choke” devices. This is due to the intumescent material expanding during heating, while the plastic pipe melts, thus “choking” the opening closed.
NOTE: This is an unformatted excerpt from our online fire protection training library.

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