DE29717224U1 - Fire-retardant pipe insulation through walls or ceilings - Google Patents

Description

UBA Tec GmbH - 1 - 24.09.1997

Fire-retardant pipe sealing through wall or ceiling

Technical area

The invention relates to a fire-retardant pipe sealing through a wall or ceiling, consisting of a pipe sleeve or core hole, a carrier material and an intumescent fire protection material. A metal disc can also be placed on the ceiling or on both sides of the wall.

Legal regulations require that larger buildings be divided into fire compartments. This results in special requirements for floor ceilings, stairwell and corridor walls. Pipes, shafts and ducts usually run through the entire building, including the fire compartments.

Special precautions must be taken when routing pipes, shafts and ducts through fire compartments to prevent the spread of fire and smoke.

State of the art

Different pipe sleeves are known for sealing pipes through walls or ceilings,

There are pipe sleeves that are flush with the wall or ceiling or that protrude from the wall or ceiling.

These pipe sleeves consist of an outer sleeve (also in two parts) on the inside of which the fire protection material is applied, which expands inwards when exposed to heat and encloses the pipe to be protected.

The pipe sleeve depends on the respective outer diameter of the pipe.

Another type of fire-retardant pipe sealing is pipe sleeves that are placed on the wall or ceiling.

The direction of expansion of the fire protection material when exposed to heat is determined by a suitably constructed housing filled with fire protection material. Here too, the dependence of the housing on the outside diameter of the pipe applies.

Another known possibility for the design of pipe sleeves is to wrap the pipe with at least one layer of a strip of fire protection material and a flexible metal foil resting on the fire protection material as a sleeve.

With this type of design, the pipe sleeve must be placed on the pipe before the pipe is installed.

It is no longer possible to remove the pipe sleeve after the pipe has been installed.

Description of the invention

Based on the aforementioned prior art, the invention aims to provide a fire-retardant pipe sealing through a wall or ceiling that is independent of the pipe’s outer diameter and easy to implement after the pipe has been installed.

This pipe sealing consists of a carrier material and an intumescent fire protection material, which can be easily fitted into the opening between the pipe and the pipe sleeve or core hole.

The carrier material can also consist of an intumescent material.

Regardless of the shape, the carrier material only serves to support the intumescent fire protection material.

The pipe, consisting of non-combustible material or of combustible plastics or of a combination of both, is insulated or not insulated, whereby the insulation can be both combustible and non-combustible.

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The intumescent material can have different viscosities.

The opening between the pipe and the pipe sleeve or the core hole can be filled over the entire height of the ceiling thickness or the entire width of the wall thickness, or even less depending on the requirements. If the requirements are particularly high, a metal disc can be attached to the wall or ceiling to finish it off.

If the pipe sealing is to be subsequently installed in a ceiling or wall penetration, the conversion can also be carried out using a two-part pipe sleeve made of combustible or non-combustible material.

With an intumescent material that retains its elastic consistency after setting, the present solution meets the requirements of sound insulation.

The invention is illustrated below using exemplary embodiments in drawings:

Fig. 1 Sectional view of a pipe insulation through the ceiling, insulated pipe with pipe sleeve

Fig. 2 Sectional view of a pipe insulation through the ceiling, non-insulated pipe through a core hole

Fig. 3 Sectional view of a pipe insulation through the wall, non-insulated pipe with pipe sleeve

Fig. 4 Sectional view of a pipe insulation through the wall, insulated pipe through a core hole

In the event of a fire, the intumescent material forms a fire-, heat- and smoke-tight seal in pipe penetrations with flammable or non-flammable pipes.

When pipe penetrations are made with flammable pipes (plastic pipes), the pipe melts and the fire protection material expands considerably, thus sealing the pipe sleeve or core hole against fire, heat and smoke.

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List of reference symbols

1 pipe - flammable / non-flammable

2 Insulation - flammable / non-flammable

3 metallic disc

4 Fire protection material, intumescent

5 Carrier material

6 Pipe sleeve

7 Mortar

8 Core drilling

Claims (5)

-6- Claims 1. Fire-retardant pipe sealing through wall and ceiling with a material that intumescent under the influence of strong heat between pipe (1) and pipe sleeve (6) or core hole (8), characterized in that the opening between pipe (1) or insulation (2) and pipe sleeve (6) or core hole (8) is filled with the fire protection material (4). 2. Pipe sealing according to claim 1, characterized in that the opening between the pipe (1) or insulation (2) and the pipe sleeve (6) or core hole (8) is filled with a carrier material (5) onto which the fire protection material is applied. 3. Pipe sealing also according to claim 1 and 2, characterized in that in the case of particularly high requirements a metallic disk (3) is attached to the wall or ceiling. 4. Pipe sealing according to one of the preceding claims, characterized in that pipe (1) is guided through a pipe sleeve (6) or through a core bore (8). 5. Pipe sealing according to claim 4, characterized in that the opening between the pipe sleeve (6) and the wall opening is filled with mortar (5).