GB2452053A - Conduit sleeve for preventing fire spread through wall or ceiling opening - Google Patents
Conduit sleeve for preventing fire spread through wall or ceiling opening Download PDFInfo
- Publication number
- GB2452053A GB2452053A GB0716347A GB0716347A GB2452053A GB 2452053 A GB2452053 A GB 2452053A GB 0716347 A GB0716347 A GB 0716347A GB 0716347 A GB0716347 A GB 0716347A GB 2452053 A GB2452053 A GB 2452053A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sleeve
- weight
- approximately
- elastomeric binder
- fibres
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 239000000463 material Substances 0.000 claims abstract description 27
- 239000011230 binding agent Substances 0.000 claims abstract description 18
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 13
- 239000010439 graphite Substances 0.000 claims abstract description 13
- 229920000126 latex Polymers 0.000 claims abstract description 10
- 239000004816 latex Substances 0.000 claims abstract description 10
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000004744 fabric Substances 0.000 claims abstract description 8
- 239000011888 foil Substances 0.000 claims abstract description 8
- 239000011521 glass Substances 0.000 claims abstract description 8
- 239000000203 mixture Substances 0.000 claims abstract description 7
- 239000002390 adhesive tape Substances 0.000 claims abstract 2
- 239000002174 Styrene-butadiene Substances 0.000 claims description 2
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 claims description 2
- 229920000131 polyvinylidene Polymers 0.000 claims description 2
- 239000011115 styrene butadiene Substances 0.000 claims description 2
- 229920003048 styrene butadiene rubber Polymers 0.000 claims description 2
- 229920006174 synthetic rubber latex Polymers 0.000 claims description 2
- 239000011490 mineral wool Substances 0.000 description 7
- 239000000779 smoke Substances 0.000 description 5
- 239000002184 metal Substances 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C2/00—Fire prevention or containment
- A62C2/06—Physical fire-barriers
- A62C2/065—Physical fire-barriers having as the main closure device materials, whose characteristics undergo an irreversible change under high temperatures, e.g. intumescent
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/94—Protection against other undesired influences or dangers against fire
- E04B1/947—Protection against other undesired influences or dangers against fire by closing openings in walls or the like in the case of fire
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L5/00—Devices for use where pipes, cables or protective tubing pass through walls or partitions
- F16L5/02—Sealing
- F16L5/04—Sealing to form a firebreak device
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Electromagnetism (AREA)
- Physics & Mathematics (AREA)
- Structural Engineering (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Building Environments (AREA)
Abstract
A sleeve for lining a service conduit opening in a wall or ceiling is formed from one or more flexible sheets of intumescent material shaped to define a tube housed within an outer sheath. The sheath comprises an inner layer of glass cloth and an outer layer of metallic foil. The or each sheet of intumescent material comprises a mix of exfoliating material, rockwell fibres and an elastomeric binder. The exfoliating material may be exfoliating graphite. The elastomeric binder may be acrylic latex. The metallic foil may be adhered to the glass cloth by double sided adhesive tape.
Description
Sleeves for Lining Wall and Ceiling Openings This invention relates to flexible sleeves for lining and sealing wall and ceiling openings in the event of fire.
A problem facing architects and building engineers is to prevent the spread of fire and smoke through and along service conduits and other openings in walls and ceilings through which pipes, conduits and other services pass. Conventionally, openings are lined with relatively loose fitting metal sleeves which, in the event of fire, provide no effective barrier to the passage of fire and smoke from one room to an adjacent room or passageway.
One object of the present invention is to provide a sleeve for lining a wall or ceiling opening which is sufficiently flexible to provide a close fit within the opening and with a service conduit passing there through, and which exfoliates in the presence of a fire substantially to fill the opening to inhibit the passage of fire and smoke.
In one aspect the invention provides a sleeve for lining a wall or ceiling opening for inter a/ia a service conduit, the sleeve including one or more flexible sheets of exfoliating material shaped to define a tube housed within an outer sheath comprising a sheet of glass cloth to which is adhered an outer layer of metallic foil, each sheet of exfoliating material comprising a mix of exfoliating material, rockwool fibres and an elastomeric binder, the mix comprising from 12% to 20% by weight of elastomeric binder and at least 20% by weight of rockwool fibres.
The exfoliating material may by exfoliating graphite.
The metallic foil may be adhered to the glass cloth using double-sided tape.
In another aspect, the invention provides a tubular sleeve for lining an opening in a wall or ceiling, the sleeve being of a size to permit one or more service conduits or the like to be inserted there through, the sleeve comprising a tubular body formed from sheets of exfoliating material to whose external surface is adhered a sheath comprising an inner sheet of glass cloth and an outer layer of metallic foil, each sheet of exfoliating material comprising a substantially homogenious mix of exfoliating graphite, rockwool fibres and an elastomeric binder.
Preferably, the rockwool fibres are present in an amount of up to 70% by weight of the material.
The elastomeric binder may comprise acrylic latex.
The material may comprise 60% by weight rockwool fibres, 25% by weight exfoliating graphite and 15% acrylic latex elastomeric binder.
Alternatively, the material may comprise 35% by weight rockwool fibres, 50% by weight exfoliating graphite and 15% by weight acrylic latex elastomeric binder. 2.
In a further embodiment, the material comprises 25% by weight rockwool fibres, 60% by weight exfoliating graphite and 15% acrylic latex elastomeric binder.
The elastomeric binder may be selected from, for example, a styrene butadiene latex, a synthetic rubber latex and polyvinylidene dichioride.
The concentration of exfoliating graphite used will generally depend upon the extent of intumescence required and the degree of expansion which the sheet is required to produce in a given application. The greater the concentration of exfoliating graphite, the greater the degree of expansion produced by the sheet material in the event of fire.
The sheet material is preferably produced by one of the methods described in our patent GB 22731 OOB.
In use, sleeves in accordance with this invention have sufficient flexibility for them to be positioned as a relatively close fit within a wall or ceiling opening through which a service conduit or the like is to pass. The conduit may, for example, be produced from a metal or plastics material. The sleeve ends may be trimmed if necessary and the sleeve may be secured to the opening periphery by any suitable means. The conduit is then pushed through the sleeve with the sleeve internal surface in close contact with the external surface of the conduit. Alternatively, the sleeve is positioned around the conduit before the assembly is located within the opening. In this latter case the sleeve may be attached to the conduit with, for example, double sided tape.
In the event of a fire, the exfoliating content of the sleeve intumesces to seal the opening to prevent the passage of smoke and fire to the neighbouring room or corridor.
It will be appreciated that the fire and smoke resistant sleeves described are merely exemplary of sleeves in accordance with the invention and that modifications can be made thereto without departing from the true scope of the invention.
Claims (10)
- Claims I. A sleeve for lining a wall or ceiling opening for inter a/ia a service conduit, the sleeve including one or more flexible sheets of material shaped to define a tube housed within an outer sheath comprising a sheet of glass cloth to which is adhered an outer layer of metallic foil, the or each sheet of material comprising a mix of exfoliating material, rockwell fibres and an elastomeric binder, the mix comprising from 12% to 20% by weight of elastomeric binder and at least 20% by weight of rockwell fibres.
- 2. A sleeve as claimed in claim I wherein the exfoliating material is exfoliating graphite.
- 3. A sleeve as claimed in claim I or claim 2 wherein the metallic foil is adhered to the sheet of glass cloth by double sided adhesive tape.
- 4. A tubular sleeve for lining an opening in a wall or ceiling, the sleeve being of a size to permit one or more service conduits or the like to be inserted therethrough, the sleeve comprising a tubular body formed from sheets of flexible material to whose external surface is adhered a sheath comprising an inner layer of glass cloth and an * ** outer layer of metallic foil, the or each sheet of flexible material comprising a S...substantially homogenious mix of exfoliating graphite, rockwell fibres and * ** elastomeric binder. * S S S.. SS S..
- 5. A sleeve as claimed in any one of the preceding claims wherein the rockwell fibres are present in an amount of up to 70% by weight of the material. *.SS
- 6. A sleeve as claimed in any one of the preceding claims wherein the elastomeric binder comprises acrylic latex.
- 7. A sleeve as claimed in any one of the preceding claims wherein the material comprises approximately 60% by weight rockwell fibres, approximately 25% by weight exfoliating graphite and approximately 15% by weight acrylic latex elastomeric binder.
- 8. A sleeve as claimed in any one of claims I to 6 wherein the material comprises by weight approximately 35% rockwell fibres, approximately 50% exfoliating graphite and approximately 15% acrylic latex elastomeric binder.
- 9. A sleeve as claimed in any one of claims I to 6 wherein the material comprises by weight approximately 25% rockwell fibres, approximately 60% exfoliating graphite and approximately 15% acrylic latex elastomeric binder.
- 10. A sleeve as claimed in any one of the preceding claims wherein the elastomeric binder comprises a styrene butadiene laytex or a synthetic rubber latex or polyvinylidene. * ** * * I * ** * * *I** * SI * * S I.. SS *.SS **SS * SS S. SS *S.S
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0716347A GB2452053A (en) | 2007-08-22 | 2007-08-22 | Conduit sleeve for preventing fire spread through wall or ceiling opening |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0716347A GB2452053A (en) | 2007-08-22 | 2007-08-22 | Conduit sleeve for preventing fire spread through wall or ceiling opening |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB0716347D0 GB0716347D0 (en) | 2007-10-03 |
| GB2452053A true GB2452053A (en) | 2009-02-25 |
Family
ID=38599058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB0716347A Withdrawn GB2452053A (en) | 2007-08-22 | 2007-08-22 | Conduit sleeve for preventing fire spread through wall or ceiling opening |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2452053A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2177246A1 (en) * | 2008-10-15 | 2010-04-21 | Instumescent Systems Limited | Sleeves for lining wall and ceiling openings |
| GB2531598A (en) * | 2014-10-24 | 2016-04-27 | Intumescent Systems Ltd | Fire proofed Acoustic Liners for electrical socket boxes |
| NO344025B1 (en) * | 2018-02-23 | 2019-08-19 | Conectate & Kiwi S L | Device for preventing the spread of fire |
| GB2583735A (en) * | 2019-05-07 | 2020-11-11 | Intumescent Systems Ltd | Cable trays |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4364210A (en) * | 1980-05-29 | 1982-12-21 | Minnesota Mining And Manufacturing Company | Fire barrier device |
| GB2273100A (en) * | 1992-11-18 | 1994-06-08 | Environmental Seals Ltd | Intumescent products |
| US5681640A (en) * | 1995-10-27 | 1997-10-28 | Flame Seal Products, Inc. | Passive fire protection systems for conduit, cable trays, support rods, and structural steel |
| US20020155240A1 (en) * | 2001-04-19 | 2002-10-24 | Arndt Andresen | Firestopping sleeve |
-
2007
- 2007-08-22 GB GB0716347A patent/GB2452053A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4364210A (en) * | 1980-05-29 | 1982-12-21 | Minnesota Mining And Manufacturing Company | Fire barrier device |
| GB2273100A (en) * | 1992-11-18 | 1994-06-08 | Environmental Seals Ltd | Intumescent products |
| US5681640A (en) * | 1995-10-27 | 1997-10-28 | Flame Seal Products, Inc. | Passive fire protection systems for conduit, cable trays, support rods, and structural steel |
| US20020155240A1 (en) * | 2001-04-19 | 2002-10-24 | Arndt Andresen | Firestopping sleeve |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2177246A1 (en) * | 2008-10-15 | 2010-04-21 | Instumescent Systems Limited | Sleeves for lining wall and ceiling openings |
| GB2531598A (en) * | 2014-10-24 | 2016-04-27 | Intumescent Systems Ltd | Fire proofed Acoustic Liners for electrical socket boxes |
| GB2531598B (en) * | 2014-10-24 | 2020-01-01 | Intumescent Systems Ltd | Fire proofed acoustic liners for electrical socket boxes |
| NO344025B1 (en) * | 2018-02-23 | 2019-08-19 | Conectate & Kiwi S L | Device for preventing the spread of fire |
| NO20180287A1 (en) * | 2018-02-23 | 2019-08-19 | Conectate & Kiwi S L | Device for preventing the spread of fire |
| GB2583735A (en) * | 2019-05-07 | 2020-11-11 | Intumescent Systems Ltd | Cable trays |
Also Published As
| Publication number | Publication date |
|---|---|
| GB0716347D0 (en) | 2007-10-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |