FR2238022A1 - Fire resistant ventilation duct - has inner and outer tubes formed from layers of aluminium and plastic foam - Google Patents

Fire resistant ventilation duct - has inner and outer tubes formed from layers of aluminium and plastic foam

Info

Publication number
FR2238022A1
FR2238022A1 FR7327309A FR7327309A FR2238022A1 FR 2238022 A1 FR2238022 A1 FR 2238022A1 FR 7327309 A FR7327309 A FR 7327309A FR 7327309 A FR7327309 A FR 7327309A FR 2238022 A1 FR2238022 A1 FR 2238022A1
Authority
FR
France
Prior art keywords
aluminium
layers
fire resistant
ventilation duct
plastic foam
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.)
Granted
Application number
FR7327309A
Other languages
French (fr)
Other versions
FR2238022B1 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Lincrusta SA
Original Assignee
Lincrusta SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Lincrusta SA filed Critical Lincrusta SA
Priority to FR7327309A priority Critical patent/FR2238022A1/en
Publication of FR2238022A1 publication Critical patent/FR2238022A1/en
Application granted granted Critical
Publication of FR2238022B1 publication Critical patent/FR2238022B1/fr
Granted legal-status Critical Current

Links

Classifications

    • 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
    • F16L59/00—Thermal insulation in general
    • F16L59/14—Arrangements for the insulation of pipes or pipe systems
    • F16L59/16—Arrangements specially adapted to local requirements at flanges, junctions, valves or the like
    • F16L59/22—Arrangements specially adapted to local requirements at flanges, junctions, valves or the like adapted for bends
    • 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
    • F16L59/00—Thermal insulation in general
    • F16L59/02—Shape or form of insulating materials, with or without coverings integral with the insulating materials
    • F16L59/029—Shape or form of insulating materials, with or without coverings integral with the insulating materials layered
    • 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
    • F16L59/00—Thermal insulation in general
    • F16L59/14—Arrangements for the insulation of pipes or pipe systems
    • F16L59/145—Arrangements for the insulation of pipes or pipe systems providing fire-resistance
    • 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
    • F16L9/00—Rigid pipes
    • F16L9/16—Rigid pipes wound from sheets or strips, with or without reinforcement
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/02—Ducting arrangements
    • F24F13/0263—Insulation for air ducts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/02—Ducting arrangements
    • F24F13/0281—Multilayer duct

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)

Abstract

Ventilation duc comprising two tubes (1, 2) sliding one inside the other, each tube consisting of layers of aluminium alternating with layers of cellulose material and cellular thermoplastic material, the layers of aluminium being on the outside of the outer tube and the inside of the inner tube. Straight sections are easily joined together and the joint is sealed with adhesive tape preferably made of aluminium covered with heat resistant adhesive. Bends (20) have the same external diameter as the outer tube (2) and the same internal diameter as the inner tube (1) and have several outer layers of aluminium. The duct has high fire resistant properties.
FR7327309A 1973-07-20 1973-07-20 Fire resistant ventilation duct - has inner and outer tubes formed from layers of aluminium and plastic foam Granted FR2238022A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7327309A FR2238022A1 (en) 1973-07-20 1973-07-20 Fire resistant ventilation duct - has inner and outer tubes formed from layers of aluminium and plastic foam

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7327309A FR2238022A1 (en) 1973-07-20 1973-07-20 Fire resistant ventilation duct - has inner and outer tubes formed from layers of aluminium and plastic foam

Publications (2)

Publication Number Publication Date
FR2238022A1 true FR2238022A1 (en) 1975-02-14
FR2238022B1 FR2238022B1 (en) 1976-11-12

Family

ID=9123132

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7327309A Granted FR2238022A1 (en) 1973-07-20 1973-07-20 Fire resistant ventilation duct - has inner and outer tubes formed from layers of aluminium and plastic foam

Country Status (1)

Country Link
FR (1) FR2238022A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170276394A1 (en) * 2016-03-25 2017-09-28 Aqc Industries, Llc Multi-tube offset pre-insulated hvac ducting technology
US10895399B2 (en) 2016-03-25 2021-01-19 Aqc Industries, Llc Pre-insulated ductwork railing technology

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170276394A1 (en) * 2016-03-25 2017-09-28 Aqc Industries, Llc Multi-tube offset pre-insulated hvac ducting technology
US10234168B2 (en) * 2016-03-25 2019-03-19 Aqc Industries, Llc Multi-tube offset pre-insulated HVAC ducting technology
US10648694B2 (en) 2016-03-25 2020-05-12 Aqc Industries, Llc Multi-tube offset pre-insulated HVAC ducting technology
US10895399B2 (en) 2016-03-25 2021-01-19 Aqc Industries, Llc Pre-insulated ductwork railing technology
US11460215B2 (en) 2016-03-25 2022-10-04 Aqc Industries, Llc Pre-insulated ductwork railing technology

Also Published As

Publication number Publication date
FR2238022B1 (en) 1976-11-12

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Legal Events

Date Code Title Description
ST Notification of lapse