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1. WO2013160776 - INTUMESCENT MATERIAL FIRE STOP DEVICE

Publication Number WO/2013/160776
Publication Date 31.10.2013
International Application No. PCT/IB2013/051840
International Filing Date 08.03.2013
IPC
F16L 5/04 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
5Devices for use where pipes, cables or protective tubing pass through walls or partitions
02Sealing
04to form a firebreak device
CPC
A62C 2/065
AHUMAN NECESSITIES
62LIFE-SAVING; FIRE-FIGHTING
CFIRE-FIGHTING
2Fire prevention or containment
06Physical fire-barriers
065having as the main closure device materials, whose characteristics undergo an irreversible change under high temperatures, e.g. intumescent
F16L 5/04
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
5Devices for use where pipes, cables or protective tubing pass through walls or partitions
02Sealing
04to form a firebreak device
Applicants
  • MARVON S.R.L. [IT]/[IT]
Inventors
  • RAMORINO, Giorgio
  • DAMIOLI, Paolo
  • MASSARI, Corrado
  • SBICEGO, Andrea
  • VITALI, Gabriele
Agents
  • BIESSE S.R.L.
Priority Data
MI2012A00068724.04.2012IT
Publication Language English (EN)
Filing Language Italian (IT)
Designated States
Title
(EN) INTUMESCENT MATERIAL FIRE STOP DEVICE
(FR) DISPOSITIF COUPE-FEU PRÉSENTANT UN MATÉRIAU INTUMESCENT
Abstract
(EN)
An intumescent material fire stop device (1), comprising a support body (2) shaped so as to take a collar-like shape around an axis (A) and to define an opening (24) intended to house a pipe (T), an expandable element (3), made up of at least one intumescent material and positioned in the support body (2), and one or more foldable fin (30) joined to the support body (2) by at least one respective hinge portion (33) along a radially inner peripheral edge (22) of said opening (24). Due to the expansion of the expandable element (3), the fins (30) are movable between an initial position, in which the fins (30) are substantially parallel to each other and not intercepting said opening (24), to a closing position, in which the fins (30) converge towards the axis (A) to close at least partially the opening (24). Advantageously the expandable element (3) is made of at least one first intumescent material, expandable at temperatures equal to or greater than a first activation temperature T1, and at least one second intumescent material, expandable at temperatures equal to or greater than a second activation temperature T2 higher than said first activation temperature T1. The first intumescent material and the second intumescent material are axially staggered.
(FR)
L'invention concerne un dispositif coupe-feu présentant un matériau intumescent (1) comprenant un corps de support (2) formé de manière à adopter la forme d'un collier autour d'un axe (A) et à définir une ouverture (24) conçue pour accueillir une conduite (T), un élément expansible (3) composé d'au moins un matériau intumescent et positionné dans le corps de support (2) et une ou plusieurs ailettes repliables (30) raccordée au corps de support (2) par au moins une partie charnière respective (33) le long d'un bord périphérique radialement interne (22) de ladite ouverture (24). En raison de l'expansion de l'élément expansible (3), les ailettes (30) sont mobiles entre une position initiale, dans laquelle les ailettes (30) sont sensiblement parallèles les unes aux autres et n'interceptent pas ladite ouverture (24), et une position de fermeture, dans laquelle les ailettes (30) convergent en direction de l'axe (A) pour fermer au moins partiellement l'ouverture (24). L'élément expansible (3) est avantageusement composé d'au moins un premier matériau intumescent expansible à des températures égales ou supérieures à une première température d'activation T1 et d'au moins un second matériau intumescent expansible à des températures égales ou supérieures à une seconde température d'activation T2 supérieure à ladite première température d'activation T1. Le premier matériau intumescent et le second matériau intumescent sont espacés axialement.
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