Flame-resistant tube for braking systems
AssigneeIVG COLBACHINI S.p.A
InventorGiuseppe Colbachini
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Abstract
A tube for railroad pressurized air braking systems comprises a tube substrate made of a synthetic rubber, at least a reinforcement fabric material layer arranged above the substrate and a further synthetic rubber layer coating the at least a reinforcement fabric material layer, the tube comprising moreover at least a layer of a heat resistant material arranged above the synthetic rubber layer and coated by an outer synthetic rubber layer. With respect to prior braking system tubes, the inventive tube has the advantage that it can resist up to a free-flame temperature, i.e. a temperature of about 700-800° C., for a time of at least 15 minutes, while preserving its operating properties (such as a pressure resistance up to 5 atm).
Claims7
A tube for pressurized air braking systems of the type comprising a synthetic rubber sublayer, at least a fabric reinforcement layer arranged above said sublayer and a further synthetic rubber layer coating said at least a reinforcement fabric layer, characterized in that said tube further comprises at least a heat resistant material layer arranged above said synthetic rubber layer and coated by a synthetic rubber outer layer.
Dependencies are inferred from the claim text.