Extruded multitubular device

摘要

A multitubular device which comprises an external cylindrical or regular polygonal tubing which exhibits a profile of longitudinal constant or invariable section and internal cavities which are defined by separating membranes, said external cylindrical or regular polygonal tubing and said separating membranes being made of high density polyethylene (HDPE) or equivalents thereof. Preferably, said multitubular device is a heptatube, a dodecatube or a tridecatube. Particularly in the case of the heptatube, same comprises an external cylindrical tubing (1) of longitudinally constant section profile which bears seven cavities (2) defined by separating membranes (3) six of said cavities being of irregular trapezoidal shape and the remaining cavity being of circular, hexagonal or regular polygonal shape, said cavity being concentrically arranged as regards said external cylindrical tubing, defining internal smaller sides (4) of each of said trapezoidal cavities and the internal outline (5) of the central cavity, membrane (3) separating said trapezoidal cavities from said central cavity, said external cylindrical tubing and said separating membranes being made of high density polyethylene (HDPE). A procedure for the production of the multitubular device, a method for the installation thereof, a die for the production of the heptatube production, use of the multitubular device for cables' housing and laying, a joint and use of said joint, preferably for the connection of multitube stretches.