ES1050548U - Piercing device with fluid circulation pipes for tight connection of a shunt. (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Pipe drilling device with liquid circulation for tight connection of a branch, which is intended to perform a drilling in a main pipeline with liquid circulation under pressure or without pressure, to allow establishing the connection of a branch or branch from said main pipe, without interrupting the circulation of the liquid through it, characterized because it is constituted by two parts (1 and 2) related to each other, one of which is tubular and open at both ends, constituting an adapter, while the other it is determined by a long rod mounted axially and hermetically in the previous one, said rod (2) being capable of axial displacement with respect to the adapter (1), it being provided that such tubular piece or adapter (1) has one of its ends provided with means threaded coupling (6) on one of the ends of a bushing (11) of which a wrench is part step (12), said bushing (11) being mounted at its other end on a neck (10) belonging to a flange (9) that is mounted on the corresponding main pipeline (8) to be drilled, in correspondence with the area where the drilling is going to be done; with the particularity that the rod (2) has an end section (2 ") for coupling to a driving tool or drill, while the opposite end of such rod (2) is carrying a head for mounting a drill or drill crown (3). (Machine-translation by Google Translate, not legally binding)