Trenchless pipe relining with hybrid technique is the most effective solution in case of complex situations where linear stretches combine with multiple and/or small inlets.
In the case of Bisceglie, in fact, the pipeline had totally missing portionswhich made the sheath technology the most suitable; at the same time, however, one of the horizontal sections to be repaired included a graft of a vertical section that also required repair.
Therefore, we proceeded with the rehabilitation with sheath technique on horizontal sections and with the “Spray Coat” system on vertical sections and grafts.
The sheath method, involving the insertion of atubular polyester fabric impregnated with epoxy resin inside the damaged pipe, is ideal for repairing pipes with major injuries, long stretches and large diameters.
The spray application of a particular two-component epoxy resin, directly on the inner surfaces of the old pipe, is particularly suitable to seal all micro-lesions, detached collars and joints between the main pipe and inputs, being able to reach every point with maximum precision.
Their combined use allows therefore to restore downpipes, drainage columns and sewer pipes, even those of complex conformity, in a rapid, absolutely non-invasive and definitive way.
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