Free pulling
Used for the renewal of worn-out pressure and gravity pipelines where operating conditions allow a significant reduction in the diameter of the old pipe.
Polyethylene, polypropylene and fibreglass pipes are pulled into the old pipes using various pulling devices.
Forced pulling
Used for the renewal of worn-out pressure and gravity pipelines where operating conditions do not allow or require a reduction or increase in the diameter of the old pipe.
Static or dynamic pipe-breaking machines break the old pipe and replace it with new polyethylene pipes with a diameter equal to or larger than the diameter of the pipe to be renovated.
CIPP – pipe covering
Used for the renewal of old gravity and pressure pipelines, where only a minimal reduction of the diameter of the old pipe is allowed, but at the same time, it is necessary to restore the mechanical strength of the pipe. The advantages of this method are particularly pronounced in areas where excavation is absolutely undesirable or impossible.
From 2021, we are also applying this technology to the renovation of heat pipes. The upgrade makes the pipeline resistant to rusting, withstand pressures of >16 bars and remain unaffected by high temperatures
CIPP – manhole casing
Used for the rehabilitation of old, non-hermetic and mechanically damaged reinforced concrete or masonry manholes. CIPP renovation of manholes allows restoration of the mechanical strength of the manhole, prolonging the service life of the structure, and eliminating groundwater infiltration and sewage ingress into the ground.
CIPP manhole renovation usually does not require excavation; therefore, the technology facilitates work in urbanised areas or in areas where excavation is not possible.
Manhole sliplining
Used for the rehabilitation of old reinforced concrete manholes to extend their durability and to ensure airtightness.
Special high-pressure equipment is used to spray the inner surface of the manhole with cementitious or epoxy resin compounds.
